From bbde656263d80429b51017b077d9b4064ba13b01 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Thu, 21 Sep 2023 14:13:06 +0200 Subject: [PATCH 01/56] migration/rdma: Fix save_page method to fail on polling error qemu_rdma_save_page() reports polling error with error_report(), then succeeds anyway. This is because the variable holding the polling status *shadows* the variable the function returns. The latter remains zero. Broken since day one, and duplicated more recently. Fixes: 2da776db4846 (rdma: core logic) Fixes: b390afd8c50b (migration/rdma: Fix out of order wrid) Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Reviewed-by: Peter Xu Reviewed-by: Li Zhijian Message-ID: <20230921121312.1301864-2-armbru@redhat.com> --- migration/rdma.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/migration/rdma.c b/migration/rdma.c index a2a3db35b1..3915d1d7c9 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -3282,7 +3282,8 @@ static size_t qemu_rdma_save_page(QEMUFile *f, */ while (1) { uint64_t wr_id, wr_id_in; - int ret = qemu_rdma_poll(rdma, rdma->recv_cq, &wr_id_in, NULL); + ret = qemu_rdma_poll(rdma, rdma->recv_cq, &wr_id_in, NULL); + if (ret < 0) { error_report("rdma migration: polling error! %d", ret); goto err; @@ -3297,7 +3298,8 @@ static size_t qemu_rdma_save_page(QEMUFile *f, while (1) { uint64_t wr_id, wr_id_in; - int ret = qemu_rdma_poll(rdma, rdma->send_cq, &wr_id_in, NULL); + ret = qemu_rdma_poll(rdma, rdma->send_cq, &wr_id_in, NULL); + if (ret < 0) { error_report("rdma migration: polling error! %d", ret); goto err; From 7f3de3f02f0bd0eaa3ba4506f9a60c1c35865e93 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Thu, 21 Sep 2023 14:13:07 +0200 Subject: [PATCH 02/56] migration: Clean up local variable shadowing Local variables shadowing other local variables or parameters make the code needlessly hard to understand. Tracked down with -Wshadow=local. Clean up: delete inner declarations when they are actually redundant, else rename variables. Signed-off-by: Markus Armbruster Reviewed-by: Peter Xu Reviewed-by: Li Zhijian Message-ID: <20230921121312.1301864-3-armbru@redhat.com> --- migration/block.c | 4 ++-- migration/ram.c | 8 +++----- migration/rdma.c | 8 +++++--- migration/vmstate.c | 2 +- 4 files changed, 11 insertions(+), 11 deletions(-) diff --git a/migration/block.c b/migration/block.c index 86c2256a2b..eb6aafeb9e 100644 --- a/migration/block.c +++ b/migration/block.c @@ -440,8 +440,8 @@ static int init_blk_migration(QEMUFile *f) /* Can only insert new BDSes now because doing so while iterating block * devices may end up in a deadlock (iterating the new BDSes, too). */ for (i = 0; i < num_bs; i++) { - BlkMigDevState *bmds = bmds_bs[i].bmds; - BlockDriverState *bs = bmds_bs[i].bs; + bmds = bmds_bs[i].bmds; + bs = bmds_bs[i].bs; if (bmds) { ret = blk_insert_bs(bmds->blk, bs, &local_err); diff --git a/migration/ram.c b/migration/ram.c index 9040d66e61..0c202f8109 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -3517,8 +3517,6 @@ int colo_init_ram_cache(void) * we use the same name 'ram_bitmap' as for migration. */ if (ram_bytes_total()) { - RAMBlock *block; - RAMBLOCK_FOREACH_NOT_IGNORED(block) { unsigned long pages = block->max_length >> TARGET_PAGE_BITS; block->bmap = bitmap_new(pages); @@ -3998,12 +3996,12 @@ static int ram_load_precopy(QEMUFile *f) } } if (migrate_ignore_shared()) { - hwaddr addr = qemu_get_be64(f); + hwaddr addr2 = qemu_get_be64(f); if (migrate_ram_is_ignored(block) && - block->mr->addr != addr) { + block->mr->addr != addr2) { error_report("Mismatched GPAs for block %s " "%" PRId64 "!= %" PRId64, - id, (uint64_t)addr, + id, (uint64_t)addr2, (uint64_t)block->mr->addr); ret = -EINVAL; } diff --git a/migration/rdma.c b/migration/rdma.c index 3915d1d7c9..c78ddfcb74 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -1902,9 +1902,11 @@ static int qemu_rdma_exchange_send(RDMAContext *rdma, RDMAControlHeader *head, * by waiting for a READY message. */ if (rdma->control_ready_expected) { - RDMAControlHeader resp; - ret = qemu_rdma_exchange_get_response(rdma, - &resp, RDMA_CONTROL_READY, RDMA_WRID_READY); + RDMAControlHeader resp_ignored; + + ret = qemu_rdma_exchange_get_response(rdma, &resp_ignored, + RDMA_CONTROL_READY, + RDMA_WRID_READY); if (ret < 0) { return ret; } diff --git a/migration/vmstate.c b/migration/vmstate.c index 31842c3afb..438ea77cfa 100644 --- a/migration/vmstate.c +++ b/migration/vmstate.c @@ -97,7 +97,7 @@ int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, return -EINVAL; } if (vmsd->pre_load) { - int ret = vmsd->pre_load(opaque); + ret = vmsd->pre_load(opaque); if (ret) { return ret; } From e33e66b1b3655d98aadebf7e22eae18077698401 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Thu, 21 Sep 2023 14:13:08 +0200 Subject: [PATCH 03/56] ui: Clean up local variable shadowing Local variables shadowing other local variables or parameters make the code needlessly hard to understand. Tracked down with -Wshadow=local. Clean up: delete inner declarations when they are actually redundant, else rename variables. Signed-off-by: Markus Armbruster Reviewed-by: Peter Maydell Message-ID: <20230921121312.1301864-4-armbru@redhat.com> --- ui/gtk.c | 14 +++++++------- ui/spice-display.c | 9 +++++---- ui/vnc-enc-zrle.c.inc | 9 ++++----- ui/vnc-palette.c | 2 -- ui/vnc.c | 12 ++++++------ 5 files changed, 22 insertions(+), 24 deletions(-) diff --git a/ui/gtk.c b/ui/gtk.c index e09f97a86b..3373427c9b 100644 --- a/ui/gtk.c +++ b/ui/gtk.c @@ -930,8 +930,8 @@ static gboolean gd_motion_event(GtkWidget *widget, GdkEventMotion *motion, GdkMonitor *monitor = gdk_display_get_monitor_at_window(dpy, win); GdkRectangle geometry; - int x = (int)motion->x_root; - int y = (int)motion->y_root; + int xr = (int)motion->x_root; + int yr = (int)motion->y_root; gdk_monitor_get_geometry(monitor, &geometry); @@ -942,13 +942,13 @@ static gboolean gd_motion_event(GtkWidget *widget, GdkEventMotion *motion, * may still be only half way across the screen. Without * this warp, the server pointer would thus appear to hit * an invisible wall */ - if (x <= geometry.x || x - geometry.x >= geometry.width - 1 || - y <= geometry.y || y - geometry.y >= geometry.height - 1) { + if (xr <= geometry.x || xr - geometry.x >= geometry.width - 1 || + yr <= geometry.y || yr - geometry.y >= geometry.height - 1) { GdkDevice *dev = gdk_event_get_device((GdkEvent *)motion); - x = geometry.x + geometry.width / 2; - y = geometry.y + geometry.height / 2; + xr = geometry.x + geometry.width / 2; + yr = geometry.y + geometry.height / 2; - gdk_device_warp(dev, screen, x, y); + gdk_device_warp(dev, screen, xr, yr); s->last_set = FALSE; return FALSE; } diff --git a/ui/spice-display.c b/ui/spice-display.c index 5cc47bd668..6eb98a5a5c 100644 --- a/ui/spice-display.c +++ b/ui/spice-display.c @@ -1081,15 +1081,16 @@ static void qemu_spice_gl_update(DisplayChangeListener *dcl, } if (render_cursor) { - int x, y; + int ptr_x, ptr_y; + qemu_mutex_lock(&ssd->lock); - x = ssd->ptr_x; - y = ssd->ptr_y; + ptr_x = ssd->ptr_x; + ptr_y = ssd->ptr_y; qemu_mutex_unlock(&ssd->lock); egl_texture_blit(ssd->gls, &ssd->blit_fb, &ssd->guest_fb, !y_0_top); egl_texture_blend(ssd->gls, &ssd->blit_fb, &ssd->cursor_fb, - !y_0_top, x, y, 1.0, 1.0); + !y_0_top, ptr_x, ptr_y, 1.0, 1.0); glFlush(); } diff --git a/ui/vnc-enc-zrle.c.inc b/ui/vnc-enc-zrle.c.inc index a8ca37d05e..2ef7501d52 100644 --- a/ui/vnc-enc-zrle.c.inc +++ b/ui/vnc-enc-zrle.c.inc @@ -153,11 +153,12 @@ static void ZRLE_ENCODE_TILE(VncState *vs, ZRLE_PIXEL *data, int w, int h, } if (use_rle) { - ZRLE_PIXEL *ptr = data; - ZRLE_PIXEL *end = ptr + w * h; ZRLE_PIXEL *run_start; ZRLE_PIXEL pix; + ptr = data; + end = ptr + w * h; + while (ptr < end) { int len; int index = 0; @@ -198,7 +199,7 @@ static void ZRLE_ENCODE_TILE(VncState *vs, ZRLE_PIXEL *data, int w, int h, } } else if (use_palette) { /* no RLE */ int bppp; - ZRLE_PIXEL *ptr = data; + ptr = data; /* packed pixels */ @@ -241,8 +242,6 @@ static void ZRLE_ENCODE_TILE(VncState *vs, ZRLE_PIXEL *data, int w, int h, #endif { #ifdef ZRLE_COMPACT_PIXEL - ZRLE_PIXEL *ptr; - for (ptr = data; ptr < data + w * h; ptr++) { ZRLE_WRITE_PIXEL(vs, *ptr); } diff --git a/ui/vnc-palette.c b/ui/vnc-palette.c index dc7c0ba997..4e88c412f0 100644 --- a/ui/vnc-palette.c +++ b/ui/vnc-palette.c @@ -86,8 +86,6 @@ int palette_put(VncPalette *palette, uint32_t color) return 0; } if (!entry) { - VncPaletteEntry *entry; - entry = &palette->pool[palette->size]; entry->color = color; entry->idx = idx; diff --git a/ui/vnc.c b/ui/vnc.c index c302bb07a5..523eb1f5b0 100644 --- a/ui/vnc.c +++ b/ui/vnc.c @@ -1584,15 +1584,15 @@ static void vnc_jobs_bh(void *opaque) */ static int vnc_client_read(VncState *vs) { - size_t ret; + size_t sz; #ifdef CONFIG_VNC_SASL if (vs->sasl.conn && vs->sasl.runSSF) - ret = vnc_client_read_sasl(vs); + sz = vnc_client_read_sasl(vs); else #endif /* CONFIG_VNC_SASL */ - ret = vnc_client_read_plain(vs); - if (!ret) { + sz = vnc_client_read_plain(vs); + if (!sz) { if (vs->disconnecting) { vnc_disconnect_finish(vs); return -1; @@ -3118,8 +3118,8 @@ static int vnc_refresh_server_surface(VncDisplay *vd) cmp_bytes = MIN(VNC_DIRTY_PIXELS_PER_BIT * VNC_SERVER_FB_BYTES, server_stride); if (vd->guest.format != VNC_SERVER_FB_FORMAT) { - int width = pixman_image_get_width(vd->server); - tmpbuf = qemu_pixman_linebuf_create(VNC_SERVER_FB_FORMAT, width); + int w = pixman_image_get_width(vd->server); + tmpbuf = qemu_pixman_linebuf_create(VNC_SERVER_FB_FORMAT, w); } else { int guest_bpp = PIXMAN_FORMAT_BPP(pixman_image_get_format(vd->guest.fb)); From 6a0f7ff7dd2034fb167557f0444e1f1851dbd654 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Thu, 21 Sep 2023 14:13:09 +0200 Subject: [PATCH 04/56] block/dirty-bitmap: Clean up local variable shadowing Local variables shadowing other local variables or parameters make the code needlessly hard to understand. Tracked down with -Wshadow=local. Clean up: rename both the pair of parameters and the pair of local variables. While there, move the local variables to function scope. Suggested-by: Kevin Wolf Signed-off-by: Markus Armbruster Reviewed-by: Kevin Wolf Message-ID: <20230921121312.1301864-5-armbru@redhat.com> --- block/monitor/bitmap-qmp-cmds.c | 19 ++++++++++--------- block/qcow2-bitmap.c | 3 +-- 2 files changed, 11 insertions(+), 11 deletions(-) diff --git a/block/monitor/bitmap-qmp-cmds.c b/block/monitor/bitmap-qmp-cmds.c index 55f778f5af..70d01a3776 100644 --- a/block/monitor/bitmap-qmp-cmds.c +++ b/block/monitor/bitmap-qmp-cmds.c @@ -258,37 +258,38 @@ void qmp_block_dirty_bitmap_disable(const char *node, const char *name, bdrv_disable_dirty_bitmap(bitmap); } -BdrvDirtyBitmap *block_dirty_bitmap_merge(const char *node, const char *target, +BdrvDirtyBitmap *block_dirty_bitmap_merge(const char *dst_node, + const char *dst_bitmap, BlockDirtyBitmapOrStrList *bms, HBitmap **backup, Error **errp) { BlockDriverState *bs; BdrvDirtyBitmap *dst, *src; BlockDirtyBitmapOrStrList *lst; + const char *src_node, *src_bitmap; HBitmap *local_backup = NULL; GLOBAL_STATE_CODE(); - dst = block_dirty_bitmap_lookup(node, target, &bs, errp); + dst = block_dirty_bitmap_lookup(dst_node, dst_bitmap, &bs, errp); if (!dst) { return NULL; } for (lst = bms; lst; lst = lst->next) { switch (lst->value->type) { - const char *name, *node; case QTYPE_QSTRING: - name = lst->value->u.local; - src = bdrv_find_dirty_bitmap(bs, name); + src_bitmap = lst->value->u.local; + src = bdrv_find_dirty_bitmap(bs, src_bitmap); if (!src) { - error_setg(errp, "Dirty bitmap '%s' not found", name); + error_setg(errp, "Dirty bitmap '%s' not found", src_bitmap); goto fail; } break; case QTYPE_QDICT: - node = lst->value->u.external.node; - name = lst->value->u.external.name; - src = block_dirty_bitmap_lookup(node, name, NULL, errp); + src_node = lst->value->u.external.node; + src_bitmap = lst->value->u.external.name; + src = block_dirty_bitmap_lookup(src_node, src_bitmap, NULL, errp); if (!src) { goto fail; } diff --git a/block/qcow2-bitmap.c b/block/qcow2-bitmap.c index 037fa2d435..ffd5cd3b23 100644 --- a/block/qcow2-bitmap.c +++ b/block/qcow2-bitmap.c @@ -1555,7 +1555,6 @@ bool qcow2_store_persistent_dirty_bitmaps(BlockDriverState *bs, FOR_EACH_DIRTY_BITMAP(bs, bitmap) { const char *name = bdrv_dirty_bitmap_name(bitmap); uint32_t granularity = bdrv_dirty_bitmap_granularity(bitmap); - Qcow2Bitmap *bm; if (!bdrv_dirty_bitmap_get_persistence(bitmap) || bdrv_dirty_bitmap_inconsistent(bitmap)) { @@ -1625,7 +1624,7 @@ bool qcow2_store_persistent_dirty_bitmaps(BlockDriverState *bs, /* allocate clusters and store bitmaps */ QSIMPLEQ_FOREACH(bm, bm_list, entry) { - BdrvDirtyBitmap *bitmap = bm->dirty_bitmap; + bitmap = bm->dirty_bitmap; if (bitmap == NULL || bdrv_dirty_bitmap_readonly(bitmap)) { continue; From d25b99c72b0178ce0e0c766b07011102dbbacf6a Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Thu, 21 Sep 2023 14:13:10 +0200 Subject: [PATCH 05/56] block/vdi: Clean up local variable shadowing Local variables shadowing other local variables or parameters make the code needlessly hard to understand. Tracked down with -Wshadow=local. Clean up: delete inner declarations when they are actually redundant, else rename variables. Signed-off-by: Markus Armbruster Reviewed-by: Stefan Hajnoczi Reviewed-by: Kevin Wolf Message-ID: <20230921121312.1301864-6-armbru@redhat.com> --- block/vdi.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/block/vdi.c b/block/vdi.c index 6c35309e04..934e1b849b 100644 --- a/block/vdi.c +++ b/block/vdi.c @@ -634,7 +634,6 @@ vdi_co_pwritev(BlockDriverState *bs, int64_t offset, int64_t bytes, bmap_entry = le32_to_cpu(s->bmap[block_index]); if (!VDI_IS_ALLOCATED(bmap_entry)) { /* Allocate new block and write to it. */ - uint64_t data_offset; qemu_co_rwlock_upgrade(&s->bmap_lock); bmap_entry = le32_to_cpu(s->bmap[block_index]); if (VDI_IS_ALLOCATED(bmap_entry)) { @@ -700,7 +699,7 @@ nonallocating_write: /* One or more new blocks were allocated. */ VdiHeader *header; uint8_t *base; - uint64_t offset; + uint64_t bmap_offset; uint32_t n_sectors; g_free(block); @@ -723,11 +722,11 @@ nonallocating_write: bmap_first /= (SECTOR_SIZE / sizeof(uint32_t)); bmap_last /= (SECTOR_SIZE / sizeof(uint32_t)); n_sectors = bmap_last - bmap_first + 1; - offset = s->bmap_sector + bmap_first; + bmap_offset = s->bmap_sector + bmap_first; base = ((uint8_t *)&s->bmap[0]) + bmap_first * SECTOR_SIZE; logout("will write %u block map sectors starting from entry %u\n", n_sectors, bmap_first); - ret = bdrv_co_pwrite(bs->file, offset * SECTOR_SIZE, + ret = bdrv_co_pwrite(bs->file, bmap_offset * SECTOR_SIZE, n_sectors * SECTOR_SIZE, base, 0); } From fb2575f95411644abe7f0606594035b63a5132ad Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Thu, 21 Sep 2023 14:13:11 +0200 Subject: [PATCH 06/56] block: Clean up local variable shadowing Local variables shadowing other local variables or parameters make the code needlessly hard to understand. Tracked down with -Wshadow=local. Clean up: delete inner declarations when they are actually redundant, else rename variables. Signed-off-by: Markus Armbruster Reviewed-by: Stefan Hajnoczi Acked-by: Anthony PERARD Acked-by: Ilya Dryomov Reviewed-by: Kevin Wolf Message-ID: <20230921121312.1301864-7-armbru@redhat.com> --- block.c | 9 +++++---- block/rbd.c | 2 +- block/stream.c | 1 - block/vvfat.c | 35 ++++++++++++++++++----------------- hw/block/xen-block.c | 6 +++--- 5 files changed, 27 insertions(+), 26 deletions(-) diff --git a/block.c b/block.c index e7f349b25c..af04c8ac6f 100644 --- a/block.c +++ b/block.c @@ -3072,18 +3072,19 @@ bdrv_attach_child_common(BlockDriverState *child_bs, &local_err); if (ret < 0 && child_class->change_aio_ctx) { - Transaction *tran = tran_new(); + Transaction *aio_ctx_tran = tran_new(); GHashTable *visited = g_hash_table_new(NULL, NULL); bool ret_child; g_hash_table_add(visited, new_child); ret_child = child_class->change_aio_ctx(new_child, child_ctx, - visited, tran, NULL); + visited, aio_ctx_tran, + NULL); if (ret_child == true) { error_free(local_err); ret = 0; } - tran_finalize(tran, ret_child == true ? 0 : -1); + tran_finalize(aio_ctx_tran, ret_child == true ? 0 : -1); g_hash_table_destroy(visited); } @@ -6208,12 +6209,12 @@ void bdrv_iterate_format(void (*it)(void *opaque, const char *name), QLIST_FOREACH(drv, &bdrv_drivers, list) { if (drv->format_name) { bool found = false; - int i = count; if (use_bdrv_whitelist && !bdrv_is_whitelisted(drv, read_only)) { continue; } + i = count; while (formats && i && !found) { found = !strcmp(formats[--i], drv->format_name); } diff --git a/block/rbd.c b/block/rbd.c index 978671411e..472ca05cba 100644 --- a/block/rbd.c +++ b/block/rbd.c @@ -1290,7 +1290,7 @@ static int coroutine_fn qemu_rbd_start_co(BlockDriverState *bs, * operations that exceed the current size. */ if (offset + bytes > s->image_size) { - int r = qemu_rbd_resize(bs, offset + bytes); + r = qemu_rbd_resize(bs, offset + bytes); if (r < 0) { return r; } diff --git a/block/stream.c b/block/stream.c index e4da214f1f..133cb72fb4 100644 --- a/block/stream.c +++ b/block/stream.c @@ -292,7 +292,6 @@ void stream_start(const char *job_id, BlockDriverState *bs, /* Make sure that the image is opened in read-write mode */ bs_read_only = bdrv_is_read_only(bs); if (bs_read_only) { - int ret; /* Hold the chain during reopen */ if (bdrv_freeze_backing_chain(bs, above_base, errp) < 0) { return; diff --git a/block/vvfat.c b/block/vvfat.c index 0ddc91fc09..856b479c91 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -777,7 +777,6 @@ static int read_directory(BDRVVVFATState* s, int mapping_index) while((entry=readdir(dir))) { unsigned int length=strlen(dirname)+2+strlen(entry->d_name); char* buffer; - direntry_t* direntry; struct stat st; int is_dot=!strcmp(entry->d_name,"."); int is_dotdot=!strcmp(entry->d_name,".."); @@ -857,7 +856,7 @@ static int read_directory(BDRVVVFATState* s, int mapping_index) /* fill with zeroes up to the end of the cluster */ while(s->directory.next%(0x10*s->sectors_per_cluster)) { - direntry_t* direntry=array_get_next(&(s->directory)); + direntry = array_get_next(&(s->directory)); memset(direntry,0,sizeof(direntry_t)); } @@ -1962,24 +1961,24 @@ get_cluster_count_for_direntry(BDRVVVFATState* s, direntry_t* direntry, const ch * This is horribly inefficient, but that is okay, since * it is rarely executed, if at all. */ - int64_t offset = cluster2sector(s, cluster_num); + int64_t offs = cluster2sector(s, cluster_num); vvfat_close_current_file(s); for (i = 0; i < s->sectors_per_cluster; i++) { int res; res = bdrv_is_allocated(s->qcow->bs, - (offset + i) * BDRV_SECTOR_SIZE, + (offs + i) * BDRV_SECTOR_SIZE, BDRV_SECTOR_SIZE, NULL); if (res < 0) { return -1; } if (!res) { - res = vvfat_read(s->bs, offset, s->cluster_buffer, 1); + res = vvfat_read(s->bs, offs, s->cluster_buffer, 1); if (res) { return -1; } - res = bdrv_co_pwrite(s->qcow, offset * BDRV_SECTOR_SIZE, + res = bdrv_co_pwrite(s->qcow, offs * BDRV_SECTOR_SIZE, BDRV_SECTOR_SIZE, s->cluster_buffer, 0); if (res < 0) { @@ -2467,8 +2466,9 @@ commit_direntries(BDRVVVFATState* s, int dir_index, int parent_mapping_index) for (c = first_cluster; !fat_eof(s, c); c = modified_fat_get(s, c)) { direntry_t *first_direntry; - void* direntry = array_get(&(s->directory), current_dir_index); - int ret = vvfat_read(s->bs, cluster2sector(s, c), direntry, + + direntry = array_get(&(s->directory), current_dir_index); + ret = vvfat_read(s->bs, cluster2sector(s, c), (uint8_t *)direntry, s->sectors_per_cluster); if (ret) return ret; @@ -2690,12 +2690,12 @@ static int handle_renames_and_mkdirs(BDRVVVFATState* s) direntry_t* direntry = array_get(&(s->directory), mapping->info.dir.first_dir_index); uint32_t c = mapping->begin; - int i = 0; + int j = 0; /* recurse */ while (!fat_eof(s, c)) { do { - direntry_t* d = direntry + i; + direntry_t *d = direntry + j; if (is_file(d) || (is_directory(d) && !is_dot(d))) { int l; @@ -2716,8 +2716,8 @@ static int handle_renames_and_mkdirs(BDRVVVFATState* s) schedule_rename(s, m->begin, new_path); } - i++; - } while((i % (0x10 * s->sectors_per_cluster)) != 0); + j++; + } while (j % (0x10 * s->sectors_per_cluster) != 0); c = fat_get(s, c); } } @@ -2804,16 +2804,16 @@ static int coroutine_fn GRAPH_RDLOCK handle_commits(BDRVVVFATState* s) int begin = commit->param.new_file.first_cluster; mapping_t* mapping = find_mapping_for_cluster(s, begin); direntry_t* entry; - int i; + int j; /* find direntry */ - for (i = 0; i < s->directory.next; i++) { - entry = array_get(&(s->directory), i); + for (j = 0; j < s->directory.next; j++) { + entry = array_get(&(s->directory), j); if (is_file(entry) && begin_of_direntry(entry) == begin) break; } - if (i >= s->directory.next) { + if (j >= s->directory.next) { fail = -6; continue; } @@ -2833,8 +2833,9 @@ static int coroutine_fn GRAPH_RDLOCK handle_commits(BDRVVVFATState* s) mapping->mode = MODE_NORMAL; mapping->info.file.offset = 0; - if (commit_one_file(s, i, 0)) + if (commit_one_file(s, j, 0)) { fail = -7; + } break; } diff --git a/hw/block/xen-block.c b/hw/block/xen-block.c index 3906b9058b..a07cd7eb5d 100644 --- a/hw/block/xen-block.c +++ b/hw/block/xen-block.c @@ -369,7 +369,7 @@ static void xen_block_get_vdev(Object *obj, Visitor *v, const char *name, case XEN_BLOCK_VDEV_TYPE_XVD: case XEN_BLOCK_VDEV_TYPE_HD: case XEN_BLOCK_VDEV_TYPE_SD: { - char *name = disk_to_vbd_name(vdev->disk); + char *vbd_name = disk_to_vbd_name(vdev->disk); str = g_strdup_printf("%s%s%lu", (vdev->type == XEN_BLOCK_VDEV_TYPE_XVD) ? @@ -377,8 +377,8 @@ static void xen_block_get_vdev(Object *obj, Visitor *v, const char *name, (vdev->type == XEN_BLOCK_VDEV_TYPE_HD) ? "hd" : "sd", - name, vdev->partition); - g_free(name); + vbd_name, vdev->partition); + g_free(vbd_name); break; } default: From bb71846325e23d884ca4ff1bcc95aaead0131a5a Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Thu, 21 Sep 2023 14:13:12 +0200 Subject: [PATCH 07/56] qobject atomics osdep: Make a few macros more hygienic MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Variables declared in macros can shadow other variables. Much of the time, this is harmless, e.g.: #define _FDT(exp) \ do { \ int ret = (exp); \ if (ret < 0) { \ error_report("error creating device tree: %s: %s", \ #exp, fdt_strerror(ret)); \ exit(1); \ } \ } while (0) Harmless shadowing in h_client_architecture_support(): target_ulong ret; [...] ret = do_client_architecture_support(cpu, spapr, vec, fdt_bufsize); if (ret == H_SUCCESS) { _FDT((fdt_pack(spapr->fdt_blob))); [...] } return ret; However, we can get in trouble when the shadowed variable is used in a macro argument: #define QOBJECT(obj) ({ \ typeof(obj) o = (obj); \ o ? container_of(&(o)->base, QObject, base) : NULL; \ }) QOBJECT(o) expands into ({ ---> typeof(o) o = (o); o ? container_of(&(o)->base, QObject, base) : NULL; }) Unintended variable name capture at --->. We'd be saved by -Winit-self. But I could certainly construct more elaborate death traps that don't trigger it. To reduce the risk of trapping ourselves, we use variable names in macros that no sane person would use elsewhere. Here's our actual definition of QOBJECT(): #define QOBJECT(obj) ({ \ typeof(obj) _obj = (obj); \ _obj ? container_of(&(_obj)->base, QObject, base) : NULL; \ }) Works well enough until we nest macro calls. For instance, with #define qobject_ref(obj) ({ \ typeof(obj) _obj = (obj); \ qobject_ref_impl(QOBJECT(_obj)); \ _obj; \ }) the expression qobject_ref(obj) expands into ({ typeof(obj) _obj = (obj); qobject_ref_impl( ({ ---> typeof(_obj) _obj = (_obj); _obj ? container_of(&(_obj)->base, QObject, base) : NULL; })); _obj; }) Unintended variable name capture at --->. The only reliable way to prevent unintended variable name capture is -Wshadow. One blocker for enabling it is shadowing hiding in function-like macros like qdict_put(dict, "name", qobject_ref(...)) qdict_put() wraps its last argument in QOBJECT(), and the last argument here contains another QOBJECT(). Use dark preprocessor sorcery to make the macros that give us this problem use different variable names on every call. Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Message-ID: <20230921121312.1301864-8-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé --- include/qapi/qmp/qobject.h | 10 ++++++++-- include/qemu/atomic.h | 17 ++++++++++++----- include/qemu/compiler.h | 3 +++ include/qemu/osdep.h | 27 ++++++++++++++++++++------- 4 files changed, 43 insertions(+), 14 deletions(-) diff --git a/include/qapi/qmp/qobject.h b/include/qapi/qmp/qobject.h index 9003b71fd3..89b97d88bc 100644 --- a/include/qapi/qmp/qobject.h +++ b/include/qapi/qmp/qobject.h @@ -45,10 +45,16 @@ struct QObject { struct QObjectBase_ base; }; -#define QOBJECT(obj) ({ \ +/* + * Preprocessor sorcery ahead: use a different identifier for the + * local variable in each expansion, so we can nest macro calls + * without shadowing variables. + */ +#define QOBJECT_INTERNAL(obj, _obj) ({ \ typeof(obj) _obj = (obj); \ - _obj ? container_of(&(_obj)->base, QObject, base) : NULL; \ + _obj ? container_of(&_obj->base, QObject, base) : NULL; \ }) +#define QOBJECT(obj) QOBJECT_INTERNAL((obj), MAKE_IDENTFIER(_obj)) /* Required for qobject_to() */ #define QTYPE_CAST_TO_QNull QTYPE_QNULL diff --git a/include/qemu/atomic.h b/include/qemu/atomic.h index d95612f7a0..f1d3d1702a 100644 --- a/include/qemu/atomic.h +++ b/include/qemu/atomic.h @@ -157,13 +157,20 @@ smp_read_barrier_depends(); #endif -#define qatomic_rcu_read(ptr) \ - ({ \ +/* + * Preprocessor sorcery ahead: use a different identifier for the + * local variable in each expansion, so we can nest macro calls + * without shadowing variables. + */ +#define qatomic_rcu_read_internal(ptr, _val) \ + ({ \ qemu_build_assert(sizeof(*ptr) <= ATOMIC_REG_SIZE); \ - typeof_strip_qual(*ptr) _val; \ - qatomic_rcu_read__nocheck(ptr, &_val); \ - _val; \ + typeof_strip_qual(*ptr) _val; \ + qatomic_rcu_read__nocheck(ptr, &_val); \ + _val; \ }) +#define qatomic_rcu_read(ptr) \ + qatomic_rcu_read_internal((ptr), MAKE_IDENTFIER(_val)) #define qatomic_rcu_set(ptr, i) do { \ qemu_build_assert(sizeof(*ptr) <= ATOMIC_REG_SIZE); \ diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h index 7fda29b445..7f1bbbf05f 100644 --- a/include/qemu/compiler.h +++ b/include/qemu/compiler.h @@ -37,6 +37,9 @@ #define tostring(s) #s #endif +/* Expands into an identifier stemN, where N is another number each time */ +#define MAKE_IDENTFIER(stem) glue(stem, __COUNTER__) + #ifndef likely #define likely(x) __builtin_expect(!!(x), 1) #define unlikely(x) __builtin_expect(!!(x), 0) diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index e4a4eb2d61..18b940db75 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -383,19 +383,28 @@ void QEMU_ERROR("code path is reachable") * determined by the pre-processor instead of the compiler, you'll * have to open-code it. Sadly, Coverity is severely confused by the * constant variants, so we have to dumb things down there. + * + * Preprocessor sorcery ahead: use different identifiers for the local + * variables in each expansion, so we can nest macro calls without + * shadowing variables. */ -#undef MIN -#define MIN(a, b) \ +#define MIN_INTERNAL(a, b, _a, _b) \ ({ \ typeof(1 ? (a) : (b)) _a = (a), _b = (b); \ _a < _b ? _a : _b; \ }) -#undef MAX -#define MAX(a, b) \ +#undef MIN +#define MIN(a, b) \ + MIN_INTERNAL((a), (b), MAKE_IDENTFIER(_a), MAKE_IDENTFIER(_b)) + +#define MAX_INTERNAL(a, b, _a, _b) \ ({ \ typeof(1 ? (a) : (b)) _a = (a), _b = (b); \ _a > _b ? _a : _b; \ }) +#undef MAX +#define MAX(a, b) \ + MAX_INTERNAL((a), (b), MAKE_IDENTFIER(_a), MAKE_IDENTFIER(_b)) #ifdef __COVERITY__ # define MIN_CONST(a, b) ((a) < (b) ? (a) : (b)) @@ -416,14 +425,18 @@ void QEMU_ERROR("code path is reachable") /* * Minimum function that returns zero only if both values are zero. * Intended for use with unsigned values only. + * + * Preprocessor sorcery ahead: use different identifiers for the local + * variables in each expansion, so we can nest macro calls without + * shadowing variables. */ -#ifndef MIN_NON_ZERO -#define MIN_NON_ZERO(a, b) \ +#define MIN_NON_ZERO_INTERNAL(a, b, _a, _b) \ ({ \ typeof(1 ? (a) : (b)) _a = (a), _b = (b); \ _a == 0 ? _b : (_b == 0 || _b > _a) ? _a : _b; \ }) -#endif +#define MIN_NON_ZERO(a, b) \ + MIN_NON_ZERO_INTERNAL((a), (b), MAKE_IDENTFIER(_a), MAKE_IDENTFIER(_b)) /* * Round number down to multiple. Safe when m is not a power of 2 (see From 9a239c6eae68e0bfb989f9ebb2907e04f98fde99 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:13 +0200 Subject: [PATCH 08/56] tcg: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: tcg/tcg.c:2551:27: error: declaration shadows a local variable [-Werror,-Wshadow] MemOp op = get_memop(oi); ^ tcg/tcg.c:2437:12: note: previous declaration is here TCGOp *op; ^ accel/tcg/tb-maint.c:245:18: error: declaration shadows a local variable [-Werror,-Wshadow] for (int i = 0; i < V_L2_SIZE; i++) { ^ accel/tcg/tb-maint.c:210:9: note: previous declaration is here int i; ^ Reviewed-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-2-philmd@linaro.org> Signed-off-by: Markus Armbruster --- accel/tcg/tb-maint.c | 3 +-- tcg/tcg.c | 16 ++++++++-------- 2 files changed, 9 insertions(+), 10 deletions(-) diff --git a/accel/tcg/tb-maint.c b/accel/tcg/tb-maint.c index 32ae8af61c..8c71cebabd 100644 --- a/accel/tcg/tb-maint.c +++ b/accel/tcg/tb-maint.c @@ -207,13 +207,12 @@ static PageDesc *page_find_alloc(tb_page_addr_t index, bool alloc) { PageDesc *pd; void **lp; - int i; /* Level 1. Always allocated. */ lp = l1_map + ((index >> v_l1_shift) & (v_l1_size - 1)); /* Level 2..N-1. */ - for (i = v_l2_levels; i > 0; i--) { + for (int i = v_l2_levels; i > 0; i--) { void **p = qatomic_rcu_read(lp); if (p == NULL) { diff --git a/tcg/tcg.c b/tcg/tcg.c index 604fa9bf3e..ea94d0fbff 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -2549,21 +2549,21 @@ static void tcg_dump_ops(TCGContext *s, FILE *f, bool have_prefs) { const char *s_al, *s_op, *s_at; MemOpIdx oi = op->args[k++]; - MemOp op = get_memop(oi); + MemOp mop = get_memop(oi); unsigned ix = get_mmuidx(oi); - s_al = alignment_name[(op & MO_AMASK) >> MO_ASHIFT]; - s_op = ldst_name[op & (MO_BSWAP | MO_SSIZE)]; - s_at = atom_name[(op & MO_ATOM_MASK) >> MO_ATOM_SHIFT]; - op &= ~(MO_AMASK | MO_BSWAP | MO_SSIZE | MO_ATOM_MASK); + s_al = alignment_name[(mop & MO_AMASK) >> MO_ASHIFT]; + s_op = ldst_name[mop & (MO_BSWAP | MO_SSIZE)]; + s_at = atom_name[(mop & MO_ATOM_MASK) >> MO_ATOM_SHIFT]; + mop &= ~(MO_AMASK | MO_BSWAP | MO_SSIZE | MO_ATOM_MASK); /* If all fields are accounted for, print symbolically. */ - if (!op && s_al && s_op && s_at) { + if (!mop && s_al && s_op && s_at) { col += ne_fprintf(f, ",%s%s%s,%u", s_at, s_al, s_op, ix); } else { - op = get_memop(oi); - col += ne_fprintf(f, ",$0x%x,%u", op, ix); + mop = get_memop(oi); + col += ne_fprintf(f, ",$0x%x,%u", mop, ix); } i = 1; } From d54deb2a0723d696bc4e95265d6ccb4236cb0cf4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:14 +0200 Subject: [PATCH 09/56] target/arm/tcg: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: target/arm/tcg/translate-m-nocp.c: In function ‘gen_M_fp_sysreg_read’: target/arm/tcg/translate-m-nocp.c:509:18: warning: declaration of ‘tmp’ shadows a previous local [-Wshadow=compatible-local] 509 | TCGv_i32 tmp = load_cpu_field(v7m.fpdscr[M_REG_NS]); | ^~~ target/arm/tcg/translate-m-nocp.c:433:14: note: shadowed declaration is here 433 | TCGv_i32 tmp; | ^~~ --- target/arm/tcg/mve_helper.c: In function ‘helper_mve_vqshlsb’: target/arm/tcg/mve_helper.c:1259:19: warning: declaration of ‘r’ shadows a previous local [-Wshadow=compatible-local] 1259 | typeof(N) r = FN(N, (int8_t)(M), sizeof(N) * 8, ROUND, &su32); \ | ^ target/arm/tcg/mve_helper.c:1267:5: note: in expansion of macro ‘WRAP_QRSHL_HELPER’ 1267 | WRAP_QRSHL_HELPER(do_sqrshl_bhs, N, M, false, satp) | ^~~~~~~~~~~~~~~~~ target/arm/tcg/mve_helper.c:927:22: note: in expansion of macro ‘DO_SQSHL_OP’ 927 | TYPE r = FN(n[H##ESIZE(e)], m[H##ESIZE(e)], &sat); \ | ^~ target/arm/tcg/mve_helper.c:945:5: note: in expansion of macro ‘DO_2OP_SAT’ 945 | DO_2OP_SAT(OP##b, 1, int8_t, FN) \ | ^~~~~~~~~~ target/arm/tcg/mve_helper.c:1277:1: note: in expansion of macro ‘DO_2OP_SAT_S’ 1277 | DO_2OP_SAT_S(vqshls, DO_SQSHL_OP) | ^~~~~~~~~~~~ --- target/arm/tcg/mve_helper.c: In function ‘do_sqrshl48_d’: target/arm/tcg/mve_helper.c:2463:17: warning: declaration of ‘extval’ shadows a previous local [-Wshadow=compatible-local] 2463 | int64_t extval = sextract64(src << shift, 0, 48); | ^~~~~~ target/arm/tcg/mve_helper.c:2443:18: note: shadowed declaration is here 2443 | int64_t val, extval; | ^~~~~~ --- target/arm/tcg/mve_helper.c: In function ‘do_uqrshl48_d’: target/arm/tcg/mve_helper.c:2495:18: warning: declaration of ‘extval’ shadows a previous local [-Wshadow=compatible-local] 2495 | uint64_t extval = extract64(src << shift, 0, 48); | ^~~~~~ target/arm/tcg/mve_helper.c:2479:19: note: shadowed declaration is here 2479 | uint64_t val, extval; | ^~~~~~ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-3-philmd@linaro.org> Reviewed-by: Peter Maydell Signed-off-by: Markus Armbruster --- target/arm/tcg/mve_helper.c | 16 ++++++++-------- target/arm/tcg/translate-m-nocp.c | 2 +- 2 files changed, 9 insertions(+), 9 deletions(-) diff --git a/target/arm/tcg/mve_helper.c b/target/arm/tcg/mve_helper.c index c666a96ba1..8b99736aad 100644 --- a/target/arm/tcg/mve_helper.c +++ b/target/arm/tcg/mve_helper.c @@ -925,8 +925,8 @@ DO_1OP_IMM(vorri, DO_ORRI) bool qc = false; \ for (e = 0; e < 16 / ESIZE; e++, mask >>= ESIZE) { \ bool sat = false; \ - TYPE r = FN(n[H##ESIZE(e)], m[H##ESIZE(e)], &sat); \ - mergemask(&d[H##ESIZE(e)], r, mask); \ + TYPE r_ = FN(n[H##ESIZE(e)], m[H##ESIZE(e)], &sat); \ + mergemask(&d[H##ESIZE(e)], r_, mask); \ qc |= sat & mask & 1; \ } \ if (qc) { \ @@ -1250,11 +1250,11 @@ DO_2OP_SAT(vqsubsw, 4, int32_t, DO_SQSUB_W) #define WRAP_QRSHL_HELPER(FN, N, M, ROUND, satp) \ ({ \ uint32_t su32 = 0; \ - typeof(N) r = FN(N, (int8_t)(M), sizeof(N) * 8, ROUND, &su32); \ + typeof(N) qrshl_ret = FN(N, (int8_t)(M), sizeof(N) * 8, ROUND, &su32); \ if (su32) { \ *satp = true; \ } \ - r; \ + qrshl_ret; \ }) #define DO_SQSHL_OP(N, M, satp) \ @@ -1292,12 +1292,12 @@ DO_2OP_SAT_U(vqrshlu, DO_UQRSHL_OP) for (e = 0; e < 16 / ESIZE; e++, mask >>= ESIZE) { \ bool sat = false; \ if ((e & 1) == XCHG) { \ - TYPE r = FN(n[H##ESIZE(e)], \ + TYPE vqdmladh_ret = FN(n[H##ESIZE(e)], \ m[H##ESIZE(e - XCHG)], \ n[H##ESIZE(e + (1 - 2 * XCHG))], \ m[H##ESIZE(e + (1 - XCHG))], \ ROUND, &sat); \ - mergemask(&d[H##ESIZE(e)], r, mask); \ + mergemask(&d[H##ESIZE(e)], vqdmladh_ret, mask); \ qc |= sat & mask & 1; \ } \ } \ @@ -2454,7 +2454,7 @@ static inline int64_t do_sqrshl48_d(int64_t src, int64_t shift, return extval; } } else if (shift < 48) { - int64_t extval = sextract64(src << shift, 0, 48); + extval = sextract64(src << shift, 0, 48); if (!sat || src == (extval >> shift)) { return extval; } @@ -2486,7 +2486,7 @@ static inline uint64_t do_uqrshl48_d(uint64_t src, int64_t shift, return extval; } } else if (shift < 48) { - uint64_t extval = extract64(src << shift, 0, 48); + extval = extract64(src << shift, 0, 48); if (!sat || src == (extval >> shift)) { return extval; } diff --git a/target/arm/tcg/translate-m-nocp.c b/target/arm/tcg/translate-m-nocp.c index 33f6478bb9..42308c4db5 100644 --- a/target/arm/tcg/translate-m-nocp.c +++ b/target/arm/tcg/translate-m-nocp.c @@ -506,7 +506,7 @@ static bool gen_M_fp_sysreg_read(DisasContext *s, int regno, gen_branch_fpInactive(s, TCG_COND_EQ, lab_active); /* fpInactive case: reads as FPDSCR_NS */ - TCGv_i32 tmp = load_cpu_field(v7m.fpdscr[M_REG_NS]); + tmp = load_cpu_field(v7m.fpdscr[M_REG_NS]); storefn(s, opaque, tmp, true); lab_end = gen_new_label(); tcg_gen_br(lab_end); From 5a3d2c3562a9b35443fb4121ba6efff9d6cdbb91 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:15 +0200 Subject: [PATCH 10/56] target/arm/hvf: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Per Peter Maydell analysis [*]: The hvf_vcpu_exec() function is not documented, but in practice its caller expects it to return either EXCP_DEBUG (for "this was a guest debug exception you need to deal with") or something else (presumably the intention being 0 for OK). The hvf_sysreg_read() and hvf_sysreg_write() functions are also not documented, but they return 0 on success, or 1 for a completely unrecognized sysreg where we've raised the UNDEF exception (but not if we raised an UNDEF exception for an unrecognized GIC sysreg -- I think this is a bug). We use this return value to decide whether we need to advance the PC past the insn or not. It's not the same as the return value we want to return from hvf_vcpu_exec(). Retain the variable as locally scoped but give it a name that doesn't clash with the other function-scoped variable. This fixes: target/arm/hvf/hvf.c:1936:13: error: declaration shadows a local variable [-Werror,-Wshadow] int ret = 0; ^ target/arm/hvf/hvf.c:1807:9: note: previous declaration is here int ret; ^ [*] https://lore.kernel.org/qemu-devel/CAFEAcA_e+fU6JKtS+W63wr9cCJ6btu_hT_ydZWOwC0kBkDYYYQ@mail.gmail.com/ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-4-philmd@linaro.org> Reviewed-by: Peter Maydell Signed-off-by: Markus Armbruster --- target/arm/hvf/hvf.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c index 546c0e817f..757e13b0f9 100644 --- a/target/arm/hvf/hvf.c +++ b/target/arm/hvf/hvf.c @@ -1934,16 +1934,16 @@ int hvf_vcpu_exec(CPUState *cpu) uint32_t rt = (syndrome >> 5) & 0x1f; uint32_t reg = syndrome & SYSREG_MASK; uint64_t val; - int ret = 0; + int sysreg_ret = 0; if (isread) { - ret = hvf_sysreg_read(cpu, reg, rt); + sysreg_ret = hvf_sysreg_read(cpu, reg, rt); } else { val = hvf_get_reg(cpu, rt); - ret = hvf_sysreg_write(cpu, reg, val); + sysreg_ret = hvf_sysreg_write(cpu, reg, val); } - advance_pc = !ret; + advance_pc = !sysreg_ret; break; } case EC_WFX_TRAP: From 92e0ef7d907a7b39d942732a29c04446a4ef5cac Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:16 +0200 Subject: [PATCH 11/56] target/mips: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: target/mips/tcg/nanomips_translate.c.inc:4410:33: error: declaration shadows a local variable [-Werror,-Wshadow] int32_t imm = extract32(ctx->opcode, 1, 13) | ^ target/mips/tcg/nanomips_translate.c.inc:3577:9: note: previous declaration is here int imm; ^ target/mips/tcg/translate.c:15578:19: error: declaration shadows a local variable [-Werror,-Wshadow] for (unsigned i = 1; i < 32; i++) { ^ target/mips/tcg/translate.c:15567:9: note: previous declaration is here int i; ^ target/mips/tcg/msa_helper.c:7478:13: error: declaration shadows a local variable [-Werror,-Wshadow] MSA_FLOAT_MAXOP(pwx->w[0], min, pws->w[0], pws->w[0], 32); ^ target/mips/tcg/msa_helper.c:7434:23: note: expanded from macro 'MSA_FLOAT_MAXOP' float_status *status = &env->active_tc.msa_fp_status; ^ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-5-philmd@linaro.org> Signed-off-by: Markus Armbruster --- target/mips/tcg/msa_helper.c | 8 ++++---- target/mips/tcg/nanomips_translate.c.inc | 6 +++--- target/mips/tcg/translate.c | 8 +++----- 3 files changed, 10 insertions(+), 12 deletions(-) diff --git a/target/mips/tcg/msa_helper.c b/target/mips/tcg/msa_helper.c index c314a74397..7a8dbada5d 100644 --- a/target/mips/tcg/msa_helper.c +++ b/target/mips/tcg/msa_helper.c @@ -7432,15 +7432,15 @@ void helper_msa_ftq_df(CPUMIPSState *env, uint32_t df, uint32_t wd, #define MSA_FLOAT_MAXOP(DEST, OP, ARG1, ARG2, BITS) \ do { \ - float_status *status = &env->active_tc.msa_fp_status; \ + float_status *status_ = &env->active_tc.msa_fp_status; \ int c; \ \ - set_float_exception_flags(0, status); \ - DEST = float ## BITS ## _ ## OP(ARG1, ARG2, status); \ + set_float_exception_flags(0, status_); \ + DEST = float ## BITS ## _ ## OP(ARG1, ARG2, status_); \ c = update_msacsr(env, 0, 0); \ \ if (get_enabled_exceptions(env, c)) { \ - DEST = ((FLOAT_SNAN ## BITS(status) >> 6) << 6) | c; \ + DEST = ((FLOAT_SNAN ## BITS(status_) >> 6) << 6) | c; \ } \ } while (0) diff --git a/target/mips/tcg/nanomips_translate.c.inc b/target/mips/tcg/nanomips_translate.c.inc index a98dde0d2e..d81a7c2d11 100644 --- a/target/mips/tcg/nanomips_translate.c.inc +++ b/target/mips/tcg/nanomips_translate.c.inc @@ -4407,8 +4407,8 @@ static int decode_nanomips_32_48_opc(CPUMIPSState *env, DisasContext *ctx) case NM_BPOSGE32C: check_dsp_r3(ctx); { - int32_t imm = extract32(ctx->opcode, 1, 13) | - extract32(ctx->opcode, 0, 1) << 13; + imm = extract32(ctx->opcode, 1, 13) + | extract32(ctx->opcode, 0, 1) << 13; gen_compute_branch_nm(ctx, OPC_BPOSGE32, 4, -1, -2, imm << 1); @@ -4635,7 +4635,7 @@ static int decode_isa_nanomips(CPUMIPSState *env, DisasContext *ctx) break; case NM_LI16: { - int imm = extract32(ctx->opcode, 0, 7); + imm = extract32(ctx->opcode, 0, 7); imm = (imm == 0x7f ? -1 : imm); if (rt != 0) { tcg_gen_movi_tl(cpu_gpr[rt], imm); diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c index 9bb40f1849..26d741d960 100644 --- a/target/mips/tcg/translate.c +++ b/target/mips/tcg/translate.c @@ -15564,10 +15564,8 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, void mips_tcg_init(void) { - int i; - cpu_gpr[0] = NULL; - for (i = 1; i < 32; i++) + for (unsigned i = 1; i < 32; i++) cpu_gpr[i] = tcg_global_mem_new(cpu_env, offsetof(CPUMIPSState, active_tc.gpr[i]), @@ -15584,7 +15582,7 @@ void mips_tcg_init(void) rname); } #endif /* !TARGET_MIPS64 */ - for (i = 0; i < 32; i++) { + for (unsigned i = 0; i < 32; i++) { int off = offsetof(CPUMIPSState, active_fpu.fpr[i].wr.d[0]); fpu_f64[i] = tcg_global_mem_new_i64(cpu_env, off, fregnames[i]); @@ -15592,7 +15590,7 @@ void mips_tcg_init(void) msa_translate_init(); cpu_PC = tcg_global_mem_new(cpu_env, offsetof(CPUMIPSState, active_tc.PC), "PC"); - for (i = 0; i < MIPS_DSP_ACC; i++) { + for (unsigned i = 0; i < MIPS_DSP_ACC; i++) { cpu_HI[i] = tcg_global_mem_new(cpu_env, offsetof(CPUMIPSState, active_tc.HI[i]), regnames_HI[i]); From 574d57254596d328d1a3c419e138e69369f2a98b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:17 +0200 Subject: [PATCH 12/56] target/m68k: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: target/m68k/translate.c:828:18: error: declaration shadows a local variable [-Werror,-Wshadow] TCGv tmp = tcg_temp_new(); ^ target/m68k/translate.c:801:15: note: previous declaration is here TCGv reg, tmp, result; ^ Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Peter Maydell Message-ID: <20230904161235.84651-6-philmd@linaro.org> Signed-off-by: Markus Armbruster --- target/m68k/translate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/m68k/translate.c b/target/m68k/translate.c index 9e224fe796..15c9ddf427 100644 --- a/target/m68k/translate.c +++ b/target/m68k/translate.c @@ -824,7 +824,7 @@ static TCGv gen_ea_mode(CPUM68KState *env, DisasContext *s, int mode, int reg0, reg = get_areg(s, reg0); result = gen_ldst(s, opsize, reg, val, what, index); if (what == EA_STORE || !addrp) { - TCGv tmp = tcg_temp_new(); + tmp = tcg_temp_new(); if (reg0 == 7 && opsize == OS_BYTE && m68k_feature(s->env, M68K_FEATURE_M68K)) { tcg_gen_addi_i32(tmp, reg, 2); From 81b8056a41eabff08e243c80b628fc18bfac2b73 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:18 +0200 Subject: [PATCH 13/56] target/tricore: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: target/tricore/translate.c:5016:18: warning: declaration of ‘temp’ shadows a previous local [-Wshadow=compatible-local] 5016 | TCGv temp = tcg_constant_i32(const9); | ^~~~ target/tricore/translate.c:4958:10: note: shadowed declaration is here 4958 | TCGv temp; | ^~~~ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-7-philmd@linaro.org> Reviewed-by: Bastian Koppelmann Signed-off-by: Markus Armbruster --- target/tricore/translate.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/target/tricore/translate.c b/target/tricore/translate.c index 6ae5ccbf72..9ca211b2a8 100644 --- a/target/tricore/translate.c +++ b/target/tricore/translate.c @@ -4962,8 +4962,6 @@ static void decode_rc_logical_shift(DisasContext *ctx) const9 = MASK_OP_RC_CONST9(ctx->opcode); op2 = MASK_OP_RC_OP2(ctx->opcode); - temp = tcg_temp_new(); - switch (op2) { case OPC2_32_RC_AND: tcg_gen_andi_tl(cpu_gpr_d[r2], cpu_gpr_d[r1], const9); @@ -4972,10 +4970,12 @@ static void decode_rc_logical_shift(DisasContext *ctx) tcg_gen_andi_tl(cpu_gpr_d[r2], cpu_gpr_d[r1], ~const9); break; case OPC2_32_RC_NAND: + temp = tcg_temp_new(); tcg_gen_movi_tl(temp, const9); tcg_gen_nand_tl(cpu_gpr_d[r2], cpu_gpr_d[r1], temp); break; case OPC2_32_RC_NOR: + temp = tcg_temp_new(); tcg_gen_movi_tl(temp, const9); tcg_gen_nor_tl(cpu_gpr_d[r2], cpu_gpr_d[r1], temp); break; @@ -5013,7 +5013,7 @@ static void decode_rc_logical_shift(DisasContext *ctx) break; case OPC2_32_RC_SHUFFLE: if (has_feature(ctx, TRICORE_FEATURE_162)) { - TCGv temp = tcg_constant_i32(const9); + temp = tcg_constant_i32(const9); gen_helper_shuffle(cpu_gpr_d[r2], cpu_gpr_d[r1], temp); } else { generate_trap(ctx, TRAPC_INSN_ERR, TIN2_IOPC); From 807e4d1d2155b7cf4d18bf4e0a73c4e7023f0d57 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:19 +0200 Subject: [PATCH 14/56] hw/arm/armv7m: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: hw/arm/armv7m.c: In function ‘armv7m_realize’: hw/arm/armv7m.c:520:27: warning: declaration of ‘sbd’ shadows a previous local [-Wshadow=compatible-local] 520 | SysBusDevice *sbd = SYS_BUS_DEVICE(&s->bitband[i]); | ^~~ hw/arm/armv7m.c:278:19: note: shadowed declaration is here 278 | SysBusDevice *sbd; | ^~~ --- hw/arm/armsse.c: In function ‘armsse_realize’: hw/arm/armsse.c:1471:27: warning: declaration of ‘mr’ shadows a previous local [-Wshadow=compatible-local] 1471 | MemoryRegion *mr; | ^~ hw/arm/armsse.c:917:19: note: shadowed declaration is here 917 | MemoryRegion *mr; | ^~ --- hw/arm/armsse.c:1608:22: warning: declaration of ‘dev_splitter’ shadows a previous local [-Wshadow=compatible-local] 1608 | DeviceState *dev_splitter = DEVICE(splitter); | ^~~~~~~~~~~~ hw/arm/armsse.c:923:18: note: shadowed declaration is here 923 | DeviceState *dev_splitter; | ^~~~~~~~~~~~ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-8-philmd@linaro.org> Reviewed-by: Peter Maydell Signed-off-by: Markus Armbruster --- hw/arm/armsse.c | 16 ++++++---------- hw/arm/armv7m.c | 2 +- 2 files changed, 7 insertions(+), 11 deletions(-) diff --git a/hw/arm/armsse.c b/hw/arm/armsse.c index 11cd08b6c1..31acbf7347 100644 --- a/hw/arm/armsse.c +++ b/hw/arm/armsse.c @@ -1468,7 +1468,6 @@ static void armsse_realize(DeviceState *dev, Error **errp) if (info->has_cachectrl) { for (i = 0; i < info->num_cpus; i++) { char *name = g_strdup_printf("cachectrl%d", i); - MemoryRegion *mr; qdev_prop_set_string(DEVICE(&s->cachectrl[i]), "name", name); g_free(name); @@ -1484,7 +1483,6 @@ static void armsse_realize(DeviceState *dev, Error **errp) if (info->has_cpusecctrl) { for (i = 0; i < info->num_cpus; i++) { char *name = g_strdup_printf("CPUSECCTRL%d", i); - MemoryRegion *mr; qdev_prop_set_string(DEVICE(&s->cpusecctrl[i]), "name", name); g_free(name); @@ -1499,7 +1497,6 @@ static void armsse_realize(DeviceState *dev, Error **errp) } if (info->has_cpuid) { for (i = 0; i < info->num_cpus; i++) { - MemoryRegion *mr; qdev_prop_set_uint32(DEVICE(&s->cpuid[i]), "CPUID", i); if (!sysbus_realize(SYS_BUS_DEVICE(&s->cpuid[i]), errp)) { @@ -1512,7 +1509,6 @@ static void armsse_realize(DeviceState *dev, Error **errp) } if (info->has_cpu_pwrctrl) { for (i = 0; i < info->num_cpus; i++) { - MemoryRegion *mr; if (!sysbus_realize(SYS_BUS_DEVICE(&s->cpu_pwrctrl[i]), errp)) { return; @@ -1605,7 +1601,7 @@ static void armsse_realize(DeviceState *dev, Error **errp) /* Wire up the splitters for the MPC IRQs */ for (i = 0; i < IOTS_NUM_EXP_MPC + info->sram_banks; i++) { SplitIRQ *splitter = &s->mpc_irq_splitter[i]; - DeviceState *dev_splitter = DEVICE(splitter); + DeviceState *devs = DEVICE(splitter); if (!object_property_set_int(OBJECT(splitter), "num-lines", 2, errp)) { @@ -1617,22 +1613,22 @@ static void armsse_realize(DeviceState *dev, Error **errp) if (i < IOTS_NUM_EXP_MPC) { /* Splitter input is from GPIO input line */ - s->mpcexp_status_in[i] = qdev_get_gpio_in(dev_splitter, 0); - qdev_connect_gpio_out(dev_splitter, 0, + s->mpcexp_status_in[i] = qdev_get_gpio_in(devs, 0); + qdev_connect_gpio_out(devs, 0, qdev_get_gpio_in_named(dev_secctl, "mpcexp_status", i)); } else { /* Splitter input is from our own MPC */ qdev_connect_gpio_out_named(DEVICE(&s->mpc[i - IOTS_NUM_EXP_MPC]), "irq", 0, - qdev_get_gpio_in(dev_splitter, 0)); - qdev_connect_gpio_out(dev_splitter, 0, + qdev_get_gpio_in(devs, 0)); + qdev_connect_gpio_out(devs, 0, qdev_get_gpio_in_named(dev_secctl, "mpc_status", i - IOTS_NUM_EXP_MPC)); } - qdev_connect_gpio_out(dev_splitter, 1, + qdev_connect_gpio_out(devs, 1, qdev_get_gpio_in(DEVICE(&s->mpc_irq_orgate), i)); } /* Create GPIO inputs which will pass the line state for our diff --git a/hw/arm/armv7m.c b/hw/arm/armv7m.c index bf173b10b8..1f78e18872 100644 --- a/hw/arm/armv7m.c +++ b/hw/arm/armv7m.c @@ -517,7 +517,7 @@ static void armv7m_realize(DeviceState *dev, Error **errp) for (i = 0; i < ARRAY_SIZE(s->bitband); i++) { if (s->enable_bitband) { Object *obj = OBJECT(&s->bitband[i]); - SysBusDevice *sbd = SYS_BUS_DEVICE(&s->bitband[i]); + sbd = SYS_BUS_DEVICE(&s->bitband[i]); if (!object_property_set_int(obj, "base", bitband_input_addr[i], errp)) { From c7f14e4898bb4fcaa1420434bf4331e2843946fd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:20 +0200 Subject: [PATCH 15/56] hw/arm/virt: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: hw/arm/virt.c:821:22: error: declaration shadows a local variable [-Werror,-Wshadow] qemu_irq irq = qdev_get_gpio_in(vms->gic, ^ hw/arm/virt.c:803:13: note: previous declaration is here int irq; ^ Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Peter Maydell Message-ID: <20230904161235.84651-9-philmd@linaro.org> Signed-off-by: Markus Armbruster --- hw/arm/virt.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 8ad78b23c2..15e74249f9 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -801,7 +801,6 @@ static void create_gic(VirtMachineState *vms, MemoryRegion *mem) for (i = 0; i < smp_cpus; i++) { DeviceState *cpudev = DEVICE(qemu_get_cpu(i)); int ppibase = NUM_IRQS + i * GIC_INTERNAL + GIC_NR_SGIS; - int irq; /* Mapping from the output timer irq lines from the CPU to the * GIC PPI inputs we use for the virt board. */ @@ -812,7 +811,7 @@ static void create_gic(VirtMachineState *vms, MemoryRegion *mem) [GTIMER_SEC] = ARCH_TIMER_S_EL1_IRQ, }; - for (irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) { + for (unsigned irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) { qdev_connect_gpio_out(cpudev, irq, qdev_get_gpio_in(vms->gic, ppibase + timer_irq[irq])); From 2f6037a2359fb653704ff240fb552bd77537f9ec Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:21 +0200 Subject: [PATCH 16/56] hw/arm/allwinner: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: hw/arm/allwinner-r40.c:412:14: error: declaration shadows a local variable [-Werror,-Wshadow] for (int i = 0; i < AW_R40_NUM_MMCS; i++) { ^ hw/arm/allwinner-r40.c:299:14: note: previous declaration is here unsigned i; ^ Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Peter Maydell Message-ID: <20230904161235.84651-10-philmd@linaro.org> Signed-off-by: Markus Armbruster --- hw/arm/allwinner-r40.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/hw/arm/allwinner-r40.c b/hw/arm/allwinner-r40.c index 7d29eb224f..a0d367c60d 100644 --- a/hw/arm/allwinner-r40.c +++ b/hw/arm/allwinner-r40.c @@ -296,10 +296,9 @@ static void allwinner_r40_realize(DeviceState *dev, Error **errp) { const char *r40_nic_models[] = { "gmac", "emac", NULL }; AwR40State *s = AW_R40(dev); - unsigned i; /* CPUs */ - for (i = 0; i < AW_R40_NUM_CPUS; i++) { + for (unsigned i = 0; i < AW_R40_NUM_CPUS; i++) { /* * Disable secondary CPUs. Guest EL3 firmware will start @@ -335,7 +334,7 @@ static void allwinner_r40_realize(DeviceState *dev, Error **errp) * maintenance interrupt signal to the appropriate GIC PPI inputs, * and the GIC's IRQ/FIQ/VIRQ/VFIQ interrupt outputs to the CPU's inputs. */ - for (i = 0; i < AW_R40_NUM_CPUS; i++) { + for (unsigned i = 0; i < AW_R40_NUM_CPUS; i++) { DeviceState *cpudev = DEVICE(&s->cpus[i]); int ppibase = AW_R40_GIC_NUM_SPI + i * GIC_INTERNAL + GIC_NR_SGIS; int irq; @@ -494,7 +493,7 @@ static void allwinner_r40_realize(DeviceState *dev, Error **errp) qdev_get_gpio_in(DEVICE(&s->gic), AW_R40_GIC_SPI_EMAC)); /* Unimplemented devices */ - for (i = 0; i < ARRAY_SIZE(r40_unimplemented); i++) { + for (unsigned i = 0; i < ARRAY_SIZE(r40_unimplemented); i++) { create_unimplemented_device(r40_unimplemented[i].device_name, r40_unimplemented[i].base, r40_unimplemented[i].size); From 5f87dddbc2aaa126a6c1334115a5ec9bd33fb62a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:24 +0200 Subject: [PATCH 17/56] hw/m68k: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: hw/m68k/virt.c:263:13: error: declaration shadows a local variable [-Werror,-Wshadow] BOOTINFOSTR(param_ptr, BI_COMMAND_LINE, ^ hw/m68k/bootinfo.h:47:13: note: expanded from macro 'BOOTINFOSTR' int i; \ ^ hw/m68k/virt.c:130:9: note: previous declaration is here int i; ^ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-13-philmd@linaro.org> Reviewed-by: Thomas Huth Signed-off-by: Markus Armbruster --- hw/m68k/bootinfo.h | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/hw/m68k/bootinfo.h b/hw/m68k/bootinfo.h index a3d37e3c80..0e6e3eea87 100644 --- a/hw/m68k/bootinfo.h +++ b/hw/m68k/bootinfo.h @@ -44,15 +44,14 @@ #define BOOTINFOSTR(base, id, string) \ do { \ - int i; \ stw_p(base, id); \ base += 2; \ stw_p(base, \ (sizeof(struct bi_record) + strlen(string) + \ 1 /* null termination */ + 3 /* padding */) & ~3); \ base += 2; \ - for (i = 0; string[i]; i++) { \ - stb_p(base++, string[i]); \ + for (unsigned i_ = 0; string[i_]; i_++) { \ + stb_p(base++, string[i_]); \ } \ stb_p(base++, 0); \ base = QEMU_ALIGN_PTR_UP(base, 4); \ @@ -60,7 +59,6 @@ #define BOOTINFODATA(base, id, data, len) \ do { \ - int i; \ stw_p(base, id); \ base += 2; \ stw_p(base, \ @@ -69,8 +67,8 @@ base += 2; \ stw_p(base, len); \ base += 2; \ - for (i = 0; i < len; ++i) { \ - stb_p(base++, data[i]); \ + for (unsigned i_ = 0; i_ < len; ++i_) { \ + stb_p(base++, data[i_]); \ } \ base = QEMU_ALIGN_PTR_UP(base, 4); \ } while (0) From 4705c8e5a2d0e62a276ce21e6b15bff0e7e42bdf Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:25 +0200 Subject: [PATCH 18/56] hw/microblaze: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: hw/microblaze/petalogix_ml605_mmu.c: In function ‘petalogix_ml605_init’: hw/microblaze/petalogix_ml605_mmu.c:186:24: warning: declaration of ‘dinfo’ shadows a previous local [-Wshadow=compatible-local] 186 | DriveInfo *dinfo = drive_get(IF_MTD, 0, i); | ^~~~~ hw/microblaze/petalogix_ml605_mmu.c:78:16: note: shadowed declaration is here 78 | DriveInfo *dinfo; | ^~~~~ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-14-philmd@linaro.org> Signed-off-by: Markus Armbruster --- hw/microblaze/petalogix_ml605_mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/microblaze/petalogix_ml605_mmu.c b/hw/microblaze/petalogix_ml605_mmu.c index ea0fb68cf0..fb7889cf67 100644 --- a/hw/microblaze/petalogix_ml605_mmu.c +++ b/hw/microblaze/petalogix_ml605_mmu.c @@ -183,7 +183,7 @@ petalogix_ml605_init(MachineState *machine) spi = (SSIBus *)qdev_get_child_bus(dev, "spi"); for (i = 0; i < NUM_SPI_FLASHES; i++) { - DriveInfo *dinfo = drive_get(IF_MTD, 0, i); + dinfo = drive_get(IF_MTD, 0, i); qemu_irq cs_line; dev = qdev_new("n25q128"); From 09e24b10de02b19d193d85645c19a68b98263bef Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:26 +0200 Subject: [PATCH 19/56] hw/nios2: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: hw/nios2/10m50_devboard.c: In function ‘nios2_10m50_ghrd_init’: hw/nios2/10m50_devboard.c:101:22: warning: declaration of ‘dev’ shadows a previous local [-Wshadow=compatible-local] 101 | DeviceState *dev = qdev_new(TYPE_NIOS2_VIC); | ^~~ hw/nios2/10m50_devboard.c:60:18: note: shadowed declaration is here 60 | DeviceState *dev; | ^~~ hw/nios2/10m50_devboard.c:110:18: warning: declaration of ‘i’ shadows a previous local [-Wshadow=compatible-local] 110 | for (int i = 0; i < 32; i++) { | ^ hw/nios2/10m50_devboard.c:67:9: note: shadowed declaration is here 67 | int i; | ^ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-15-philmd@linaro.org> Signed-off-by: Markus Armbruster --- hw/nios2/10m50_devboard.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/nios2/10m50_devboard.c b/hw/nios2/10m50_devboard.c index 91383fb097..952a0dc33e 100644 --- a/hw/nios2/10m50_devboard.c +++ b/hw/nios2/10m50_devboard.c @@ -98,7 +98,7 @@ static void nios2_10m50_ghrd_init(MachineState *machine) qdev_realize_and_unref(DEVICE(cpu), NULL, &error_fatal); if (nms->vic) { - DeviceState *dev = qdev_new(TYPE_NIOS2_VIC); + dev = qdev_new(TYPE_NIOS2_VIC); MemoryRegion *dev_mr; qemu_irq cpu_irq; @@ -107,7 +107,7 @@ static void nios2_10m50_ghrd_init(MachineState *machine) cpu_irq = qdev_get_gpio_in_named(DEVICE(cpu), "EIC", 0); sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, cpu_irq); - for (int i = 0; i < 32; i++) { + for (i = 0; i < 32; i++) { irq[i] = qdev_get_gpio_in(dev, i); } From 1728593a82cdd8ffcd2a5a759fb301c71ae4c251 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:27 +0200 Subject: [PATCH 20/56] net/eth: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: net/eth.c:435:20: error: declaration shadows a local variable [-Werror,-Wshadow] size_t input_size = iov_size(pkt, pkt_frags); ^ net/eth.c:413:16: note: previous declaration is here size_t input_size = iov_size(pkt, pkt_frags); ^ Suggested-by: Akihiko Odaki Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-16-philmd@linaro.org> Reviewed-by: Eric Blake Reviewed-by: Akihiko Odaki Signed-off-by: Markus Armbruster --- net/eth.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/net/eth.c b/net/eth.c index 649e66bb1f..3f680cc033 100644 --- a/net/eth.c +++ b/net/eth.c @@ -432,8 +432,6 @@ _eth_get_rss_ex_src_addr(const struct iovec *pkt, int pkt_frags, } if (opthdr.type == IP6_OPT_HOME) { - size_t input_size = iov_size(pkt, pkt_frags); - if (input_size < opt_offset + sizeof(opthdr)) { return false; } From 5f6d4f79af6eb4b0eed9cb3272073841514ca989 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:28 +0200 Subject: [PATCH 21/56] crypto/cipher-gnutls.c: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: In file included from crypto/cipher.c:140: crypto/cipher-gnutls.c.inc: In function ‘qcrypto_gnutls_cipher_encrypt’: crypto/cipher-gnutls.c.inc:116:17: warning: declaration of ‘err’ shadows a previous local [-Wshadow=compatible-local] 116 | int err = gnutls_cipher_init(&handle, ctx->galg, &gkey, NULL); | ^~~ crypto/cipher-gnutls.c.inc:94:9: note: shadowed declaration is here 94 | int err; | ^~~ --- crypto/cipher-gnutls.c.inc: In function ‘qcrypto_gnutls_cipher_decrypt’: crypto/cipher-gnutls.c.inc:177:17: warning: declaration of ‘err’ shadows a previous local [-Wshadow=compatible-local] 177 | int err = gnutls_cipher_init(&handle, ctx->galg, &gkey, NULL); | ^~~ crypto/cipher-gnutls.c.inc:154:9: note: shadowed declaration is here 154 | int err; | ^~~ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-17-philmd@linaro.org> Reviewed-by: Daniel P. Berrangé Signed-off-by: Markus Armbruster --- crypto/cipher-gnutls.c.inc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/crypto/cipher-gnutls.c.inc b/crypto/cipher-gnutls.c.inc index 501e4e07a5..d3e231c13c 100644 --- a/crypto/cipher-gnutls.c.inc +++ b/crypto/cipher-gnutls.c.inc @@ -113,7 +113,7 @@ qcrypto_gnutls_cipher_encrypt(QCryptoCipher *cipher, while (len) { gnutls_cipher_hd_t handle; gnutls_datum_t gkey = { (unsigned char *)ctx->key, ctx->nkey }; - int err = gnutls_cipher_init(&handle, ctx->galg, &gkey, NULL); + err = gnutls_cipher_init(&handle, ctx->galg, &gkey, NULL); if (err != 0) { error_setg(errp, "Cannot initialize cipher: %s", gnutls_strerror(err)); @@ -174,7 +174,7 @@ qcrypto_gnutls_cipher_decrypt(QCryptoCipher *cipher, while (len) { gnutls_cipher_hd_t handle; gnutls_datum_t gkey = { (unsigned char *)ctx->key, ctx->nkey }; - int err = gnutls_cipher_init(&handle, ctx->galg, &gkey, NULL); + err = gnutls_cipher_init(&handle, ctx->galg, &gkey, NULL); if (err != 0) { error_setg(errp, "Cannot initialize cipher: %s", gnutls_strerror(err)); From fbf58f2141f670c1e4fc63be36e8a45330ab1e3d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:29 +0200 Subject: [PATCH 22/56] util/vhost-user-server: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: util/vhost-user-server.c: In function ‘set_watch’: util/vhost-user-server.c:274:20: warning: declaration of ‘vu_fd_watch’ shadows a previous local [-Wshadow=compatible-local] 274 | VuFdWatch *vu_fd_watch = g_new0(VuFdWatch, 1); | ^~~~~~~~~~~ util/vhost-user-server.c:271:16: note: shadowed declaration is here 271 | VuFdWatch *vu_fd_watch = find_vu_fd_watch(server, fd); | ^~~~~~~~~~~ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-18-philmd@linaro.org> Reviewed-by: Michael S. Tsirkin Signed-off-by: Markus Armbruster --- util/vhost-user-server.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/util/vhost-user-server.c b/util/vhost-user-server.c index b4b6bf30a2..5ccc6d24a0 100644 --- a/util/vhost-user-server.c +++ b/util/vhost-user-server.c @@ -278,7 +278,7 @@ set_watch(VuDev *vu_dev, int fd, int vu_evt, VuFdWatch *vu_fd_watch = find_vu_fd_watch(server, fd); if (!vu_fd_watch) { - VuFdWatch *vu_fd_watch = g_new0(VuFdWatch, 1); + vu_fd_watch = g_new0(VuFdWatch, 1); QTAILQ_INSERT_TAIL(&server->vu_fd_watches, vu_fd_watch, next); From 7f087a323768585bb6063a1ee05a03a52b6a0b8f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:31 +0200 Subject: [PATCH 23/56] linux-user/strace: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: linux-user/strace.c: In function ‘print_sockaddr’: linux-user/strace.c:370:17: warning: declaration of ‘i’ shadows a previous local [-Wshadow=compatible-local] 370 | int i; | ^ linux-user/strace.c:361:9: note: shadowed declaration is here 361 | int i; | ^ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-20-philmd@linaro.org> Signed-off-by: Markus Armbruster --- linux-user/strace.c | 1 - 1 file changed, 1 deletion(-) diff --git a/linux-user/strace.c b/linux-user/strace.c index e0ab8046ec..cf26e55264 100644 --- a/linux-user/strace.c +++ b/linux-user/strace.c @@ -367,7 +367,6 @@ print_sockaddr(abi_ulong addr, abi_long addrlen, int last) switch (sa_family) { case AF_UNIX: { struct target_sockaddr_un *un = (struct target_sockaddr_un *)sa; - int i; qemu_log("{sun_family=AF_UNIX,sun_path=\""); for (i = 0; i < addrlen - offsetof(struct target_sockaddr_un, sun_path) && From 720d6bcdbb9fd6781025f245c8d02ce179a2fc86 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:32 +0200 Subject: [PATCH 24/56] sysemu/device_tree: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: hw/mips/boston.c:472:5: error: declaration shadows a local variable [-Werror,-Wshadow] qemu_fdt_setprop_cells(fdt, name, "reg", reg_base, reg_size); ^ include/sysemu/device_tree.h:129:13: note: expanded from macro 'qemu_fdt_setprop_cells' int i; ^ hw/mips/boston.c:461:9: note: previous declaration is here int i; ^ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-21-philmd@linaro.org> Reviewed-by: Markus Armbruster Signed-off-by: Markus Armbruster --- include/sysemu/device_tree.h | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/include/sysemu/device_tree.h b/include/sysemu/device_tree.h index ca5339beae..8eab395934 100644 --- a/include/sysemu/device_tree.h +++ b/include/sysemu/device_tree.h @@ -126,10 +126,8 @@ int qemu_fdt_add_path(void *fdt, const char *path); #define qemu_fdt_setprop_cells(fdt, node_path, property, ...) \ do { \ uint32_t qdt_tmp[] = { __VA_ARGS__ }; \ - int i; \ - \ - for (i = 0; i < ARRAY_SIZE(qdt_tmp); i++) { \ - qdt_tmp[i] = cpu_to_be32(qdt_tmp[i]); \ + for (unsigned i_ = 0; i_ < ARRAY_SIZE(qdt_tmp); i_++) { \ + qdt_tmp[i_] = cpu_to_be32(qdt_tmp[i_]); \ } \ qemu_fdt_setprop(fdt, node_path, property, qdt_tmp, \ sizeof(qdt_tmp)); \ From 083f450f659c0d34766d80a99878d2a1e5f8f495 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:33 +0200 Subject: [PATCH 25/56] softmmu/memory: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: softmmu/memory.c: In function ‘mtree_print_mr’: softmmu/memory.c:3236:27: warning: declaration of ‘ml’ shadows a previous local [-Wshadow=compatible-local] 3236 | MemoryRegionList *ml; | ^~ softmmu/memory.c:3213:32: note: shadowed declaration is here 3213 | MemoryRegionList *new_ml, *ml, *next_ml; | ^~ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-22-philmd@linaro.org> Reviewed-by: Peter Xu Signed-off-by: Markus Armbruster --- softmmu/memory.c | 1 - 1 file changed, 1 deletion(-) diff --git a/softmmu/memory.c b/softmmu/memory.c index c0383a163d..234bd7b116 100644 --- a/softmmu/memory.c +++ b/softmmu/memory.c @@ -3245,7 +3245,6 @@ static void mtree_print_mr(const MemoryRegion *mr, unsigned int level, } if (mr->alias) { - MemoryRegionList *ml; bool found = false; /* check if the alias is already in the queue */ From 6ba9b60a93d4f4df70205cbeb6c547a863f3c170 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:12:34 +0200 Subject: [PATCH 26/56] softmmu/physmem: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: softmmu/physmem.c: In function ‘cpu_physical_memory_snapshot_and_clear_dirty’: softmmu/physmem.c:916:27: warning: declaration of ‘offset’ shadows a parameter [-Wshadow=compatible-local] 916 | unsigned long offset = page % DIRTY_MEMORY_BLOCK_SIZE; | ^~~~~~ softmmu/physmem.c:892:31: note: shadowed declaration is here 892 | (MemoryRegion *mr, hwaddr offset, hwaddr length, unsigned client) | ~~~~~~~^~~~~~ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904161235.84651-23-philmd@linaro.org> Reviewed-by: Daniel P. Berrangé Reviewed-by: Peter Xu Signed-off-by: Markus Armbruster --- softmmu/physmem.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/softmmu/physmem.c b/softmmu/physmem.c index 4f6ca653b3..309653c722 100644 --- a/softmmu/physmem.c +++ b/softmmu/physmem.c @@ -913,16 +913,16 @@ DirtyBitmapSnapshot *cpu_physical_memory_snapshot_and_clear_dirty while (page < end) { unsigned long idx = page / DIRTY_MEMORY_BLOCK_SIZE; - unsigned long offset = page % DIRTY_MEMORY_BLOCK_SIZE; + unsigned long ofs = page % DIRTY_MEMORY_BLOCK_SIZE; unsigned long num = MIN(end - page, - DIRTY_MEMORY_BLOCK_SIZE - offset); + DIRTY_MEMORY_BLOCK_SIZE - ofs); - assert(QEMU_IS_ALIGNED(offset, (1 << BITS_PER_LEVEL))); + assert(QEMU_IS_ALIGNED(ofs, (1 << BITS_PER_LEVEL))); assert(QEMU_IS_ALIGNED(num, (1 << BITS_PER_LEVEL))); - offset >>= BITS_PER_LEVEL; + ofs >>= BITS_PER_LEVEL; bitmap_copy_and_clear_atomic(snap->dirty + dest, - blocks->blocks[idx] + offset, + blocks->blocks[idx] + ofs, num); page += num; dest += num >> BITS_PER_LEVEL; From 5e0528a72570e95945eac841b0871f0cbba777b8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:28:22 +0200 Subject: [PATCH 27/56] hw/core/machine: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: hw/core/machine.c: In function ‘machine_initfn’: hw/core/machine.c:1081:17: warning: declaration of ‘obj’ shadows a parameter [-Wshadow=compatible-local] 1081 | Object *obj = OBJECT(ms); | ^~~ hw/core/machine.c:1065:36: note: shadowed declaration is here 1065 | static void machine_initfn(Object *obj) | ~~~~~~~~^~~ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904162824.85385-2-philmd@linaro.org> Reviewed-by: Peter Maydell Signed-off-by: Markus Armbruster --- hw/core/machine.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/hw/core/machine.c b/hw/core/machine.c index cb38b8cf4c..a232ae0bcd 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -1082,8 +1082,6 @@ static void machine_initfn(Object *obj) ms->maxram_size = mc->default_ram_size; if (mc->nvdimm_supported) { - Object *obj = OBJECT(ms); - ms->nvdimms_state = g_new0(NVDIMMState, 1); object_property_add_bool(obj, "nvdimm", machine_get_nvdimm, machine_set_nvdimm); From 1cc0c5dd38884a7c54bc806bb0ae182db275faf0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Mon, 4 Sep 2023 18:28:23 +0200 Subject: [PATCH 28/56] hw/intc/openpic: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix: hw/intc/openpic.c: In function ‘openpic_gbl_write’: hw/intc/openpic.c:614:17: warning: declaration of ‘idx’ shadows a previous local [-Wshadow=compatible-local] 614 | int idx; | ^~~ hw/intc/openpic.c:568:9: note: shadowed declaration is here 568 | int idx; | ^~~ Signed-off-by: Philippe Mathieu-Daudé Message-ID: <20230904162824.85385-3-philmd@linaro.org> Reviewed-by: Peter Maydell Signed-off-by: Markus Armbruster --- hw/intc/openpic.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/hw/intc/openpic.c b/hw/intc/openpic.c index c757adbe53..a6f91d4bcd 100644 --- a/hw/intc/openpic.c +++ b/hw/intc/openpic.c @@ -610,11 +610,8 @@ static void openpic_gbl_write(void *opaque, hwaddr addr, uint64_t val, case 0x10B0: case 0x10C0: case 0x10D0: - { - int idx; - idx = (addr - 0x10A0) >> 4; - write_IRQreg_ivpr(opp, opp->irq_ipi0 + idx, val); - } + idx = (addr - 0x10A0) >> 4; + write_IRQreg_ivpr(opp, opp->irq_ipi0 + idx, val); break; case 0x10E0: /* SPVE */ opp->spve = val & opp->vector_mask; From 90231ce1a355ce07b71f9b82446a40ac866585de Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 18 Sep 2023 16:58:43 +0200 Subject: [PATCH 29/56] hw/ppc: Clean up local variable shadowing in _FDT helper routine MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit this fixes numerous warnings of this type : In file included from ../hw/ppc/spapr_pci.c:43: ../hw/ppc/spapr_pci.c: In function ‘spapr_dt_phb’: ../include/hw/ppc/fdt.h:18:13: warning: declaration of ‘ret’ shadows a previous local [-Wshadow=compatible-local] 18 | int ret = (exp); \ | ^~~ ../hw/ppc/spapr_pci.c:2355:5: note: in expansion of macro ‘_FDT’ 2355 | _FDT(bus_off = fdt_add_subnode(fdt, 0, phb->dtbusname)); | ^~~~ ../hw/ppc/spapr_pci.c:2311:24: note: shadowed declaration is here 2311 | int bus_off, i, j, ret; | ^~~ Signed-off-by: Cédric Le Goater Message-ID: <20230918145850.241074-2-clg@kaod.org> Reviewed-by: Harsh Prateek Bora Signed-off-by: Markus Armbruster --- include/hw/ppc/fdt.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/include/hw/ppc/fdt.h b/include/hw/ppc/fdt.h index a8cd85069f..b56ac2a8cb 100644 --- a/include/hw/ppc/fdt.h +++ b/include/hw/ppc/fdt.h @@ -15,10 +15,10 @@ #define _FDT(exp) \ do { \ - int ret = (exp); \ - if (ret < 0) { \ - error_report("error creating device tree: %s: %s", \ - #exp, fdt_strerror(ret)); \ + int _ret = (exp); \ + if (_ret < 0) { \ + error_report("error creating device tree: %s: %s", \ + #exp, fdt_strerror(_ret)); \ exit(1); \ } \ } while (0) From 694616d68455eaa14f860e7a2bbe41043e8340d7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 18 Sep 2023 16:58:44 +0200 Subject: [PATCH 30/56] pnv/psi: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit to fix : ../hw/ppc/pnv_psi.c: In function ‘pnv_psi_p9_mmio_write’: ../hw/ppc/pnv_psi.c:741:24: warning: declaration of ‘addr’ shadows a parameter [-Wshadow=compatible-local] 741 | hwaddr addr = val & ~(PSIHB9_ESB_CI_VALID | PSIHB10_ESB_CI_64K); | ^~~~ ../hw/ppc/pnv_psi.c:702:56: note: shadowed declaration is here 702 | static void pnv_psi_p9_mmio_write(void *opaque, hwaddr addr, | ~~~~~~~^~~~ Signed-off-by: Cédric Le Goater Message-ID: <20230918145850.241074-3-clg@kaod.org> Reviewed-by: Harsh Prateek Bora Signed-off-by: Markus Armbruster --- hw/ppc/pnv_psi.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c index daaa2f0575..26460d210d 100644 --- a/hw/ppc/pnv_psi.c +++ b/hw/ppc/pnv_psi.c @@ -738,8 +738,9 @@ static void pnv_psi_p9_mmio_write(void *opaque, hwaddr addr, } } else { if (!(psi->regs[reg] & PSIHB9_ESB_CI_VALID)) { - hwaddr addr = val & ~(PSIHB9_ESB_CI_VALID | PSIHB10_ESB_CI_64K); - memory_region_add_subregion(sysmem, addr, + hwaddr esb_addr = + val & ~(PSIHB9_ESB_CI_VALID | PSIHB10_ESB_CI_64K); + memory_region_add_subregion(sysmem, esb_addr, &psi9->source.esb_mmio); } } From bd87a59f52c85e504323c3dbdacc84e2cefce8d1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 18 Sep 2023 16:58:45 +0200 Subject: [PATCH 31/56] spapr: Clean up local variable shadowing in spapr_dt_cpus() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Introduce a helper routine defining one CPU device node to fix this warning : ../hw/ppc/spapr.c: In function ‘spapr_dt_cpus’: ../hw/ppc/spapr.c:812:19: warning: declaration of ‘cs’ shadows a previous local [-Wshadow=compatible-local] 812 | CPUState *cs = rev[i]; | ^~ ../hw/ppc/spapr.c:786:15: note: shadowed declaration is here 786 | CPUState *cs; | ^~ Signed-off-by: Cédric Le Goater Message-ID: <20230918145850.241074-4-clg@kaod.org> Reviewed-by: Harsh Prateek Bora Signed-off-by: Markus Armbruster --- hw/ppc/spapr.c | 36 +++++++++++++++++++++--------------- 1 file changed, 21 insertions(+), 15 deletions(-) diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 1f1aa2a6d4..612dbdf356 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -780,6 +780,26 @@ static void spapr_dt_cpu(CPUState *cs, void *fdt, int offset, pcc->lrg_decr_bits))); } +static void spapr_dt_one_cpu(void *fdt, SpaprMachineState *spapr, CPUState *cs, + int cpus_offset) +{ + PowerPCCPU *cpu = POWERPC_CPU(cs); + int index = spapr_get_vcpu_id(cpu); + DeviceClass *dc = DEVICE_GET_CLASS(cs); + g_autofree char *nodename = NULL; + int offset; + + if (!spapr_is_thread0_in_vcore(spapr, cpu)) { + return; + } + + nodename = g_strdup_printf("%s@%x", dc->fw_name, index); + offset = fdt_add_subnode(fdt, cpus_offset, nodename); + _FDT(offset); + spapr_dt_cpu(cs, fdt, offset, spapr); +} + + static void spapr_dt_cpus(void *fdt, SpaprMachineState *spapr) { CPUState **rev; @@ -809,21 +829,7 @@ static void spapr_dt_cpus(void *fdt, SpaprMachineState *spapr) } for (i = n_cpus - 1; i >= 0; i--) { - CPUState *cs = rev[i]; - PowerPCCPU *cpu = POWERPC_CPU(cs); - int index = spapr_get_vcpu_id(cpu); - DeviceClass *dc = DEVICE_GET_CLASS(cs); - g_autofree char *nodename = NULL; - int offset; - - if (!spapr_is_thread0_in_vcore(spapr, cpu)) { - continue; - } - - nodename = g_strdup_printf("%s@%x", dc->fw_name, index); - offset = fdt_add_subnode(fdt, cpus_offset, nodename); - _FDT(offset); - spapr_dt_cpu(cs, fdt, offset, spapr); + spapr_dt_one_cpu(fdt, spapr, rev[i], cpus_offset); } g_free(rev); From c0b648d9e9747f44fc3c4503b3a06741b0d6e4a8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 18 Sep 2023 16:58:46 +0200 Subject: [PATCH 32/56] spapr: Clean up local variable shadowing in spapr_init_cpus() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Remove extra 'i' variable to fix this warning : ../hw/ppc/spapr.c: In function ‘spapr_init_cpus’: ../hw/ppc/spapr.c:2668:13: warning: declaration of ‘i’ shadows a previous local [-Wshadow=compatible-local] 2668 | int i; | ^ ../hw/ppc/spapr.c:2645:9: note: shadowed declaration is here 2645 | int i; | ^ Signed-off-by: Cédric Le Goater Message-ID: <20230918145850.241074-5-clg@kaod.org> Reviewed-by: Harsh Prateek Bora Signed-off-by: Markus Armbruster --- hw/ppc/spapr.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 612dbdf356..4fe82e490a 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -2665,8 +2665,6 @@ static void spapr_init_cpus(SpaprMachineState *spapr) } if (smc->pre_2_10_has_unused_icps) { - int i; - for (i = 0; i < spapr_max_server_number(spapr); i++) { /* Dummy entries get deregistered when real ICPState objects * are registered during CPU core hotplug. From 01a78f23cbaf15359a051b45c1df05269d5aa4d5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 18 Sep 2023 16:58:47 +0200 Subject: [PATCH 33/56] spapr: Clean up local variable shadowing in spapr_get_fw_dev_path() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Rename PCIDevice variable to avoid this warning : ../hw/ppc/spapr.c: In function ‘spapr_get_fw_dev_path’: ../hw/ppc/spapr.c:3217:20: warning: declaration of ‘pcidev’ shadows a previous local [-Wshadow=compatible-local] 3217 | PCIDevice *pcidev = CAST(PCIDevice, dev, TYPE_PCI_DEVICE); | ^~~~~~ ../hw/ppc/spapr.c:3147:16: note: shadowed declaration is here 3147 | PCIDevice *pcidev = CAST(PCIDevice, dev, TYPE_PCI_DEVICE); | ^~~~~~ Signed-off-by: Cédric Le Goater Message-ID: <20230918145850.241074-6-clg@kaod.org> Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Markus Armbruster --- hw/ppc/spapr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 4fe82e490a..d4230d3647 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -3214,8 +3214,8 @@ static char *spapr_get_fw_dev_path(FWPathProvider *p, BusState *bus, if (g_str_equal("pci-bridge", qdev_fw_name(dev))) { /* SLOF uses "pci" instead of "pci-bridge" for PCI bridges */ - PCIDevice *pcidev = CAST(PCIDevice, dev, TYPE_PCI_DEVICE); - return g_strdup_printf("pci@%x", PCI_SLOT(pcidev->devfn)); + PCIDevice *pdev = CAST(PCIDevice, dev, TYPE_PCI_DEVICE); + return g_strdup_printf("pci@%x", PCI_SLOT(pdev->devfn)); } if (pcidev) { From bea3d6e745fe34ca51780b623b10675ed1975b58 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 18 Sep 2023 16:58:48 +0200 Subject: [PATCH 34/56] spapr/drc: Clean up local variable shadowing in rtas_ibm_configure_connector() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Remove extra 'drc_index' variable to avoid this warning : ../hw/ppc/spapr_drc.c: In function ‘rtas_ibm_configure_connector’: ../hw/ppc/spapr_drc.c:1240:26: warning: declaration of ‘drc_index’ shadows a previous local [-Wshadow=compatible-local] 1240 | uint32_t drc_index = spapr_drc_index(drc); | ^~~~~~~~~ ../hw/ppc/spapr_drc.c:1155:14: note: shadowed declaration is here 1155 | uint32_t drc_index; | ^~~~~~~~~ Signed-off-by: Cédric Le Goater Message-ID: <20230918145850.241074-7-clg@kaod.org> Reviewed-by: Harsh Prateek Bora Signed-off-by: Markus Armbruster --- hw/ppc/spapr_drc.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c index b5c400a94d..843e318312 100644 --- a/hw/ppc/spapr_drc.c +++ b/hw/ppc/spapr_drc.c @@ -1237,8 +1237,6 @@ static void rtas_ibm_configure_connector(PowerPCCPU *cpu, case FDT_END_NODE: drc->ccs_depth--; if (drc->ccs_depth == 0) { - uint32_t drc_index = spapr_drc_index(drc); - /* done sending the device tree, move to configured state */ trace_spapr_drc_set_configured(drc_index); drc->state = drck->ready_state; From 15675f2318142f8fbfd17b161604fb4f5e9f420e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 18 Sep 2023 16:58:49 +0200 Subject: [PATCH 35/56] spapr/pci: Clean up local variable shadowing in spapr_phb_realize() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Rename SysBusDevice variable to avoid this warning : ../hw/ppc/spapr_pci.c: In function ‘spapr_phb_realize’: ../hw/ppc/spapr_pci.c:1872:24: warning: declaration of ‘s’ shadows a previous local [-Wshadow=local] 1872 | SpaprPhbState *s; | ^ ../hw/ppc/spapr_pci.c:1829:19: note: shadowed declaration is here 1829 | SysBusDevice *s = SYS_BUS_DEVICE(dev); | ^ Signed-off-by: Cédric Le Goater Message-ID: <20230918145850.241074-8-clg@kaod.org> Reviewed-by: Harsh Prateek Bora Signed-off-by: Markus Armbruster --- hw/ppc/spapr_pci.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index ce14959317..370c5a90f2 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -1826,9 +1826,9 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp) (SpaprMachineState *) object_dynamic_cast(qdev_get_machine(), TYPE_SPAPR_MACHINE); SpaprMachineClass *smc = spapr ? SPAPR_MACHINE_GET_CLASS(spapr) : NULL; - SysBusDevice *s = SYS_BUS_DEVICE(dev); - SpaprPhbState *sphb = SPAPR_PCI_HOST_BRIDGE(s); - PCIHostState *phb = PCI_HOST_BRIDGE(s); + SysBusDevice *sbd = SYS_BUS_DEVICE(dev); + SpaprPhbState *sphb = SPAPR_PCI_HOST_BRIDGE(sbd); + PCIHostState *phb = PCI_HOST_BRIDGE(sbd); MachineState *ms = MACHINE(spapr); char *namebuf; int i; From 8cf52ff5c727519791eb897410f31c4ad27300cc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 18 Sep 2023 16:58:50 +0200 Subject: [PATCH 36/56] spapr/drc: Clean up local variable shadowing in prop_get_fdt() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Rename 'name' variable to avoid this warning : ../hw/ppc/spapr_drc.c: In function ‘prop_get_fdt’: ../hw/ppc/spapr_drc.c:344:21: warning: declaration of ‘name’ shadows a parameter [-Wshadow=compatible-local] 344 | const char *name = NULL; | ^~~~ ../hw/ppc/spapr_drc.c:325:63: note: shadowed declaration is here 325 | static void prop_get_fdt(Object *obj, Visitor *v, const char *name, | ~~~~~~~~~~~~^~~~ Signed-off-by: Cédric Le Goater Message-ID: <20230918145850.241074-9-clg@kaod.org> Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Harsh Prateek Bora Signed-off-by: Markus Armbruster --- hw/ppc/spapr_drc.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c index 843e318312..2b99d3b4b1 100644 --- a/hw/ppc/spapr_drc.c +++ b/hw/ppc/spapr_drc.c @@ -341,7 +341,7 @@ static void prop_get_fdt(Object *obj, Visitor *v, const char *name, fdt_depth = 0; do { - const char *name = NULL; + const char *dt_name = NULL; const struct fdt_property *prop = NULL; int prop_len = 0, name_len = 0; uint32_t tag; @@ -351,8 +351,8 @@ static void prop_get_fdt(Object *obj, Visitor *v, const char *name, switch (tag) { case FDT_BEGIN_NODE: fdt_depth++; - name = fdt_get_name(fdt, fdt_offset, &name_len); - if (!visit_start_struct(v, name, NULL, 0, errp)) { + dt_name = fdt_get_name(fdt, fdt_offset, &name_len); + if (!visit_start_struct(v, dt_name, NULL, 0, errp)) { return; } break; @@ -369,8 +369,8 @@ static void prop_get_fdt(Object *obj, Visitor *v, const char *name, case FDT_PROP: { int i; prop = fdt_get_property_by_offset(fdt, fdt_offset, &prop_len); - name = fdt_string(fdt, fdt32_to_cpu(prop->nameoff)); - if (!visit_start_list(v, name, NULL, 0, errp)) { + dt_name = fdt_string(fdt, fdt32_to_cpu(prop->nameoff)); + if (!visit_start_list(v, dt_name, NULL, 0, errp)) { return; } for (i = 0; i < prop_len; i++) { From d8573092a49b3133530ceee35846a54e600f8a73 Mon Sep 17 00:00:00 2001 From: Alberto Garcia Date: Fri, 22 Sep 2023 12:57:42 +0200 Subject: [PATCH 37/56] test-throttle: don't shadow 'index' variable in do_test_accounting() Fixes build with -Wshadow=local Signed-off-by: Alberto Garcia Message-ID: <20230922105742.81317-1-berto@igalia.com> Reviewed-by: Markus Armbruster Signed-off-by: Markus Armbruster --- tests/unit/test-throttle.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/unit/test-throttle.c b/tests/unit/test-throttle.c index cb587e33e7..ac35d65d19 100644 --- a/tests/unit/test-throttle.c +++ b/tests/unit/test-throttle.c @@ -625,7 +625,7 @@ static bool do_test_accounting(bool is_ops, /* are we testing bps or ops */ throttle_config_init(&cfg); for (i = 0; i < 3; i++) { - BucketType index = to_test[is_ops][i]; + index = to_test[is_ops][i]; cfg.buckets[index].avg = avg; } From 7b393b71424ba105f2b1c5f2c49f8d8710ad00eb Mon Sep 17 00:00:00 2001 From: Ani Sinha Date: Fri, 22 Sep 2023 18:12:02 +0530 Subject: [PATCH 38/56] hw/acpi: changes towards enabling -Wshadow=local Code changes in acpi that addresses all compiler complaints coming from enabling -Wshadow flags. Enabling -Wshadow catches cases of local variables shadowing other local variables or parameters. These makes the code confusing and/or adds bugs that are difficult to catch. See also Subject: Help wanted for enabling -Wshadow=local Message-Id: <87r0mqlf9x.fsf@pond.sub.org> https://lore.kernel.org/qemu-devel/87r0mqlf9x.fsf@pond.sub.org The code is tested to build with and without the flag turned on. CC: Markus Armbruster CC: Philippe Mathieu-Daude CC: mst@redhat.com CC: imammedo@redhat.com Signed-off-by: Ani Sinha Message-ID: <20230922124203.127110-1-anisinha@redhat.com> Reviewed-by: Michael S. Tsirkin [Commit message tweaked] Signed-off-by: Markus Armbruster --- hw/acpi/cpu_hotplug.c | 25 +++++++++++++------------ hw/i386/acpi-build.c | 24 ++++++++++++------------ hw/smbios/smbios.c | 37 +++++++++++++++++++------------------ 3 files changed, 44 insertions(+), 42 deletions(-) diff --git a/hw/acpi/cpu_hotplug.c b/hw/acpi/cpu_hotplug.c index ff14c3f410..634bbecb31 100644 --- a/hw/acpi/cpu_hotplug.c +++ b/hw/acpi/cpu_hotplug.c @@ -265,26 +265,27 @@ void build_legacy_cpu_hotplug_aml(Aml *ctx, MachineState *machine, /* build Processor object for each processor */ for (i = 0; i < apic_ids->len; i++) { - int apic_id = apic_ids->cpus[i].arch_id; + int cpu_apic_id = apic_ids->cpus[i].arch_id; - assert(apic_id < ACPI_CPU_HOTPLUG_ID_LIMIT); + assert(cpu_apic_id < ACPI_CPU_HOTPLUG_ID_LIMIT); - dev = aml_processor(i, 0, 0, "CP%.02X", apic_id); + dev = aml_processor(i, 0, 0, "CP%.02X", cpu_apic_id); method = aml_method("_MAT", 0, AML_NOTSERIALIZED); aml_append(method, - aml_return(aml_call2(CPU_MAT_METHOD, aml_int(apic_id), aml_int(i)) + aml_return(aml_call2(CPU_MAT_METHOD, + aml_int(cpu_apic_id), aml_int(i)) )); aml_append(dev, method); method = aml_method("_STA", 0, AML_NOTSERIALIZED); aml_append(method, - aml_return(aml_call1(CPU_STATUS_METHOD, aml_int(apic_id)))); + aml_return(aml_call1(CPU_STATUS_METHOD, aml_int(cpu_apic_id)))); aml_append(dev, method); method = aml_method("_EJ0", 1, AML_NOTSERIALIZED); aml_append(method, - aml_return(aml_call2(CPU_EJECT_METHOD, aml_int(apic_id), + aml_return(aml_call2(CPU_EJECT_METHOD, aml_int(cpu_apic_id), aml_arg(0))) ); aml_append(dev, method); @@ -298,11 +299,11 @@ void build_legacy_cpu_hotplug_aml(Aml *ctx, MachineState *machine, /* Arg0 = APIC ID */ method = aml_method(AML_NOTIFY_METHOD, 2, AML_NOTSERIALIZED); for (i = 0; i < apic_ids->len; i++) { - int apic_id = apic_ids->cpus[i].arch_id; + int cpu_apic_id = apic_ids->cpus[i].arch_id; - if_ctx = aml_if(aml_equal(aml_arg(0), aml_int(apic_id))); + if_ctx = aml_if(aml_equal(aml_arg(0), aml_int(cpu_apic_id))); aml_append(if_ctx, - aml_notify(aml_name("CP%.02X", apic_id), aml_arg(1)) + aml_notify(aml_name("CP%.02X", cpu_apic_id), aml_arg(1)) ); aml_append(method, if_ctx); } @@ -319,13 +320,13 @@ void build_legacy_cpu_hotplug_aml(Aml *ctx, MachineState *machine, aml_varpackage(x86ms->apic_id_limit); for (i = 0, apic_idx = 0; i < apic_ids->len; i++) { - int apic_id = apic_ids->cpus[i].arch_id; + int cpu_apic_id = apic_ids->cpus[i].arch_id; - for (; apic_idx < apic_id; apic_idx++) { + for (; apic_idx < cpu_apic_id; apic_idx++) { aml_append(pkg, aml_int(0)); } aml_append(pkg, aml_int(apic_ids->cpus[i].cpu ? 1 : 0)); - apic_idx = apic_id + 1; + apic_idx = cpu_apic_id + 1; } aml_append(sb_scope, aml_name_decl(CPU_ON_BITMAP, pkg)); aml_append(ctx, sb_scope); diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 4d2d40bab5..95199c8900 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -1585,12 +1585,12 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, aml_append(dev, aml_name_decl("_UID", aml_int(bus_num))); aml_append(dev, aml_name_decl("_BBN", aml_int(bus_num))); if (pci_bus_is_cxl(bus)) { - struct Aml *pkg = aml_package(2); + struct Aml *aml_pkg = aml_package(2); aml_append(dev, aml_name_decl("_HID", aml_string("ACPI0016"))); - aml_append(pkg, aml_eisaid("PNP0A08")); - aml_append(pkg, aml_eisaid("PNP0A03")); - aml_append(dev, aml_name_decl("_CID", pkg)); + aml_append(aml_pkg, aml_eisaid("PNP0A08")); + aml_append(aml_pkg, aml_eisaid("PNP0A03")); + aml_append(dev, aml_name_decl("_CID", aml_pkg)); build_cxl_osc_method(dev); } else if (pci_bus_is_express(bus)) { aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08"))); @@ -1783,14 +1783,14 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, Object *pci_host = acpi_get_i386_pci_host(); if (pci_host) { - PCIBus *bus = PCI_HOST_BRIDGE(pci_host)->bus; - Aml *scope = aml_scope("PCI0"); + PCIBus *pbus = PCI_HOST_BRIDGE(pci_host)->bus; + Aml *ascope = aml_scope("PCI0"); /* Scan all PCI buses. Generate tables to support hotplug. */ - build_append_pci_bus_devices(scope, bus); - if (object_property_find(OBJECT(bus), ACPI_PCIHP_PROP_BSEL)) { - build_append_pcihp_slots(scope, bus); + build_append_pci_bus_devices(ascope, pbus); + if (object_property_find(OBJECT(pbus), ACPI_PCIHP_PROP_BSEL)) { + build_append_pcihp_slots(ascope, pbus); } - aml_append(sb_scope, scope); + aml_append(sb_scope, ascope); } } @@ -1842,10 +1842,10 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, bool has_pcnt; Object *pci_host = acpi_get_i386_pci_host(); - PCIBus *bus = PCI_HOST_BRIDGE(pci_host)->bus; + PCIBus *b = PCI_HOST_BRIDGE(pci_host)->bus; scope = aml_scope("\\_SB.PCI0"); - has_pcnt = build_append_notfication_callback(scope, bus); + has_pcnt = build_append_notfication_callback(scope, b); if (has_pcnt) { aml_append(dsdt, scope); } diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c index b753705856..2a90601ac5 100644 --- a/hw/smbios/smbios.c +++ b/hw/smbios/smbios.c @@ -1423,13 +1423,14 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) if (!qemu_opts_validate(opts, qemu_smbios_type8_opts, errp)) { return; } - struct type8_instance *t; - t = g_new0(struct type8_instance, 1); - save_opt(&t->internal_reference, opts, "internal_reference"); - save_opt(&t->external_reference, opts, "external_reference"); - t->connector_type = qemu_opt_get_number(opts, "connector_type", 0); - t->port_type = qemu_opt_get_number(opts, "port_type", 0); - QTAILQ_INSERT_TAIL(&type8, t, next); + struct type8_instance *t8_i; + t8_i = g_new0(struct type8_instance, 1); + save_opt(&t8_i->internal_reference, opts, "internal_reference"); + save_opt(&t8_i->external_reference, opts, "external_reference"); + t8_i->connector_type = qemu_opt_get_number(opts, + "connector_type", 0); + t8_i->port_type = qemu_opt_get_number(opts, "port_type", 0); + QTAILQ_INSERT_TAIL(&type8, t8_i, next); return; case 11: if (!qemu_opts_validate(opts, qemu_smbios_type11_opts, errp)) { @@ -1452,27 +1453,27 @@ void smbios_entry_add(QemuOpts *opts, Error **errp) type17.speed = qemu_opt_get_number(opts, "speed", 0); return; case 41: { - struct type41_instance *t; + struct type41_instance *t41_i; Error *local_err = NULL; if (!qemu_opts_validate(opts, qemu_smbios_type41_opts, errp)) { return; } - t = g_new0(struct type41_instance, 1); - save_opt(&t->designation, opts, "designation"); - t->kind = qapi_enum_parse(&type41_kind_lookup, - qemu_opt_get(opts, "kind"), - 0, &local_err) + 1; - t->kind |= 0x80; /* enabled */ + t41_i = g_new0(struct type41_instance, 1); + save_opt(&t41_i->designation, opts, "designation"); + t41_i->kind = qapi_enum_parse(&type41_kind_lookup, + qemu_opt_get(opts, "kind"), + 0, &local_err) + 1; + t41_i->kind |= 0x80; /* enabled */ if (local_err != NULL) { error_propagate(errp, local_err); - g_free(t); + g_free(t41_i); return; } - t->instance = qemu_opt_get_number(opts, "instance", 1); - save_opt(&t->pcidev, opts, "pcidev"); + t41_i->instance = qemu_opt_get_number(opts, "instance", 1); + save_opt(&t41_i->pcidev, opts, "pcidev"); - QTAILQ_INSERT_TAIL(&type41, t, next); + QTAILQ_INSERT_TAIL(&type41, t41_i, next); return; } default: From 33b3b4aded2eb56d505d563e4788e0654a7e9f2b Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Fri, 22 Sep 2023 16:29:41 +0100 Subject: [PATCH 39/56] hw/intc/arm_gicv3_its: Avoid shadowing variable in do_process_its_cmd() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Avoid shadowing a local variable in do_process_its_cmd(): ../../hw/intc/arm_gicv3_its.c:548:17: warning: declaration of ‘ite’ shadows a previous local [-Wshadow=compatible-local] 548 | ITEntry ite = {}; | ^~~ ../../hw/intc/arm_gicv3_its.c:518:13: note: shadowed declaration is here 518 | ITEntry ite; | ^~~ Signed-off-by: Peter Maydell Message-ID: <20230922152944.3583438-2-peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Eric Auger Signed-off-by: Markus Armbruster --- hw/intc/arm_gicv3_its.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/intc/arm_gicv3_its.c b/hw/intc/arm_gicv3_its.c index 5f552b4d37..52e9aca9c6 100644 --- a/hw/intc/arm_gicv3_its.c +++ b/hw/intc/arm_gicv3_its.c @@ -545,10 +545,10 @@ static ItsCmdResult do_process_its_cmd(GICv3ITSState *s, uint32_t devid, } if (cmdres == CMD_CONTINUE_OK && cmd == DISCARD) { - ITEntry ite = {}; + ITEntry i = {}; /* remove mapping from interrupt translation table */ - ite.valid = false; - return update_ite(s, eventid, &dte, &ite) ? CMD_CONTINUE_OK : CMD_STALL; + i.valid = false; + return update_ite(s, eventid, &dte, &i) ? CMD_CONTINUE_OK : CMD_STALL; } return CMD_CONTINUE_OK; } From b2e7e2048bbe7a82b921d9ca71da9aec1668fcfe Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Fri, 22 Sep 2023 16:29:42 +0100 Subject: [PATCH 40/56] hw/misc/arm_sysctl.c: Avoid shadowing local variable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Avoid shadowing a local variable in arm_sysctl_write(): ../../hw/misc/arm_sysctl.c: In function ‘arm_sysctl_write’: ../../hw/misc/arm_sysctl.c:537:26: warning: declaration of ‘val’ shadows a parameter [-Wshadow=local] 537 | uint32_t val; | ^~~ ../../hw/misc/arm_sysctl.c:388:39: note: shadowed declaration is here 388 | uint64_t val, unsigned size) | ~~~~~~~~~^~~ Signed-off-by: Peter Maydell Message-ID: <20230922152944.3583438-3-peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Eric Auger Signed-off-by: Markus Armbruster --- hw/misc/arm_sysctl.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/misc/arm_sysctl.c b/hw/misc/arm_sysctl.c index 42d4693854..3e4f4b0524 100644 --- a/hw/misc/arm_sysctl.c +++ b/hw/misc/arm_sysctl.c @@ -534,12 +534,12 @@ static void arm_sysctl_write(void *opaque, hwaddr offset, s->sys_cfgstat |= 2; /* error */ } } else { - uint32_t val; + uint32_t data; if (!vexpress_cfgctrl_read(s, dcc, function, site, position, - device, &val)) { + device, &data)) { s->sys_cfgstat |= 2; /* error */ } else { - s->sys_cfgdata = val; + s->sys_cfgdata = data; } } } From 9e2135ee93ad84119642787e3fb8264b6d1c7ef5 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Fri, 22 Sep 2023 16:29:43 +0100 Subject: [PATCH 41/56] hw/arm/smmuv3.c: Avoid shadowing variable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Avoid shadowing a variable in smmuv3_notify_iova(): ../../hw/arm/smmuv3.c: In function ‘smmuv3_notify_iova’: ../../hw/arm/smmuv3.c:1043:23: warning: declaration of ‘event’ shadows a previous local [-Wshadow=local] 1043 | SMMUEventInfo event = {.inval_ste_allowed = true}; | ^~~~~ ../../hw/arm/smmuv3.c:1038:19: note: shadowed declaration is here 1038 | IOMMUTLBEvent event; | ^~~~~ Signed-off-by: Peter Maydell Message-ID: <20230922152944.3583438-4-peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Eric Auger Signed-off-by: Markus Armbruster --- hw/arm/smmuv3.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c index 1e9be8e89a..6f2b2bd45f 100644 --- a/hw/arm/smmuv3.c +++ b/hw/arm/smmuv3.c @@ -1040,8 +1040,8 @@ static void smmuv3_notify_iova(IOMMUMemoryRegion *mr, SMMUv3State *s = sdev->smmu; if (!tg) { - SMMUEventInfo event = {.inval_ste_allowed = true}; - SMMUTransCfg *cfg = smmuv3_get_config(sdev, &event); + SMMUEventInfo eventinfo = {.inval_ste_allowed = true}; + SMMUTransCfg *cfg = smmuv3_get_config(sdev, &eventinfo); SMMUTransTableInfo *tt; if (!cfg) { From 84abccdd39d6c011971a2a41e7b64f7084e28da8 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Fri, 22 Sep 2023 16:29:44 +0100 Subject: [PATCH 42/56] hw/arm/smmuv3-internal.h: Don't use locals in statement macros MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The STE_CTXPTR() and STE_S2TTB() macros both extract two halves of an address from fields in the STE and combine them into a single value to return. The current code for this uses a GCC statement expression. There are two problems with this: (1) The type chosen for the variable in the statement expr is 'unsigned long', which might not be 64 bits (2) the name chosen for the variable causes -Wshadow warnings because it's the same as a variable in use at the callsite: In file included from ../../hw/arm/smmuv3.c:34: ../../hw/arm/smmuv3.c: In function ‘smmu_get_cd’: ../../hw/arm/smmuv3-internal.h:538:23: warning: declaration of ‘addr’ shadows a previous local [-Wshadow=compatible-local] 538 | unsigned long addr; \ | ^~~~ ../../hw/arm/smmuv3.c:339:23: note: in expansion of macro ‘STE_CTXPTR’ 339 | dma_addr_t addr = STE_CTXPTR(ste); | ^~~~~~~~~~ ../../hw/arm/smmuv3.c:339:16: note: shadowed declaration is here 339 | dma_addr_t addr = STE_CTXPTR(ste); | ^~~~ Sidestep both of these problems by just using a single expression rather than a statement expr. For CMD_ADDR, we got the type of the variable right but still run into -Wshadow problems: In file included from ../../hw/arm/smmuv3.c:34: ../../hw/arm/smmuv3.c: In function ‘smmuv3_range_inval’: ../../hw/arm/smmuv3-internal.h:334:22: warning: declaration of ‘addr’ shadows a previous local [-Wshadow=compatible-local] 334 | uint64_t addr = high << 32 | (low << 12); \ | ^~~~ ../../hw/arm/smmuv3.c:1104:28: note: in expansion of macro ‘CMD_ADDR’ 1104 | dma_addr_t end, addr = CMD_ADDR(cmd); | ^~~~~~~~ ../../hw/arm/smmuv3.c:1104:21: note: shadowed declaration is here 1104 | dma_addr_t end, addr = CMD_ADDR(cmd); | ^~~~ so convert it too. CD_TTB has neither problem, but it is the only other macro in the file that uses this pattern, so we convert it also for consistency's sake. We use extract64() rather than extract32() to avoid having to explicitly cast the result to uint64_t. Signed-off-by: Peter Maydell Message-ID: <20230922152944.3583438-5-peter.maydell@linaro.org> Reviewed-by: Eric Auger Signed-off-by: Markus Armbruster --- hw/arm/smmuv3-internal.h | 41 +++++++++++++--------------------------- 1 file changed, 13 insertions(+), 28 deletions(-) diff --git a/hw/arm/smmuv3-internal.h b/hw/arm/smmuv3-internal.h index 6d1c1edab7..648c2e37a2 100644 --- a/hw/arm/smmuv3-internal.h +++ b/hw/arm/smmuv3-internal.h @@ -328,12 +328,9 @@ enum { /* Command completion notification */ #define CMD_TTL(x) extract32((x)->word[2], 8 , 2) #define CMD_TG(x) extract32((x)->word[2], 10, 2) #define CMD_STE_RANGE(x) extract32((x)->word[2], 0 , 5) -#define CMD_ADDR(x) ({ \ - uint64_t high = (uint64_t)(x)->word[3]; \ - uint64_t low = extract32((x)->word[2], 12, 20); \ - uint64_t addr = high << 32 | (low << 12); \ - addr; \ - }) +#define CMD_ADDR(x) \ + (((uint64_t)((x)->word[3]) << 32) | \ + ((extract64((x)->word[2], 12, 20)) << 12)) #define SMMU_FEATURE_2LVL_STE (1 << 0) @@ -533,21 +530,13 @@ typedef struct CD { #define STE_S2S(x) extract32((x)->word[5], 25, 1) #define STE_S2R(x) extract32((x)->word[5], 26, 1) -#define STE_CTXPTR(x) \ - ({ \ - unsigned long addr; \ - addr = (uint64_t)extract32((x)->word[1], 0, 16) << 32; \ - addr |= (uint64_t)((x)->word[0] & 0xffffffc0); \ - addr; \ - }) +#define STE_CTXPTR(x) \ + ((extract64((x)->word[1], 0, 16) << 32) | \ + ((x)->word[0] & 0xffffffc0)) -#define STE_S2TTB(x) \ - ({ \ - unsigned long addr; \ - addr = (uint64_t)extract32((x)->word[7], 0, 16) << 32; \ - addr |= (uint64_t)((x)->word[6] & 0xfffffff0); \ - addr; \ - }) +#define STE_S2TTB(x) \ + ((extract64((x)->word[7], 0, 16) << 32) | \ + ((x)->word[6] & 0xfffffff0)) static inline int oas2bits(int oas_field) { @@ -585,14 +574,10 @@ static inline int pa_range(STE *ste) #define CD_VALID(x) extract32((x)->word[0], 31, 1) #define CD_ASID(x) extract32((x)->word[1], 16, 16) -#define CD_TTB(x, sel) \ - ({ \ - uint64_t hi, lo; \ - hi = extract32((x)->word[(sel) * 2 + 3], 0, 19); \ - hi <<= 32; \ - lo = (x)->word[(sel) * 2 + 2] & ~0xfULL; \ - hi | lo; \ - }) +#define CD_TTB(x, sel) \ + ((extract64((x)->word[(sel) * 2 + 3], 0, 19) << 32) | \ + ((x)->word[(sel) * 2 + 2] & ~0xfULL)) + #define CD_HAD(x, sel) extract32((x)->word[(sel) * 2 + 2], 1, 1) #define CD_TSZ(x, sel) extract32((x)->word[0], (16 * (sel)) + 0, 6) From ce6c368d96ed88c2c8505c825b771e8632e84a88 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Fri, 22 Sep 2023 17:59:21 +0200 Subject: [PATCH 43/56] aspeed/i2c: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Remove superfluous local 'data' variable and use the one define at the top of the routine. This fixes : ../hw/i2c/aspeed_i2c.c: In function ‘aspeed_i2c_bus_recv’: ../hw/i2c/aspeed_i2c.c:315:17: warning: declaration of ‘data’ shadows a previous local [-Wshadow=compatible-local] 315 | uint8_t data; | ^~~~ ../hw/i2c/aspeed_i2c.c:288:13: note: shadowed declaration is here 288 | uint8_t data; | ^~~~ Signed-off-by: Cédric Le Goater Message-ID: <20230922155924.1172019-2-clg@kaod.org> Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Joel Stanley Signed-off-by: Markus Armbruster --- hw/i2c/aspeed_i2c.c | 1 - 1 file changed, 1 deletion(-) diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c index 7275d40749..1037c22b2f 100644 --- a/hw/i2c/aspeed_i2c.c +++ b/hw/i2c/aspeed_i2c.c @@ -312,7 +312,6 @@ static void aspeed_i2c_bus_recv(AspeedI2CBus *bus) SHARED_ARRAY_FIELD_DP32(bus->regs, reg_pool_ctrl, RX_COUNT, i & 0xff); SHARED_ARRAY_FIELD_DP32(bus->regs, reg_cmd, RX_BUFF_EN, 0); } else if (SHARED_ARRAY_FIELD_EX32(bus->regs, reg_cmd, RX_DMA_EN)) { - uint8_t data; /* In new mode, clear how many bytes we RXed */ if (aspeed_i2c_is_new_mode(bus->controller)) { ARRAY_FIELD_DP32(bus->regs, I2CM_DMA_LEN_STS, RX_LEN, 0); From e8874c06a7da70a59c7c7ac2cf0c3612cbc82f6d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Fri, 22 Sep 2023 17:59:22 +0200 Subject: [PATCH 44/56] aspeed: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Remove superfluous local 'irq' variables and use the one define at the top of the routine. This fixes warnings in aspeed_soc_ast2600_realize() such as : ../hw/arm/aspeed_ast2600.c: In function ‘aspeed_soc_ast2600_realize’: ../hw/arm/aspeed_ast2600.c:420:18: warning: declaration of ‘irq’ shadows a previous local [-Wshadow=compatible-local] 420 | qemu_irq irq = aspeed_soc_get_irq(s, ASPEED_DEV_TIMER1 + i); | ^~~ ../hw/arm/aspeed_ast2600.c:312:14: note: shadowed declaration is here 312 | qemu_irq irq; | ^~~ Signed-off-by: Cédric Le Goater Message-ID: <20230922155924.1172019-3-clg@kaod.org> Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Markus Armbruster --- hw/arm/aspeed_ast2600.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/hw/arm/aspeed_ast2600.c b/hw/arm/aspeed_ast2600.c index a8b3a8065a..e122e1c32d 100644 --- a/hw/arm/aspeed_ast2600.c +++ b/hw/arm/aspeed_ast2600.c @@ -388,7 +388,7 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp) aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->timerctrl), 0, sc->memmap[ASPEED_DEV_TIMER1]); for (i = 0; i < ASPEED_TIMER_NR_TIMERS; i++) { - qemu_irq irq = aspeed_soc_get_irq(s, ASPEED_DEV_TIMER1 + i); + irq = aspeed_soc_get_irq(s, ASPEED_DEV_TIMER1 + i); sysbus_connect_irq(SYS_BUS_DEVICE(&s->timerctrl), i, irq); } @@ -413,8 +413,8 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp) } aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->i2c), 0, sc->memmap[ASPEED_DEV_I2C]); for (i = 0; i < ASPEED_I2C_GET_CLASS(&s->i2c)->num_busses; i++) { - qemu_irq irq = qdev_get_gpio_in(DEVICE(&s->a7mpcore), - sc->irqmap[ASPEED_DEV_I2C] + i); + irq = qdev_get_gpio_in(DEVICE(&s->a7mpcore), + sc->irqmap[ASPEED_DEV_I2C] + i); /* The AST2600 I2C controller has one IRQ per bus. */ sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c.busses[i]), 0, irq); } @@ -611,8 +611,8 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp) } aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->i3c), 0, sc->memmap[ASPEED_DEV_I3C]); for (i = 0; i < ASPEED_I3C_NR_DEVICES; i++) { - qemu_irq irq = qdev_get_gpio_in(DEVICE(&s->a7mpcore), - sc->irqmap[ASPEED_DEV_I3C] + i); + irq = qdev_get_gpio_in(DEVICE(&s->a7mpcore), + sc->irqmap[ASPEED_DEV_I3C] + i); /* The AST2600 I3C controller has one IRQ per bus. */ sysbus_connect_irq(SYS_BUS_DEVICE(&s->i3c.devices[i]), 0, irq); } From e407513d285b96594a2710c9b37dff7ce9632f3e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Fri, 22 Sep 2023 17:59:23 +0200 Subject: [PATCH 45/56] aspeed/i3c: Rename variable shadowing a local MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit to fix warning : ../hw/i3c/aspeed_i3c.c: In function ‘aspeed_i3c_realize’: ../hw/i3c/aspeed_i3c.c:1959:17: warning: declaration of ‘dev’ shadows a parameter [-Wshadow=local] 1959 | Object *dev = OBJECT(&s->devices[i]); | ^~~ ../hw/i3c/aspeed_i3c.c:1942:45: note: shadowed declaration is here 1942 | static void aspeed_i3c_realize(DeviceState *dev, Error **errp) | ~~~~~~~~~~~~~^~~ Signed-off-by: Cédric Le Goater Message-ID: <20230922155924.1172019-4-clg@kaod.org> Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Andrew Jeffery Signed-off-by: Markus Armbruster --- hw/misc/aspeed_i3c.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/misc/aspeed_i3c.c b/hw/misc/aspeed_i3c.c index f54f5da522..d1ff617671 100644 --- a/hw/misc/aspeed_i3c.c +++ b/hw/misc/aspeed_i3c.c @@ -296,13 +296,13 @@ static void aspeed_i3c_realize(DeviceState *dev, Error **errp) memory_region_add_subregion(&s->iomem_container, 0x0, &s->iomem); for (i = 0; i < ASPEED_I3C_NR_DEVICES; ++i) { - Object *dev = OBJECT(&s->devices[i]); + Object *i3c_dev = OBJECT(&s->devices[i]); - if (!object_property_set_uint(dev, "device-id", i, errp)) { + if (!object_property_set_uint(i3c_dev, "device-id", i, errp)) { return; } - if (!sysbus_realize(SYS_BUS_DEVICE(dev), errp)) { + if (!sysbus_realize(SYS_BUS_DEVICE(i3c_dev), errp)) { return; } From 62fcc4e872cf01350e4dd395c60c5c726121417f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Fri, 22 Sep 2023 17:59:24 +0200 Subject: [PATCH 46/56] aspeed/timer: Clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 8137355e850f ("aspeed/timer: Fix behaviour running Linux") introduced a MAX() expression to calculate the next timer deadline : return calculate_time(t, MAX(MAX(t->match[0], t->match[1]), 0)); The second MAX() is not necessary since the compared values are an unsigned and 0. Simply remove it and fix warning : ../hw/timer/aspeed_timer.c: In function ‘calculate_next’: ../include/qemu/osdep.h:396:31: warning: declaration of ‘_a’ shadows a previous local [-Wshadow=compatible-local] 396 | typeof(1 ? (a) : (b)) _a = (a), _b = (b); \ | ^~ ../hw/timer/aspeed_timer.c:170:12: note: in expansion of macro ‘MAX’ 170 | next = MAX(MAX(calculate_match(t, 0), calculate_match(t, 1)), 0); | ^~~ ../hw/timer/aspeed_timer.c:170:16: note: in expansion of macro ‘MAX’ 170 | next = MAX(MAX(calculate_match(t, 0), calculate_match(t, 1)), 0); | ^~~ /home/legoater/work/qemu/qemu-aspeed.git/include/qemu/osdep.h:396:31: note: shadowed declaration is here 396 | typeof(1 ? (a) : (b)) _a = (a), _b = (b); \ | ^~ ../hw/timer/aspeed_timer.c:170:12: note: in expansion of macro ‘MAX’ 170 | next = MAX(MAX(calculate_match(t, 0), calculate_match(t, 1)), 0); | ^~~ Cc: Joel Stanley Cc: Andrew Jeffery Signed-off-by: Cédric Le Goater Message-ID: <20230922155924.1172019-5-clg@kaod.org> Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Markus Armbruster --- hw/timer/aspeed_timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/timer/aspeed_timer.c b/hw/timer/aspeed_timer.c index 9c20b3d6ad..72161f07bb 100644 --- a/hw/timer/aspeed_timer.c +++ b/hw/timer/aspeed_timer.c @@ -167,7 +167,7 @@ static uint64_t calculate_next(struct AspeedTimer *t) qemu_set_irq(t->irq, t->level); } - next = MAX(MAX(calculate_match(t, 0), calculate_match(t, 1)), 0); + next = MAX(calculate_match(t, 0), calculate_match(t, 1)); t->start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); return calculate_time(t, next); From a082739eb390d2aad679b5efa9afc40cfa2a496d Mon Sep 17 00:00:00 2001 From: Peter Xu Date: Fri, 22 Sep 2023 12:04:10 -0400 Subject: [PATCH 47/56] intel_iommu: Fix shadow local variables on "size" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch fixes the warning of shadowed local variable: ../hw/i386/intel_iommu.c: In function ‘vtd_address_space_unmap’: ../hw/i386/intel_iommu.c:3773:18: warning: declaration of ‘size’ shadows a previous local [-Wshadow=compatible-local] 3773 | uint64_t size = mask + 1; | ^~~~ ../hw/i386/intel_iommu.c:3747:12: note: shadowed declaration is here 3747 | hwaddr size, remain; | ^~~~ Cc: Jason Wang Cc: Eric Auger Cc: Michael S. Tsirkin Cc: Markus Armbruster Signed-off-by: Peter Xu Message-ID: <20230922160410.138786-1-peterx@redhat.com> Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Michael S. Tsirkin Signed-off-by: Markus Armbruster --- hw/i386/intel_iommu.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index c0ce896668..2c832ab68b 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -3744,7 +3744,7 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, /* Unmap the whole range in the notifier's scope. */ static void vtd_address_space_unmap(VTDAddressSpace *as, IOMMUNotifier *n) { - hwaddr size, remain; + hwaddr total, remain; hwaddr start = n->start; hwaddr end = n->end; IntelIOMMUState *s = as->iommu_state; @@ -3765,7 +3765,7 @@ static void vtd_address_space_unmap(VTDAddressSpace *as, IOMMUNotifier *n) } assert(start <= end); - size = remain = end - start + 1; + total = remain = end - start + 1; while (remain >= VTD_PAGE_SIZE) { IOMMUTLBEvent event; @@ -3793,10 +3793,10 @@ static void vtd_address_space_unmap(VTDAddressSpace *as, IOMMUNotifier *n) trace_vtd_as_unmap_whole(pci_bus_num(as->bus), VTD_PCI_SLOT(as->devfn), VTD_PCI_FUNC(as->devfn), - n->start, size); + n->start, total); map.iova = n->start; - map.size = size - 1; /* Inclusive */ + map.size = total - 1; /* Inclusive */ iova_tree_remove(as->iova_tree, map); } From 3cc9fe177f412494f084923149338c51dd232b9b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Date: Fri, 22 Sep 2023 17:06:43 +0100 Subject: [PATCH 48/56] crypto: remove shadowed 'ret' variable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Both instances of 'ret' are used to store a gnutls API return code. Signed-off-by: Daniel P. Berrangé Message-ID: <20230922160644.438631-2-berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Markus Armbruster --- crypto/tls-cipher-suites.c | 1 - 1 file changed, 1 deletion(-) diff --git a/crypto/tls-cipher-suites.c b/crypto/tls-cipher-suites.c index 5e4f597464..d0df4badc0 100644 --- a/crypto/tls-cipher-suites.c +++ b/crypto/tls-cipher-suites.c @@ -52,7 +52,6 @@ GByteArray *qcrypto_tls_cipher_suites_get_data(QCryptoTLSCipherSuites *obj, byte_array = g_byte_array_new(); for (i = 0;; i++) { - int ret; unsigned idx; const char *name; IANA_TLS_CIPHER cipher; From 0d57919acf27ca343981f69cec33463887e0a716 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Date: Fri, 22 Sep 2023 17:06:44 +0100 Subject: [PATCH 49/56] seccomp: avoid shadowing of 'action' variable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is confusing as one 'action' variable is used for storing a SCMP_ enum value, while the other 'action' variable is used for storing a SECCOMP_ enum value. Signed-off-by: Daniel P. Berrangé Message-ID: <20230922160644.438631-3-berrange@redhat.com> Reviewed-by: Markus Armbruster Signed-off-by: Markus Armbruster --- softmmu/qemu-seccomp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/softmmu/qemu-seccomp.c b/softmmu/qemu-seccomp.c index d66a2a1226..4d7439e7f7 100644 --- a/softmmu/qemu-seccomp.c +++ b/softmmu/qemu-seccomp.c @@ -283,9 +283,9 @@ static uint32_t qemu_seccomp_update_action(uint32_t action) if (action == SCMP_ACT_TRAP) { static int kill_process = -1; if (kill_process == -1) { - uint32_t action = SECCOMP_RET_KILL_PROCESS; + uint32_t testaction = SECCOMP_RET_KILL_PROCESS; - if (qemu_seccomp(SECCOMP_GET_ACTION_AVAIL, 0, &action) == 0) { + if (qemu_seccomp(SECCOMP_GET_ACTION_AVAIL, 0, &testaction) == 0) { kill_process = 1; } else { kill_process = 0; From e161785c05c8a96962a0ea87a3abefe158d8b035 Mon Sep 17 00:00:00 2001 From: Eric Blake Date: Fri, 22 Sep 2023 15:50:20 -0500 Subject: [PATCH 50/56] qemu-nbd: changes towards enabling -Wshadow=local MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Address all compiler complaints from -Wshadow in qemu-nbd. Several instances of 'int ret' became shadows when commit 4fbec260 added 'ret' at a higher scope in main. More interesting was the 'void *ret' capturing the result of a pthread; where we were conceptually doing '(void*)(intptr_t)EXIT_FAILURE != NULL' which just feels wrong (even though it happens to compile correctly), so it was worth a better cleanup. Signed-off-by: Eric Blake Message-ID: <20230922205019.2755352-2-eblake@redhat.com> Reviewed-by: Daniel P. Berrangé Signed-off-by: Markus Armbruster --- qemu-nbd.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/qemu-nbd.c b/qemu-nbd.c index 70aa3c487a..54faa87a0c 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -939,7 +939,6 @@ int main(int argc, char **argv) g_autoptr(GError) err = NULL; int stderr_fd[2]; pid_t pid; - int ret; if (!g_unix_open_pipe(stderr_fd, FD_CLOEXEC, &err)) { error_report("Error setting up communication pipe: %s", @@ -1172,7 +1171,6 @@ int main(int argc, char **argv) if (opts.device) { #if HAVE_NBD_DEVICE - int ret; ret = pthread_create(&client_thread, NULL, nbd_client_thread, &opts); if (ret != 0) { error_report("Failed to create client thread: %s", strerror(ret)); @@ -1219,9 +1217,10 @@ int main(int argc, char **argv) qemu_opts_del(sn_opts); if (opts.device) { - void *ret; - pthread_join(client_thread, &ret); - exit(ret != NULL); + void *result; + pthread_join(client_thread, &result); + ret = (intptr_t)result; + exit(ret); } else { exit(EXIT_SUCCESS); } From 010f5557ab1d5d14c3ffc023387289c68b889cc9 Mon Sep 17 00:00:00 2001 From: Alistair Francis Date: Mon, 25 Sep 2023 14:30:20 +1000 Subject: [PATCH 51/56] hw/riscv: opentitan: Fixup local variables shadowing Local variables shadowing other local variables or parameters make the code needlessly hard to understand. Bugs love to hide in such code. Evidence: "[PATCH v3 1/7] migration/rdma: Fix save_page method to fail on polling error". This patch removes the local variable shadowing. Tested by adding: --extra-cflags='-Wshadow=local -Wno-error=shadow=local -Wno-error=shadow=compatible-local' To configure Signed-off-by: Alistair Francis Message-ID: <20230925043023.71448-2-alistair.francis@wdc.com> Reviewed-by: Daniel Henrique Barboza Signed-off-by: Markus Armbruster --- hw/riscv/opentitan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/riscv/opentitan.c b/hw/riscv/opentitan.c index 6a2fcc4ade..436503f1ba 100644 --- a/hw/riscv/opentitan.c +++ b/hw/riscv/opentitan.c @@ -227,7 +227,7 @@ static void lowrisc_ibex_soc_realize(DeviceState *dev_soc, Error **errp) IRQ_M_TIMER)); /* SPI-Hosts */ - for (int i = 0; i < OPENTITAN_NUM_SPI_HOSTS; ++i) { + for (i = 0; i < OPENTITAN_NUM_SPI_HOSTS; ++i) { dev = DEVICE(&(s->spi_host[i])); if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi_host[i]), errp)) { return; From 29332994d8ebcbfad0748017c5151ed69e119212 Mon Sep 17 00:00:00 2001 From: Alistair Francis Date: Mon, 25 Sep 2023 14:30:21 +1000 Subject: [PATCH 52/56] target/riscv: cpu: Fixup local variables shadowing Local variables shadowing other local variables or parameters make the code needlessly hard to understand. Bugs love to hide in such code. Evidence: "[PATCH v3 1/7] migration/rdma: Fix save_page method to fail on polling error". This patch removes the local variable shadowing. Tested by adding: --extra-cflags='-Wshadow=local -Wno-error=shadow=local -Wno-error=shadow=compatible-local' To configure Signed-off-by: Alistair Francis Message-ID: <20230925043023.71448-3-alistair.francis@wdc.com> Reviewed-by: Daniel Henrique Barboza Signed-off-by: Markus Armbruster --- target/riscv/cpu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index f227c7664e..4140899c52 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -704,7 +704,7 @@ static void riscv_cpu_dump_state(CPUState *cs, FILE *f, int flags) CSR_MPMMASK, }; - for (int i = 0; i < ARRAY_SIZE(dump_csrs); ++i) { + for (i = 0; i < ARRAY_SIZE(dump_csrs); ++i) { int csrno = dump_csrs[i]; target_ulong val = 0; RISCVException res = riscv_csrrw_debug(env, csrno, &val, 0, 0); @@ -747,7 +747,7 @@ static void riscv_cpu_dump_state(CPUState *cs, FILE *f, int flags) CSR_VTYPE, CSR_VLENB, }; - for (int i = 0; i < ARRAY_SIZE(dump_rvv_csrs); ++i) { + for (i = 0; i < ARRAY_SIZE(dump_rvv_csrs); ++i) { int csrno = dump_rvv_csrs[i]; target_ulong val = 0; RISCVException res = riscv_csrrw_debug(env, csrno, &val, 0, 0); From f3f65c4022c4af793eecf8be9872510f83f98740 Mon Sep 17 00:00:00 2001 From: Alistair Francis Date: Mon, 25 Sep 2023 14:30:22 +1000 Subject: [PATCH 53/56] target/riscv: vector_helper: Fixup local variables shadowing Local variables shadowing other local variables or parameters make the code needlessly hard to understand. Bugs love to hide in such code. Evidence: "[PATCH v3 1/7] migration/rdma: Fix save_page method to fail on polling error". This patch removes the local variable shadowing. Tested by adding: --extra-cflags='-Wshadow=local -Wno-error=shadow=local -Wno-error=shadow=compatible-local' To configure Signed-off-by: Alistair Francis Message-ID: <20230925043023.71448-4-alistair.francis@wdc.com> Reviewed-by: Daniel Henrique Barboza Signed-off-by: Markus Armbruster --- target/riscv/vector_helper.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 3fb05cc3d6..cba02c1320 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -516,7 +516,7 @@ ProbeSuccess: k++; continue; } - target_ulong addr = base + ((i * nf + k) << log2_esz); + addr = base + ((i * nf + k) << log2_esz); ldst_elem(env, adjust_addr(env, addr), i + k * max_elems, vd, ra); k++; } @@ -4791,9 +4791,10 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ uint32_t total_elems = vext_get_total_elems(env, desc, esz); \ uint32_t vta = vext_vta(desc); \ uint32_t vma = vext_vma(desc); \ - target_ulong i_max, i; \ + target_ulong i_max, i_min, i; \ \ - i_max = MAX(MIN(s1 < vlmax ? vlmax - s1 : 0, vl), env->vstart); \ + i_min = MIN(s1 < vlmax ? vlmax - s1 : 0, vl); \ + i_max = MAX(i_min, env->vstart); \ for (i = env->vstart; i < i_max; ++i) { \ if (!vm && !vext_elem_mask(v0, i)) { \ /* set masked-off elements to 1s */ \ From 5567fa825ab9bdc4688308bea7816e2f969b65c3 Mon Sep 17 00:00:00 2001 From: Alistair Francis Date: Mon, 25 Sep 2023 14:30:23 +1000 Subject: [PATCH 54/56] softmmu/device_tree: Fixup local variables shadowing Local variables shadowing other local variables or parameters make the code needlessly hard to understand. Bugs love to hide in such code. Evidence: "[PATCH v3 1/7] migration/rdma: Fix save_page method to fail on polling error". This patch removes the local variable shadowing. Tested by adding: --extra-cflags='-Wshadow=local -Wno-error=shadow=local -Wno-error=shadow=compatible-local' To configure Signed-off-by: Alistair Francis Message-ID: <20230925043023.71448-5-alistair.francis@wdc.com> Reviewed-by: Daniel Henrique Barboza Signed-off-by: Markus Armbruster --- softmmu/device_tree.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/softmmu/device_tree.c b/softmmu/device_tree.c index 30aa3aea9f..eb5166ca36 100644 --- a/softmmu/device_tree.c +++ b/softmmu/device_tree.c @@ -418,9 +418,9 @@ int qemu_fdt_setprop_string_array(void *fdt, const char *node_path, } p = str = g_malloc0(total_len); for (i = 0; i < len; i++) { - int len = strlen(array[i]) + 1; - pstrcpy(p, len, array[i]); - p += len; + int offset = strlen(array[i]) + 1; + pstrcpy(p, offset, array[i]); + p += offset; } ret = qemu_fdt_setprop(fdt, node_path, prop, str, total_len); From f193d0bde70e1be004cc4aba5aaf3ac9c459d156 Mon Sep 17 00:00:00 2001 From: Klaus Jensen Date: Mon, 25 Sep 2023 08:05:05 +0200 Subject: [PATCH 55/56] hw/nvme: Clean up local variable shadowing in nvme_ns_init() Fix local variable shadowing in nvme_ns_init(). Reported-by: Markus Armbruster Signed-off-by: Klaus Jensen Message-ID: <20230925-fix-local-shadowing-v1-1-3a1172132377@samsung.com> Reviewed-by: Jesper Wendel Devantier Signed-off-by: Markus Armbruster --- hw/nvme/ns.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/nvme/ns.c b/hw/nvme/ns.c index 44aba8f4d9..0eabcf5cf5 100644 --- a/hw/nvme/ns.c +++ b/hw/nvme/ns.c @@ -107,7 +107,7 @@ static int nvme_ns_init(NvmeNamespace *ns, Error **errp) ns->pif = ns->params.pif; - static const NvmeLBAF lbaf[16] = { + static const NvmeLBAF defaults[16] = { [0] = { .ds = 9 }, [1] = { .ds = 9, .ms = 8 }, [2] = { .ds = 9, .ms = 16 }, @@ -120,7 +120,7 @@ static int nvme_ns_init(NvmeNamespace *ns, Error **errp) ns->nlbaf = 8; - memcpy(&id_ns->lbaf, &lbaf, sizeof(lbaf)); + memcpy(&id_ns->lbaf, &defaults, sizeof(defaults)); for (i = 0; i < ns->nlbaf; i++) { NvmeLBAF *lbaf = &id_ns->lbaf[i]; From 4dba9141f97e66fdd920df37c4aa7b2ffe0d6a4a Mon Sep 17 00:00:00 2001 From: Laurent Vivier Date: Mon, 25 Sep 2023 10:44:55 +0200 Subject: [PATCH 56/56] disas/m68k: clean up local variable shadowing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix following warnings .../disas/m68k.c: In function ‘print_insn_arg’: .../disas/m68k.c:1635:13: warning: declaration of ‘val’ shadows a previous local [-Wshadow=compatible-local] 1635 | int val = fetch_arg (buffer, place, 5, info); | ^~~ .../disas/m68k.c:1093:7: note: shadowed declaration is here 1093 | int val = 0; | ^~~ Signed-off-by: Laurent Vivier Message-ID: <20230925084455.395150-1-laurent@vivier.eu> Reviewed-by: Thomas Huth Signed-off-by: Markus Armbruster --- disas/m68k.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/disas/m68k.c b/disas/m68k.c index aefaecfbd6..1f16e295ab 100644 --- a/disas/m68k.c +++ b/disas/m68k.c @@ -1632,10 +1632,10 @@ print_insn_arg (const char *d, case '2': case '3': { - int val = fetch_arg (buffer, place, 5, info); + int reg = fetch_arg (buffer, place, 5, info); const char *name = 0; - switch (val) + switch (reg) { case 2: name = "%tt0"; break; case 3: name = "%tt1"; break; @@ -1655,12 +1655,12 @@ print_insn_arg (const char *d, int break_reg = ((buffer[3] >> 2) & 7); (*info->fprintf_func) - (info->stream, val == 0x1c ? "%%bad%d" : "%%bac%d", + (info->stream, reg == 0x1c ? "%%bad%d" : "%%bac%d", break_reg); } break; default: - (*info->fprintf_func) (info->stream, "", val); + (*info->fprintf_func) (info->stream, "", reg); } if (name) (*info->fprintf_func) (info->stream, "%s", name);