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fw_cfg: Dumb down fw_cfg_add_*() not to return success / failure 

No caller is checking the value, so all errors get ignored, usually
silently.  assert() instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Markus Armbruster 2013-01-16 14:50:23 +01:00 committed by Blue Swirl
parent f6e3534327
commit 4cad3867b6
2 changed files with 24 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
hw/fw_cfg.c
View File

@ -373,71 +373,64 @@ static const VMStateDescription vmstate_fw_cfg = {
}
};
int fw_cfg_add_bytes(FWCfgState *s, uint16_t key, uint8_t *data, uint32_t len)
void fw_cfg_add_bytes(FWCfgState *s, uint16_t key, uint8_t *data, uint32_t len)
{
int arch = !!(key & FW_CFG_ARCH_LOCAL);
key &= FW_CFG_ENTRY_MASK;
if (key >= FW_CFG_MAX_ENTRY)
return 0;
assert(key < FW_CFG_MAX_ENTRY);
s->entries[arch][key].data = data;
s->entries[arch][key].len = len;
return 1;
}
int fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value)
void fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value)
{
uint16_t *copy;
copy = g_malloc(sizeof(value));
*copy = cpu_to_le16(value);
return fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value));
fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value));
}
int fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value)
void fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value)
{
uint32_t *copy;
copy = g_malloc(sizeof(value));
*copy = cpu_to_le32(value);
return fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value));
fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value));
}
int fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value)
void fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value)
{
uint64_t *copy;
copy = g_malloc(sizeof(value));
*copy = cpu_to_le64(value);
return fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value));
fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value));
}
int fw_cfg_add_callback(FWCfgState *s, uint16_t key, FWCfgCallback callback,
void *callback_opaque, uint8_t *data, size_t len)
void fw_cfg_add_callback(FWCfgState *s, uint16_t key, FWCfgCallback callback,
void *callback_opaque, uint8_t *data, size_t len)
{
int arch = !!(key & FW_CFG_ARCH_LOCAL);
if (!(key & FW_CFG_WRITE_CHANNEL))
return 0;
assert(key & FW_CFG_WRITE_CHANNEL);
key &= FW_CFG_ENTRY_MASK;
if (key >= FW_CFG_MAX_ENTRY || len > 65535)
return 0;
assert(key < FW_CFG_MAX_ENTRY && len <= 65535);
s->entries[arch][key].data = data;
s->entries[arch][key].len = len;
s->entries[arch][key].callback_opaque = callback_opaque;
s->entries[arch][key].callback = callback;
return 1;
}
int fw_cfg_add_file(FWCfgState *s, const char *filename, uint8_t *data,
uint32_t len)
void fw_cfg_add_file(FWCfgState *s, const char *filename, uint8_t *data,
uint32_t len)
{
int i, index;
@ -448,10 +441,7 @@ int fw_cfg_add_file(FWCfgState *s, const char *filename, uint8_t *data,
}
index = be32_to_cpu(s->files->count);
if (index == FW_CFG_FILE_SLOTS) {
fprintf(stderr, "fw_cfg: out of file slots\n");
return 0;
}
assert(index < FW_CFG_FILE_SLOTS);
fw_cfg_add_bytes(s, FW_CFG_FILE_FIRST + index, data, len);
@ -460,7 +450,7 @@ int fw_cfg_add_file(FWCfgState *s, const char *filename, uint8_t *data,
for (i = 0; i < index; i++) {
if (strcmp(s->files->f[index].name, s->files->f[i].name) == 0) {
trace_fw_cfg_add_file_dupe(s, s->files->f[index].name);
return 1;
return;
}
}
@ -469,7 +459,6 @@ int fw_cfg_add_file(FWCfgState *s, const char *filename, uint8_t *data,
trace_fw_cfg_add_file(s, index, s->files->f[index].name, len);
s->files->count = cpu_to_be32(index+1);
return 1;
}
static void fw_cfg_machine_ready(struct Notifier *n, void *data)

16
hw/fw_cfg.h
View File

@ -54,14 +54,14 @@ typedef struct FWCfgFiles {
typedef void (*FWCfgCallback)(void *opaque, uint8_t *data);
typedef struct FWCfgState FWCfgState;
int fw_cfg_add_bytes(FWCfgState *s, uint16_t key, uint8_t *data, uint32_t len);
int fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value);
int fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value);
int fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value);
int fw_cfg_add_callback(FWCfgState *s, uint16_t key, FWCfgCallback callback,
void *callback_opaque, uint8_t *data, size_t len);
int fw_cfg_add_file(FWCfgState *s, const char *filename, uint8_t *data,
uint32_t len);
void fw_cfg_add_bytes(FWCfgState *s, uint16_t key, uint8_t *data, uint32_t len);
void fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value);
void fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value);
void fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value);
void fw_cfg_add_callback(FWCfgState *s, uint16_t key, FWCfgCallback callback,
void *callback_opaque, uint8_t *data, size_t len);
void fw_cfg_add_file(FWCfgState *s, const char *filename, uint8_t *data,
uint32_t len);
FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t data_port,
hwaddr crl_addr, hwaddr data_addr);