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qemu-nbd: Rename 'exp' variable clashing with math::exp() symbol 

The use of a variable named 'exp' prevents includes to import <math.h>.

Rename it to avoid:

  qemu-nbd.c:64:19: error: ‘exp’ redeclared as different kind of symbol
   static NBDExport *exp;
                     ^~~
  In file included from /usr/include/features.h:428,
                   from /usr/include/bits/libc-header-start.h:33,
                   from /usr/include/stdint.h:26,
                   from /usr/lib/gcc/x86_64-redhat-linux/8/include/stdint.h:9,
                   from /source/qemu/include/qemu/osdep.h:80,
                   from /source/qemu/qemu-nbd.c:19:
  /usr/include/bits/mathcalls.h:95:1: note: previous declaration of ‘exp’ was here
    __MATHCALL_VEC (exp,, (_Mdouble_ __x));
    ^~~~~~~~~~~~~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190111163519.11457-1-philmd@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2019-01-11 17:35:19 +01:00 committed by Eric Blake
parent 14da540f2a
commit 9d97658020
1 changed files with 10 additions and 9 deletions
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19
qemu-nbd.c
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@ -61,7 +61,7 @@
#define MBR_SIZE 512
static NBDExport *exp;
static NBDExport *export;
static int verbose;
static char *srcpath;
static SocketAddress *saddr;
@ -335,7 +335,7 @@ static int nbd_can_accept(void)
return state == RUNNING && nb_fds < shared;
}
static void nbd_export_closed(NBDExport *exp)
static void nbd_export_closed(NBDExport *export)
{
assert(state == TERMINATING);
state = TERMINATED;
@ -1015,10 +1015,11 @@ int main(int argc, char **argv)
}
}
exp = nbd_export_new(bs, dev_offset, fd_size, nbdflags, nbd_export_closed,
writethrough, NULL, &error_fatal);
nbd_export_set_name(exp, export_name);
nbd_export_set_description(exp, export_description);
export = nbd_export_new(bs, dev_offset, fd_size, nbdflags,
nbd_export_closed, writethrough,
NULL, &error_fatal);
nbd_export_set_name(export, export_name);
nbd_export_set_description(export, export_description);
if (device) {
#if HAVE_NBD_DEVICE
@ -1055,9 +1056,9 @@ int main(int argc, char **argv)
main_loop_wait(false);
if (state == TERMINATE) {
state = TERMINATING;
nbd_export_close(exp);
nbd_export_put(exp);
exp = NULL;
nbd_export_close(export);
nbd_export_put(export);
export = NULL;
}
} while (state != TERMINATED);