starred/qemu
1
0
Fork 0
mirror of https://github.com/qemu/qemu.git synced 2026-07-08 17:46:10 +00:00
Code Issues 380 Packages Projects Releases Wiki Activity

net/af-xdp.c: maybe-uninitialized warning with gcov build on ubuntu2404

Browse Source 
This is a false positive, fixed by explicitly initializing
variable to NULL. Variable is always initialized during the for loop
above, which is guaranteed to run since queues >= 1.
This is correctly detected for normal builds, but not for gcov builds.

In function ‘af_xdp_read_poll’,
    inlined from ‘net_init_af_xdp’ at ../net/af-xdp.c:546:5:
../net/af-xdp.c:78:10: error: ‘s’ may be used uninitialized [-Werror=maybe-uninitialized]
   78 |     if (s->read_poll != enable) {
      |         ~^~~~~~~~~~~
../net/af-xdp.c: In function ‘net_init_af_xdp’:
../net/af-xdp.c:461:17: note: ‘s’ was declared here
  461 |     AFXDPState *s;
      |

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
Link: https://lore.kernel.org/qemu-devel/20260610192222.2709135-2-pierrick.bouvier@oss.qualcomm.com
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
This commit is contained in:
Pierrick Bouvier
2026-06-10 12:22:18 -07:00
parent 2f28d34ea0
commit 71fe290540
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
net/af-xdp.c
View File

@@ -458,7 +458,7 @@ int net_init_af_xdp(const Netdev *netdev,
g_autofree int *sock_fds = NULL;
int i, queues;
Error *err = NULL;
AFXDPState *s;
AFXDPState *s = NULL;
bool inhibit;
ifindex = if_nametoindex(opts->ifname);