From: John Hubbard <jhubbard@xxxxxxxxxx> Linux 6.6 does not have an opt_ipproto_off variable in gro.c at all (it was added in later kernel versions), so attempting to initialize one breaks the build. Fixes: c80d53c484e8 ("selftests/net: fix uninitialized variables") Cc: <stable@xxxxxxxxxxxxxxx> # 6.6 Reported-by: Ignat Korchagin <ignat@xxxxxxxxxxxxxx> Closes: https://lore.kernel.org/all/8B1717DB-8C4A-47EE-B28C-170B630C4639@xxxxxxxxxxxxxx/#t Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/net/gro.c | 3 --- 1 file changed, 3 deletions(-) --- a/tools/testing/selftests/net/gro.c +++ b/tools/testing/selftests/net/gro.c @@ -113,9 +113,6 @@ static void setup_sock_filter(int fd) next_off = offsetof(struct ipv6hdr, nexthdr); ipproto_off = ETH_HLEN + next_off; - /* Overridden later if exthdrs are used: */ - opt_ipproto_off = ipproto_off; - if (strcmp(testname, "ip") == 0) { if (proto == PF_INET) optlen = sizeof(struct ip_timestamp); Patches currently in stable-queue which might be from jhubbard@xxxxxxxxxx are queue-6.6/selftests-net-fix-gro.c-compilation-failure-due-to-non-existent-opt_ipproto_off.patch