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selftests/bpf: Set CONFIG_PACKET=y for selftests

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BPF selftest fails to build with below error:

  CLNG-BPF [test_progs] lsm_cgroup.bpf.o
progs/lsm_cgroup.c:105:21: error: variable has incomplete type 'struct sockaddr_ll'
  105 |         struct sockaddr_ll sa = {};
      |                            ^
progs/lsm_cgroup.c:105:9: note: forward declaration of 'struct sockaddr_ll'
  105 |         struct sockaddr_ll sa = {};
      |                ^
1 error generated.

lsm_cgroup selftest requires sockaddr_ll structure which is not there
in vmlinux.h when the kernel is built with CONFIG_PACKET=m.

Enabling CONFIG_PACKET=y ensures that sockaddr_ll is available in vmlinux,
allowing it to be captured in the generated vmlinux.h for bpf selftests.

Reported-by: Sachin P Bappalige <sachinpb@linux.ibm.com>
Signed-off-by: Saket Kumar Bhaskar <skb99@linux.ibm.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20250707071735.705137-1-skb99@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Saket Kumar Bhaskar 2025-07-07 12:47:35 +05:30 committed by Alexei Starovoitov
parent 0074250c35
commit 0f626c98fd
1 changed files with 1 additions and 0 deletions
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tools/testing/selftests/bpf/config
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@ -105,6 +105,7 @@ CONFIG_IP_NF_IPTABLES=y
CONFIG_IP6_NF_IPTABLES=y
CONFIG_IP6_NF_FILTER=y
CONFIG_NF_NAT=y
CONFIG_PACKET=y
CONFIG_RC_CORE=y
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y