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(parent: 734d535) | patch
bpf: NULL pointer check is not needed in BPF_CGROUP_RUN_PROG_INET_SOCK
authorYafang Shao <laoar.shao@gmail.com>
Fri, 23 Feb 2018 06:58:41 +0000 (14:58 +0800)
committerDaniel Borkmann <daniel@iogearbox.net>
Fri, 23 Feb 2018 15:23:11 +0000 (16:23 +0100)
commit1daa5f5f7e3955ee1123e794f9e2b53bd1745eef
treef72ef4109f87aad9951bf5d3641db327374ea071tree | snapshot
parent734d535bce1a9edc8fbdad9f767883a1b5d70175commit | diff
bpf: NULL pointer check is not needed in BPF_CGROUP_RUN_PROG_INET_SOCK

sk is already allocated in inet_create/inet6_create, hence when
BPF_CGROUP_RUN_PROG_INET_SOCK is executed sk will never be NULL.

The logic is as bellow,
sk = sk_alloc();
if (!sk)
goto out;
BPF_CGROUP_RUN_PROG_INET_SOCK(sk);

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
include/linux/bpf-cgroup.h diff | blob | history
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