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| author | Oliver Crumrine <ozlinuxc@gmail.com> | 2024-02-09 14:41:22 -0500 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2024-02-13 15:41:17 -0800 |
| commit | 32e18e7688c6847b0c9db073aafb00639ecf576c (patch) | |
| tree | dd578e3b4d1a6678286ee3b1f1fcbc70b60c411d /kernel/bpf/cgroup.c | |
| parent | 2c21a0f67c8ce334b8a58332e8c2d71694bef0ab (diff) | |
| download | lwn-32e18e7688c6847b0c9db073aafb00639ecf576c.tar.gz lwn-32e18e7688c6847b0c9db073aafb00639ecf576c.zip | |
bpf: remove check in __cgroup_bpf_run_filter_skb
Originally, this patch removed a redundant check in
BPF_CGROUP_RUN_PROG_INET_EGRESS, as the check was already being done in
the function it called, __cgroup_bpf_run_filter_skb. For v2, it was
reccomended that I remove the check from __cgroup_bpf_run_filter_skb,
and add the checks to the other macro that calls that function,
BPF_CGROUP_RUN_PROG_INET_INGRESS.
To sum it up, checking that the socket exists and that it is a full
socket is now part of both macros BPF_CGROUP_RUN_PROG_INET_EGRESS and
BPF_CGROUP_RUN_PROG_INET_INGRESS, and it is no longer part of the
function they call, __cgroup_bpf_run_filter_skb.
v3->v4: Fixed weird merge conflict.
v2->v3: Sent to bpf-next instead of generic patch
v1->v2: Addressed feedback about where check should be removed.
Signed-off-by: Oliver Crumrine <ozlinuxc@gmail.com>
Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/7lv62yiyvmj5a7eozv2iznglpkydkdfancgmbhiptrgvgan5sy@3fl3onchgdz3
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'kernel/bpf/cgroup.c')
| -rw-r--r-- | kernel/bpf/cgroup.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/kernel/bpf/cgroup.c b/kernel/bpf/cgroup.c index 98e0e3835b28..5a568bbbeaeb 100644 --- a/kernel/bpf/cgroup.c +++ b/kernel/bpf/cgroup.c @@ -1364,9 +1364,6 @@ int __cgroup_bpf_run_filter_skb(struct sock *sk, struct cgroup *cgrp; int ret; - if (!sk || !sk_fullsock(sk)) - return 0; - if (sk->sk_family != AF_INET && sk->sk_family != AF_INET6) return 0; |