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bpf: xfrm: drop dead NULL check in bpf_xdp_get_xfrm_state()

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As KF_TRUSTED_ARGS is now considered the default for all kfuncs, the
opts parameter in bpf_xdp_get_xfrm_state() can never be NULL. Verifier
will detect this at load time and will not allow passing NULL to this
function. This matches the documentation above the kfunc that says this
parameter (opts) Cannot be NULL.

Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Link: https://lore.kernel.org/r/20260102180038.2708325-5-puranjay@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Puranjay Mohan
2026-01-02 10:00:30 -08:00
committed by Alexei Starovoitov
parent bddaf9adda
commit cd1d609491
1 changed files with 1 additions and 1 deletions
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2
net/xfrm/xfrm_state_bpf.c
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@@ -68,7 +68,7 @@ bpf_xdp_get_xfrm_state(struct xdp_md *ctx, struct bpf_xfrm_state_opts *opts, u32
struct net *net = dev_net(xdp->rxq->dev);
struct xfrm_state *x;
if (!opts || opts__sz < sizeof(opts->error))
if (opts__sz < sizeof(opts->error))
return NULL;
if (opts__sz != BPF_XFRM_STATE_OPTS_SZ) {