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bpf: Fix offset warn check for bpf_res_spin_lock

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Sashiko pointed out correctly that the case statement for
BPF_RES_SPIN_LOCK incorrectly checks offset for BPF_SPIN_LOCK.
Fix it by checking res_spin_lock_off instead.

Fixes: 0de2046137 ("bpf: Implement verifier support for rqspinlock")
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://patch.msgid.link/20260719153634.2908692-2-memxor@gmail.com
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
This commit is contained in:
Kumar Kartikeya Dwivedi 2026-07-19 17:36:28 +02:00 committed by Eduard Zingerman
parent fcac2b4a3b
commit 04e19012ef
1 changed files with 1 additions and 1 deletions
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2
kernel/bpf/btf.c
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@ -4168,7 +4168,7 @@ struct btf_record *btf_parse_fields(const struct btf *btf, const struct btf_type
rec->spin_lock_off = rec->fields[i].offset;
break;
case BPF_RES_SPIN_LOCK:
WARN_ON_ONCE(rec->spin_lock_off >= 0);
WARN_ON_ONCE(rec->res_spin_lock_off >= 0);
/* Cache offset for faster lookup at runtime */
rec->res_spin_lock_off = rec->fields[i].offset;
break;