From: Yonghong Song <yonghong.song@linux.dev>
To: bpf@vger.kernel.org
Cc: Alexei Starovoitov <ast@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
"Jose E . Marchesi" <jose.marchesi@oracle.com>,
kernel-team@fb.com, Martin KaFai Lau <martin.lau@kernel.org>
Subject: [PATCH bpf-next v5 01/16] bpf: Remove unused parameter from check_map_kptr_access()
Date: Thu, 16 Apr 2026 20:47:03 -0700 [thread overview]
Message-ID: <20260417034703.2625849-1-yonghong.song@linux.dev> (raw)
In-Reply-To: <20260417034658.2625353-1-yonghong.song@linux.dev>
The parameter 'regno' in check_map_kptr_access() is unused. Remove it.
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
---
kernel/bpf/verifier.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 9e4980128151..44d0af8f73d1 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -4711,7 +4711,7 @@ static int mark_uptr_ld_reg(struct bpf_verifier_env *env, u32 regno,
return 0;
}
-static int check_map_kptr_access(struct bpf_verifier_env *env, u32 regno,
+static int check_map_kptr_access(struct bpf_verifier_env *env,
int value_regno, int insn_idx,
struct btf_field *kptr_field)
{
@@ -6358,7 +6358,7 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
kptr_field = btf_record_find(reg->map_ptr->record,
off + reg->var_off.value, BPF_KPTR | BPF_UPTR);
if (kptr_field) {
- err = check_map_kptr_access(env, regno, value_regno, insn_idx, kptr_field);
+ err = check_map_kptr_access(env, value_regno, insn_idx, kptr_field);
} else if (t == BPF_READ && value_regno >= 0) {
struct bpf_map *map = reg->map_ptr;
--
2.52.0
next prev parent reply other threads:[~2026-04-17 3:47 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-17 3:46 [PATCH bpf-next v5 00/16] bpf: Support stack arguments for BPF functions and kfuncs Yonghong Song
2026-04-17 3:47 ` Yonghong Song [this message]
2026-04-17 3:47 ` [PATCH bpf-next v5 02/16] bpf: Refactor to avoid redundant calculation of bpf_reg_state Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 03/16] bpf: Refactor to handle memory and size together Yonghong Song
2026-04-17 4:49 ` sashiko-bot
2026-04-18 16:40 ` Yonghong Song
2026-04-18 0:52 ` bot+bpf-ci
2026-04-18 16:47 ` Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 04/16] bpf: Prepare verifier logs for upcoming kfunc stack arguments Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 05/16] bpf: Introduce bpf register BPF_REG_PARAMS Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 06/16] bpf: Limit the scope of BPF_REG_PARAMS usage Yonghong Song
2026-04-17 4:30 ` bot+bpf-ci
2026-04-18 16:48 ` Yonghong Song
2026-04-17 4:50 ` sashiko-bot
2026-04-18 16:50 ` Yonghong Song
2026-04-18 1:04 ` bot+bpf-ci
2026-04-18 16:54 ` Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 07/16] bpf: Reuse MAX_BPF_FUNC_ARGS for maximum number of arguments Yonghong Song
2026-04-17 4:30 ` bot+bpf-ci
2026-04-18 17:00 ` Yonghong Song
2026-04-18 0:52 ` bot+bpf-ci
2026-04-18 17:03 ` Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 08/16] bpf: Support stack arguments for bpf functions Yonghong Song
2026-04-17 4:35 ` sashiko-bot
2026-04-18 17:10 ` Yonghong Song
2026-04-17 4:43 ` bot+bpf-ci
2026-04-18 17:11 ` Yonghong Song
2026-04-18 1:04 ` bot+bpf-ci
2026-04-17 3:47 ` [PATCH bpf-next v5 09/16] bpf: Reject stack arguments in non-JITed programs Yonghong Song
2026-04-17 4:30 ` bot+bpf-ci
2026-04-18 17:17 ` Yonghong Song
2026-04-18 0:52 ` bot+bpf-ci
2026-04-17 3:47 ` [PATCH bpf-next v5 10/16] bpf: Reject stack arguments if tail call reachable Yonghong Song
2026-04-17 4:08 ` sashiko-bot
2026-04-18 17:18 ` Yonghong Song
2026-04-18 17:37 ` Yonghong Song
2026-04-17 4:30 ` bot+bpf-ci
2026-04-18 1:04 ` bot+bpf-ci
2026-04-18 17:24 ` Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 11/16] bpf: Support stack arguments for kfunc calls Yonghong Song
2026-04-17 4:40 ` sashiko-bot
2026-04-18 17:46 ` Yonghong Song
2026-04-17 4:43 ` bot+bpf-ci
2026-04-18 17:57 ` Yonghong Song
2026-04-18 1:04 ` bot+bpf-ci
2026-04-18 18:04 ` Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 12/16] bpf: Enable stack argument support for x86_64 Yonghong Song
2026-04-17 4:30 ` bot+bpf-ci
2026-04-17 5:03 ` sashiko-bot
2026-04-18 18:07 ` Yonghong Song
2026-04-18 1:04 ` bot+bpf-ci
2026-04-17 3:48 ` [PATCH bpf-next v5 13/16] bpf,x86: Implement JIT support for stack arguments Yonghong Song
2026-04-17 4:44 ` sashiko-bot
2026-04-18 16:43 ` Puranjay Mohan
2026-04-18 18:15 ` Yonghong Song
2026-04-18 1:20 ` bot+bpf-ci
2026-04-18 18:23 ` Yonghong Song
2026-04-17 3:48 ` [PATCH bpf-next v5 14/16] selftests/bpf: Add tests for BPF function " Yonghong Song
2026-04-17 4:20 ` sashiko-bot
2026-04-18 0:52 ` bot+bpf-ci
2026-04-18 18:26 ` Yonghong Song
2026-04-17 3:48 ` [PATCH bpf-next v5 15/16] selftests/bpf: Add negative test for greater-than-8-byte kfunc stack argument Yonghong Song
2026-04-17 4:28 ` sashiko-bot
2026-04-18 18:29 ` Yonghong Song
2026-04-18 0:52 ` bot+bpf-ci
2026-04-17 3:48 ` [PATCH bpf-next v5 16/16] selftests/bpf: Add verifier tests for stack argument validation Yonghong Song
2026-04-17 4:38 ` sashiko-bot
2026-04-18 18:36 ` Yonghong Song
2026-04-18 0:52 ` bot+bpf-ci
2026-04-18 16:39 ` [PATCH bpf-next v5 00/16] bpf: Support stack arguments for BPF functions and kfuncs Puranjay Mohan
2026-04-18 18:47 ` Alexei Starovoitov
2026-04-18 18:54 ` Yonghong Song
2026-04-18 17:06 ` Puranjay Mohan
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