linux-kernel - [PATCH 6.7 030/713] bpf: Fix warning for bpf

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Date: Sun, 24 Mar 2024 18:35:56 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Hari Bathini <hbathini@...ux.ibm.com>,
	Andrii Nakryiko <andrii@...nel.org>,
	Jiri Olsa <jolsa@...nel.org>,
	Stanislav Fomichev <sdf@...gle.com>,
	David Vernet <void@...ifault.com>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.7 030/713] bpf: Fix warning for bpf_cpumask in verifier

From: Hari Bathini <hbathini@...ux.ibm.com>

[ Upstream commit 11f522256e9043b0fcd2f994278645d3e201d20c ]

Compiling with CONFIG_BPF_SYSCALL & !CONFIG_BPF_JIT throws the below
warning:

  "WARN: resolve_btfids: unresolved symbol bpf_cpumask"

Fix it by adding the appropriate #ifdef.

Signed-off-by: Hari Bathini <hbathini@...ux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@...nel.org>
Acked-by: Jiri Olsa <jolsa@...nel.org>
Acked-by: Stanislav Fomichev <sdf@...gle.com>
Acked-by: David Vernet <void@...ifault.com>
Link: https://lore.kernel.org/bpf/20240208100115.602172-1-hbathini@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 kernel/bpf/verifier.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 9698e93d48c6e..890d4c4bf9972 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -5445,7 +5445,9 @@ BTF_ID(struct, prog_test_ref_kfunc)
 #ifdef CONFIG_CGROUPS
 BTF_ID(struct, cgroup)
 #endif
+#ifdef CONFIG_BPF_JIT
 BTF_ID(struct, bpf_cpumask)
+#endif
 BTF_ID(struct, task_struct)
 BTF_SET_END(rcu_protected_types)
 
-- 
2.43.0