[PATCH bpf-next 3/4] bpf: Remove static qualifier from local subprog pointer

[Daniel Borkmann <daniel@iogearbox.net>]

The local subprog pointer in create_jt() and visit_abnormal_return_insn()
was declared static.

It is unconditionally assigned via bpf_find_containing_subprog() before
every use. Thus, the static qualifier serves no purpose and rather creates
confusion. Just remove it.

Fixes: e40f5a6bf88a ("bpf: correct stack liveness for tail calls")
Fixes: 493d9e0d6083 ("bpf, x86: add support for indirect jumps")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
---
 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 46f55ea6684e..6cb54764d452 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -19224,7 +19224,7 @@ static struct bpf_iarray *jt_from_subprog(struct bpf_verifier_env *env,
 static struct bpf_iarray *
 create_jt(int t, struct bpf_verifier_env *env)
 {
-	static struct bpf_subprog_info *subprog;
+	struct bpf_subprog_info *subprog;
 	int subprog_start, subprog_end;
 	struct bpf_iarray *jt;
 	int i;
@@ -19299,7 +19299,7 @@ static int visit_gotox_insn(int t, struct bpf_verifier_env *env)
  */
 static int visit_abnormal_return_insn(struct bpf_verifier_env *env, int t)
 {
-	static struct bpf_subprog_info *subprog;
+	struct bpf_subprog_info *subprog;
 	struct bpf_iarray *jt;
 
 	if (env->insn_aux_data[t].jt)
-- 
2.43.0