5.15-stable review patch. If anyone has any objections, please let me know.
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From: Alan Maguire alan.maguire@oracle.com
[ Upstream commit b3470da314fd8018ee237e382000c4154a942420 ]
-Werror=suggest-attribute=format warns about two functions in kernel/bpf/btf.c [1]; add __printf() annotations to silence these warnings since for CONFIG_WERROR=y they will trigger build failures.
[1] https://lore.kernel.org/bpf/a8b20c72-6631-4404-9e1f-0410642d7d20@gmail.com/
Fixes: 31d0bc81637d ("bpf: Move to generic BTF show support, apply it to seq files/strings") Reported-by: Mirsad Todorovac mtodorovac69@gmail.com Signed-off-by: Alan Maguire alan.maguire@oracle.com Tested-by: Mirsad Todorovac mtodorovac69@yahoo.com Link: https://lore.kernel.org/r/20240711182321.963667-1-alan.maguire@oracle.com Signed-off-by: Alexei Starovoitov ast@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/bpf/btf.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index a0c7e13e0ab4d..0c9d93e2c18f0 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -5808,8 +5808,8 @@ static void btf_type_show(const struct btf *btf, u32 type_id, void *obj, btf_type_ops(t)->show(btf, t, type_id, obj, 0, show); }
-static void btf_seq_show(struct btf_show *show, const char *fmt, - va_list args) +__printf(2, 0) static void btf_seq_show(struct btf_show *show, const char *fmt, + va_list args) { seq_vprintf((struct seq_file *)show->target, fmt, args); } @@ -5842,8 +5842,8 @@ struct btf_show_snprintf { int len; /* length we would have written */ };
-static void btf_snprintf_show(struct btf_show *show, const char *fmt, - va_list args) +__printf(2, 0) static void btf_snprintf_show(struct btf_show *show, const char *fmt, + va_list args) { struct btf_show_snprintf *ssnprintf = (struct btf_show_snprintf *)show; int len;