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bpf: add _impl suffix for bpf_stream_vprintk() kfunc

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Rename bpf_stream_vprintk() to bpf_stream_vprintk_impl().

This makes bpf_stream_vprintk() follow the already established "_impl"
suffix-based naming convention for kfuncs with the bpf_prog_aux
argument provided by the verifier implicitly. This convention will be
taken advantage of with the upcoming KF_IMPLICIT_ARGS feature to
preserve backwards compatibility to BPF programs.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Link: https://lore.kernel.org/r/20251104-implv2-v3-2-4772b9ae0e06@meta.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Ihor Solodrai <ihor.solodrai@linux.dev>
This commit is contained in:
Mykyta Yatsenko
2025-11-04 22:54:26 +00:00
committed by Andrii Nakryiko
parent 24a89cb35d
commit a00b10df8c
1 changed files with 13 additions and 13 deletions
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26
src/bpf_helpers.h
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@@ -315,20 +315,20 @@ enum libbpf_tristate {
___param, sizeof(___param)); \
})
extern int bpf_stream_vprintk(int stream_id, const char *fmt__str, const void *args,
__u32 len__sz, void *aux__prog) __weak __ksym;
extern int bpf_stream_vprintk_impl(int stream_id, const char *fmt__str, const void *args,
__u32 len__sz, void *aux__prog) __weak __ksym;
#define bpf_stream_printk(stream_id, fmt, args...) \
({ \
static const char ___fmt[] = fmt; \
unsigned long long ___param[___bpf_narg(args)]; \
\
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Wint-conversion\"") \
___bpf_fill(___param, args); \
_Pragma("GCC diagnostic pop") \
\
bpf_stream_vprintk(stream_id, ___fmt, ___param, sizeof(___param), NULL);\
#define bpf_stream_printk(stream_id, fmt, args...) \
({ \
static const char ___fmt[] = fmt; \
unsigned long long ___param[___bpf_narg(args)]; \
\
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Wint-conversion\"") \
___bpf_fill(___param, args); \
_Pragma("GCC diagnostic pop") \
\
bpf_stream_vprintk_impl(stream_id, ___fmt, ___param, sizeof(___param), NULL); \
})
/* Use __bpf_printk when bpf_printk call has 3 or fewer fmt args