diff options
| author | Yuze Chi <chiyuze@google.com> | 2022-06-03 08:51:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-17 16:14:25 +0300 |
| commit | 81bb39a0f2f385e91b2b2751f628388c3b450ddb (patch) | |
| tree | 465ec6634c325ef7974c6a2c00e8a36c119edd49 /tools/lib/bpf | |
| parent | 26f0067ae603d1ef2c7a1739d4419df0c03fab63 (diff) | |
| download | linux-81bb39a0f2f385e91b2b2751f628388c3b450ddb.tar.xz | |
libbpf: Fix is_pow_of_2
[ Upstream commit 611edf1bacc51355ccb497915695db7f869cb382 ]
Move the correct definition from linker.c into libbpf_internal.h.
Fixes: 0087a681fa8c ("libbpf: Automatically fix up BPF_MAP_TYPE_RINGBUF size, if necessary")
Reported-by: Yuze Chi <chiyuze@google.com>
Signed-off-by: Yuze Chi <chiyuze@google.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220603055156.2830463-1-irogers@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/lib/bpf')
| -rw-r--r-- | tools/lib/bpf/libbpf.c | 5 | ||||
| -rw-r--r-- | tools/lib/bpf/libbpf_internal.h | 5 | ||||
| -rw-r--r-- | tools/lib/bpf/linker.c | 5 |
3 files changed, 5 insertions, 10 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index e89cc9c885b3..526bd6cd84a0 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -4943,11 +4943,6 @@ bpf_object__populate_internal_map(struct bpf_object *obj, struct bpf_map *map) static void bpf_map__destroy(struct bpf_map *map); -static bool is_pow_of_2(size_t x) -{ - return x && (x & (x - 1)); -} - static size_t adjust_ringbuf_sz(size_t sz) { __u32 page_sz = sysconf(_SC_PAGE_SIZE); diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h index 4abdbe2fea9d..ef5d975078e5 100644 --- a/tools/lib/bpf/libbpf_internal.h +++ b/tools/lib/bpf/libbpf_internal.h @@ -580,4 +580,9 @@ struct bpf_link * usdt_manager_attach_usdt(struct usdt_manager *man, const char *usdt_provider, const char *usdt_name, __u64 usdt_cookie); +static inline bool is_pow_of_2(size_t x) +{ + return x && (x & (x - 1)) == 0; +} + #endif /* __LIBBPF_LIBBPF_INTERNAL_H */ diff --git a/tools/lib/bpf/linker.c b/tools/lib/bpf/linker.c index 9aa016fb55aa..85c0fddf55d1 100644 --- a/tools/lib/bpf/linker.c +++ b/tools/lib/bpf/linker.c @@ -697,11 +697,6 @@ static int linker_load_obj_file(struct bpf_linker *linker, const char *filename, return err; } -static bool is_pow_of_2(size_t x) -{ - return x && (x & (x - 1)) == 0; -} - static int linker_sanity_check_elf(struct src_obj *obj) { struct src_sec *sec; |