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| author | Björn Töpel <bjorn@kernel.org> | 2021-11-17 15:57:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-14 13:32:36 +0300 |
| commit | f26951db84a4074a027aba1840370ceb928ba1a3 (patch) | |
| tree | a31e03022ef58ed633d1d4d1083dbb085c57c2d7 /include | |
| parent | 74685aaecef07f59d814e4eed877094c50260e9e (diff) | |
| download | linux-f26951db84a4074a027aba1840370ceb928ba1a3.tar.xz | |
bpf, x86: Fix "no previous prototype" warning
commit f45b2974cc0ae959a4c503a071e38a56bd64372f upstream.
The arch_prepare_bpf_dispatcher function does not have a prototype, and
yields the following warning when W=1 is enabled for the kernel build.
>> arch/x86/net/bpf_jit_comp.c:2188:5: warning: no previous \
prototype for 'arch_prepare_bpf_dispatcher' [-Wmissing-prototypes]
2188 | int arch_prepare_bpf_dispatcher(void *image, s64 *funcs, \
int num_funcs)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
Remove the warning by adding a function declaration to include/linux/bpf.h.
Fixes: 75ccbef6369e ("bpf: Introduce BPF dispatcher")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Björn Töpel <bjorn@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211117125708.769168-1-bjorn@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bpf.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 474a0d852614..e6ddf5a3beaf 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -666,6 +666,7 @@ int bpf_trampoline_unlink_prog(struct bpf_prog *prog, struct bpf_trampoline *tr) struct bpf_trampoline *bpf_trampoline_get(u64 key, struct bpf_attach_target_info *tgt_info); void bpf_trampoline_put(struct bpf_trampoline *tr); +int arch_prepare_bpf_dispatcher(void *image, s64 *funcs, int num_funcs); #define BPF_DISPATCHER_INIT(_name) { \ .mutex = __MUTEX_INITIALIZER(_name.mutex), \ .func = &_name##_func, \ |