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@xxxxxxxxx>
Signed-off-by: Björn Töpel <bjorn@xxxxxxxxxx>
---
include/linux/bpf.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index e7a163a3146b..84ff6ef49462 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -732,6 +732,7 @@ 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, \
base-commit: 3751c3d34cd5a750c86d1c8eaf217d8faf7f9325
--
2.32.0
