[PATCH v2 1/2] bpf: Annotate implicit fall through in cgroup_dev_func_proto

[Mathieu Malaterre]

There is a plan to build the kernel with -Wimplicit-fallthrough and
this place in the code produced a warnings (W=1).

This commit remove the following warning:

  kernel/bpf/cgroup.c:719:6: warning: this statement may fall through 
[-Wimplicit-fallthrough=]

Signed-off-by: Mathieu Malaterre <ma...@debian.org>
---
v2: Reword the patch subject

 kernel/bpf/cgroup.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/bpf/cgroup.c b/kernel/bpf/cgroup.c
index 9425c2fb872f..ab612fe9862f 100644
--- a/kernel/bpf/cgroup.c
+++ b/kernel/bpf/cgroup.c
@@ -718,6 +718,7 @@ cgroup_dev_func_proto(enum bpf_func_id func_id, const 
struct bpf_prog *prog)
        case BPF_FUNC_trace_printk:
                if (capable(CAP_SYS_ADMIN))
                        return bpf_get_trace_printk_proto();
+               /* fall through */
        default:
                return NULL;
        }
-- 
2.19.2