When compiling with -Werror=implicit-fallthrough, the compiler complains
about a missing fallthrough annotation in this file. Looking at the code,
the fallthrough is indeed wanted here, so let's add a proper comment.

Message-Id: <20201217154138.1547274-1-thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 bsd-user/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/bsd-user/main.c b/bsd-user/main.c
index 0a918e8f74..9c700c6234 100644
--- a/bsd-user/main.c
+++ b/bsd-user/main.c
@@ -512,6 +512,7 @@ void cpu_loop(CPUSPARCState *env)
         case 0x141:
             if (bsd_type != target_freebsd)
                 goto badtrap;
+            /* fallthrough */
         case 0x100:
 #endif
             syscall_nr = env->gregs[1];
-- 
2.27.0