[RFC PATCH v3 41/78] linux-user: add fallthrough pseudo-keyword

[Emmanouil Pitsidianakis]

In preparation of raising -Wimplicit-fallthrough to 5, replace all
fall-through comments with the fallthrough attribute pseudo-keyword.

Signed-off-by: Emmanouil Pitsidianakis <manos.pitsidiana...@linaro.org>
---
 linux-user/mips/cpu_loop.c | 8 ++++----
 linux-user/mmap.c          | 2 +-
 linux-user/syscall.c       | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c
index 8735e58bad..38ddcadfc6 100644
--- a/linux-user/mips/cpu_loop.c
+++ b/linux-user/mips/cpu_loop.c
@@ -102,22 +102,22 @@ void cpu_loop(CPUMIPSState *env)
                     if ((ret = get_user_ual(arg8, sp_reg + 28)) != 0) {
                         goto done_syscall;
                     }
-                    /* fall through */
+                    fallthrough;
                 case 7:
                     if ((ret = get_user_ual(arg7, sp_reg + 24)) != 0) {
                         goto done_syscall;
                     }
-                    /* fall through */
+                    fallthrough;
                 case 6:
                     if ((ret = get_user_ual(arg6, sp_reg + 20)) != 0) {
                         goto done_syscall;
                     }
-                    /* fall through */
+                    fallthrough;
                 case 5:
                     if ((ret = get_user_ual(arg5, sp_reg + 16)) != 0) {
                         goto done_syscall;
                     }
-                    /* fall through */
+                    fallthrough;
                 default:
                     break;
                 }
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 8ccaab7859..ff33b4ccf6 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -1012,7 +1012,7 @@ abi_long target_madvise(abi_ulong start, abi_ulong 
len_in, int advice)
     case MADV_WIPEONFORK:
     case MADV_KEEPONFORK:
         ret = -EINVAL;
-        /* fall through */
+        fallthrough;
     case MADV_DONTNEED:
         if (page_check_range(start, len, PAGE_PASSTHROUGH)) {
             ret = get_errno(madvise(g2h_untagged(start), len, advice));
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index d49cd314a2..d15817846c 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -7782,7 +7782,7 @@ static int do_futex(CPUState *cpu, bool time64, 
target_ulong uaddr,
     case FUTEX_CMP_REQUEUE:
     case FUTEX_CMP_REQUEUE_PI:
         val3 = tswap32(val3);
-        /* fall through */
+        fallthrough;
     case FUTEX_REQUEUE:
     case FUTEX_WAKE_OP:
         /*
-- 
2.39.2