[RFC PATCH v3 70/78] hw/rtc: 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>
---
 hw/rtc/aspeed_rtc.c  | 4 ++--
 hw/rtc/mc146818rtc.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/hw/rtc/aspeed_rtc.c b/hw/rtc/aspeed_rtc.c
index fa861e2d49..59c64b01b9 100644
--- a/hw/rtc/aspeed_rtc.c
+++ b/hw/rtc/aspeed_rtc.c
@@ -78,7 +78,7 @@ static uint64_t aspeed_rtc_read(void *opaque, hwaddr addr,
         if (rtc->reg[CONTROL] & RTC_ENABLED) {
             rtc->reg[r] = aspeed_rtc_get_counter(rtc, r);
         }
-        /* fall through */
+        fallthrough;
     case CONTROL:
         val = rtc->reg[r];
         break;
@@ -106,7 +106,7 @@ static void aspeed_rtc_write(void *opaque, hwaddr addr,
         if (!(rtc->reg[CONTROL] & RTC_UNLOCKED)) {
             break;
         }
-        /* fall through */
+        fallthrough;
     case CONTROL:
         rtc->reg[r] = val;
         aspeed_rtc_calc_offset(rtc);
diff --git a/hw/rtc/mc146818rtc.c b/hw/rtc/mc146818rtc.c
index c27c362db9..6b6eef94fd 100644
--- a/hw/rtc/mc146818rtc.c
+++ b/hw/rtc/mc146818rtc.c
@@ -457,7 +457,7 @@ static void cmos_ioport_write(void *opaque, hwaddr addr,
             break;
         case RTC_IBM_PS2_CENTURY_BYTE:
             s->cmos_index = RTC_CENTURY;
-            /* fall through */
+            fallthrough;
         case RTC_CENTURY:
         case RTC_SECONDS:
         case RTC_MINUTES:
@@ -686,7 +686,7 @@ static uint64_t cmos_ioport_read(void *opaque, hwaddr addr,
         switch(s->cmos_index) {
         case RTC_IBM_PS2_CENTURY_BYTE:
             s->cmos_index = RTC_CENTURY;
-            /* fall through */
+            fallthrough;
         case RTC_CENTURY:
         case RTC_SECONDS:
         case RTC_MINUTES:
-- 
2.39.2