[RFC PATCH v3 45/78] hw/dma: 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.pitsidianakis@linaro.org>
---
 hw/dma/omap_dma.c    | 32 ++++++++++++++++----------------
 hw/dma/pxa2xx_dma.c  |  4 ++--
 hw/dma/sparc32_dma.c |  2 +-
 3 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/hw/dma/omap_dma.c b/hw/dma/omap_dma.c
index 77797a67b5..dd43dbf3d2 100644
--- a/hw/dma/omap_dma.c
+++ b/hw/dma/omap_dma.c
@@ -1471,7 +1471,7 @@ static uint64_t omap_dma_read(void *opaque, hwaddr addr, 
unsigned size)
                 break;
             return ret;
         }
-        /* Fall through. */
+        fallthrough;
     case 0x000 ... 0x2fe:
         reg = addr & 0x3f;
         ch = (addr >> 6) & 0x0f;
@@ -1482,7 +1482,7 @@ static uint64_t omap_dma_read(void *opaque, hwaddr addr, 
unsigned size)
     case 0x404 ... 0x4fe:
         if (s->model <= omap_dma_3_1)
             break;
-        /* Fall through. */
+        fallthrough;
     case 0x400:
         if (omap_dma_sys_read(s, addr, &ret))
             break;
@@ -1519,7 +1519,7 @@ static void omap_dma_write(void *opaque, hwaddr addr,
                 break;
             return;
         }
-        /* Fall through.  */
+        fallthrough;
     case 0x000 ... 0x2fe:
         reg = addr & 0x3f;
         ch = (addr >> 6) & 0x0f;
@@ -1530,7 +1530,7 @@ static void omap_dma_write(void *opaque, hwaddr addr,
     case 0x404 ... 0x4fe:
         if (s->model <= omap_dma_3_1)
             break;
-        /* fall through */
+        fallthrough;
     case 0x400:
         if (omap_dma_sys_write(s, addr, value))
             break;
@@ -1716,25 +1716,25 @@ static uint64_t omap_dma4_read(void *opaque, hwaddr 
addr,
 
     case 0x14: /* DMA4_IRQSTATUS_L3 */
         irqn ++;
-        /* fall through */
+        fallthrough;
     case 0x10: /* DMA4_IRQSTATUS_L2 */
         irqn ++;
-        /* fall through */
+        fallthrough;
     case 0x0c: /* DMA4_IRQSTATUS_L1 */
         irqn ++;
-        /* fall through */
+        fallthrough;
     case 0x08: /* DMA4_IRQSTATUS_L0 */
         return s->irqstat[irqn];
 
     case 0x24: /* DMA4_IRQENABLE_L3 */
         irqn ++;
-        /* fall through */
+        fallthrough;
     case 0x20: /* DMA4_IRQENABLE_L2 */
         irqn ++;
-        /* fall through */
+        fallthrough;
     case 0x1c: /* DMA4_IRQENABLE_L1 */
         irqn ++;
-        /* fall through */
+        fallthrough;
     case 0x18: /* DMA4_IRQENABLE_L0 */
         return s->irqen[irqn];
 
@@ -1870,13 +1870,13 @@ static void omap_dma4_write(void *opaque, hwaddr addr,
     switch (addr) {
     case 0x14: /* DMA4_IRQSTATUS_L3 */
         irqn ++;
-        /* fall through */
+        fallthrough;
     case 0x10: /* DMA4_IRQSTATUS_L2 */
         irqn ++;
-        /* fall through */
+        fallthrough;
     case 0x0c: /* DMA4_IRQSTATUS_L1 */
         irqn ++;
-        /* fall through */
+        fallthrough;
     case 0x08: /* DMA4_IRQSTATUS_L0 */
         s->irqstat[irqn] &= ~value;
         if (!s->irqstat[irqn])
@@ -1885,13 +1885,13 @@ static void omap_dma4_write(void *opaque, hwaddr addr,
 
     case 0x24: /* DMA4_IRQENABLE_L3 */
         irqn ++;
-        /* fall through */
+        fallthrough;
     case 0x20: /* DMA4_IRQENABLE_L2 */
         irqn ++;
-        /* fall through */
+        fallthrough;
     case 0x1c: /* DMA4_IRQENABLE_L1 */
         irqn ++;
-        /* fall through */
+        fallthrough;
     case 0x18: /* DMA4_IRQENABLE_L0 */
         s->irqen[irqn] = value;
         return;
diff --git a/hw/dma/pxa2xx_dma.c b/hw/dma/pxa2xx_dma.c
index fa896f7edf..ac47256572 100644
--- a/hw/dma/pxa2xx_dma.c
+++ b/hw/dma/pxa2xx_dma.c
@@ -278,7 +278,7 @@ static uint64_t pxa2xx_dma_read(void *opaque, hwaddr offset,
     switch (offset) {
     case DRCMR64 ... DRCMR74:
         offset -= DRCMR64 - DRCMR0 - (64 << 2);
-        /* Fall through */
+        fallthrough;
     case DRCMR0 ... DRCMR63:
         channel = (offset - DRCMR0) >> 2;
         return s->req[channel];
@@ -338,7 +338,7 @@ static void pxa2xx_dma_write(void *opaque, hwaddr offset,
     switch (offset) {
     case DRCMR64 ... DRCMR74:
         offset -= DRCMR64 - DRCMR0 - (64 << 2);
-        /* Fall through */
+        fallthrough;
     case DRCMR0 ... DRCMR63:
         channel = (offset - DRCMR0) >> 2;
 
diff --git a/hw/dma/sparc32_dma.c b/hw/dma/sparc32_dma.c
index 0ef13c5e9a..c68e068cc9 100644
--- a/hw/dma/sparc32_dma.c
+++ b/hw/dma/sparc32_dma.c
@@ -220,7 +220,7 @@ static void dma_mem_write(void *opaque, hwaddr addr,
         break;
     case 1:
         s->dmaregs[0] |= DMA_LOADED;
-        /* fall through */
+        fallthrough;
     default:
         s->dmaregs[saddr] = val;
         break;
-- 
2.39.2