diff mbox series

[v2,7/8] ppc: Add a missing break for PPC6xx_INPUT_TBEN

Message ID 20201030004046.2191790-8-kuhn.chenqun@huawei.com
State New
Headers show
Series silence the compiler warnings | expand

Commit Message

Chenqun (kuhn) Oct. 30, 2020, 12:40 a.m. UTC
When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning:
hw/ppc/ppc.c: In function ‘ppc6xx_set_irq’:
hw/ppc/ppc.c:118:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
  118 |             if (level) {
      |                ^
hw/ppc/ppc.c:123:9: note: here
  123 |         case PPC6xx_INPUT_INT:
      |         ^~~~

According to the discussion, a break statement needs to be added here.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
---
v1->v2: Add a "break" statement here instead of /* fall through */ comments
(Base on Thomas's and David review).

Cc: Thomas Huth <thuth@redhat.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
---
 hw/ppc/ppc.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Thomas Huth Oct. 30, 2020, 3:41 p.m. UTC | #1
On 30/10/2020 01.40, Chen Qun wrote:
> When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning:
> hw/ppc/ppc.c: In function ‘ppc6xx_set_irq’:
> hw/ppc/ppc.c:118:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
>   118 |             if (level) {
>       |                ^
> hw/ppc/ppc.c:123:9: note: here
>   123 |         case PPC6xx_INPUT_INT:
>       |         ^~~~
> 
> According to the discussion, a break statement needs to be added here.
> 
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
> ---
> v1->v2: Add a "break" statement here instead of /* fall through */ comments
> (Base on Thomas's and David review).
> 
> Cc: Thomas Huth <thuth@redhat.com>
> Cc: David Gibson <david@gibson.dropbear.id.au>
> ---
>  hw/ppc/ppc.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c
> index 4a11fb1640..1b98272076 100644
> --- a/hw/ppc/ppc.c
> +++ b/hw/ppc/ppc.c
> @@ -120,6 +120,7 @@ static void ppc6xx_set_irq(void *opaque, int pin, int level)
>              } else {
>                  cpu_ppc_tb_stop(env);
>              }
> +            break;
>          case PPC6xx_INPUT_INT:
>              /* Level sensitive - active high */
>              LOG_IRQ("%s: set the external IRQ state to %d\n",
> 

Reviewed-by: Thomas Huth <thuth@redhat.com>
David Gibson Oct. 31, 2020, 5:01 a.m. UTC | #2
On Fri, Oct 30, 2020 at 08:40:45AM +0800, Chen Qun wrote:
> When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning:
> hw/ppc/ppc.c: In function ‘ppc6xx_set_irq’:
> hw/ppc/ppc.c:118:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
>   118 |             if (level) {
>       |                ^
> hw/ppc/ppc.c:123:9: note: here
>   123 |         case PPC6xx_INPUT_INT:
>       |         ^~~~
> 
> According to the discussion, a break statement needs to be added here.
> 
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
> ---
> v1->v2: Add a "break" statement here instead of /* fall through */ comments
> (Base on Thomas's and David review).
> 
> Cc: Thomas Huth <thuth@redhat.com>
> Cc: David Gibson <david@gibson.dropbear.id.au>

Acked-by: David Gibson <david@gibson.dropbear.id.au>

> ---
>  hw/ppc/ppc.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c
> index 4a11fb1640..1b98272076 100644
> --- a/hw/ppc/ppc.c
> +++ b/hw/ppc/ppc.c
> @@ -120,6 +120,7 @@ static void ppc6xx_set_irq(void *opaque, int pin, int level)
>              } else {
>                  cpu_ppc_tb_stop(env);
>              }
> +            break;
>          case PPC6xx_INPUT_INT:
>              /* Level sensitive - active high */
>              LOG_IRQ("%s: set the external IRQ state to %d\n",
diff mbox series

Patch

diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c
index 4a11fb1640..1b98272076 100644
--- a/hw/ppc/ppc.c
+++ b/hw/ppc/ppc.c
@@ -120,6 +120,7 @@  static void ppc6xx_set_irq(void *opaque, int pin, int level)
             } else {
                 cpu_ppc_tb_stop(env);
             }
+            break;
         case PPC6xx_INPUT_INT:
             /* Level sensitive - active high */
             LOG_IRQ("%s: set the external IRQ state to %d\n",