1. Patchew
  2. QEMU
  3. [PATCH v2 0/8] silence the compiler warnings
  4. View patch

[PATCH v2 8/8] target/ppc: replaced the TODO with LOG_UNIMP and add break for silence warnings

Chen Qun posted 8 patches 5 years, 3 months ago
Maintainers: Aurelien Jarno <aurelien@aurel32.net>, "Philippe Mathieu-Daudé" <f4bug@amsat.org>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>
There is a newer version of this series
[PATCH v2 8/8] target/ppc: replaced the TODO with LOG_UNIMP and add break for silence warnings
Posted by Chen Qun 5 years, 3 months ago 
When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning:
target/ppc/mmu_helper.c: In function ‘dump_mmu’:
target/ppc/mmu_helper.c:1351:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
 1351 |         if (ppc64_v3_radix(env_archcpu(env))) {
      |            ^
target/ppc/mmu_helper.c:1358:5: note: here
 1358 |     default:
      |     ^~~~~~~

Use "qemu_log_mask(LOG_UNIMP**)" instead of the TODO comment.
And add the break statement to fix it.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
---
v1->v2: replace the TODO by a LOG_UNIMP call and add break statement(Base on Philippe's comments)

Cc: Thomas Huth <thuth@redhat.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 target/ppc/mmu_helper.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c
index 8972714775..12723362b7 100644
--- a/target/ppc/mmu_helper.c
+++ b/target/ppc/mmu_helper.c
@@ -1349,11 +1349,12 @@ void dump_mmu(CPUPPCState *env)
         break;
     case POWERPC_MMU_3_00:
         if (ppc64_v3_radix(env_archcpu(env))) {
-            /* TODO - Unsupported */
+            qemu_log_mask(LOG_UNIMP, "%s: the PPC64 MMU unsupported\n",
+                          __func__);
         } else {
             dump_slb(env_archcpu(env));
-            break;
         }
+        break;
 #endif
     default:
         qemu_log_mask(LOG_UNIMP, "%s: unimplemented\n", __func__);
-- 
2.27.0
Re: [PATCH v2 8/8] target/ppc: replaced the TODO with LOG_UNIMP and add break for silence warnings
Posted by Philippe Mathieu-Daudé 5 years, 3 months ago 
On 10/30/20 1:40 AM, Chen Qun wrote:
> When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning:
> target/ppc/mmu_helper.c: In function ‘dump_mmu’:
> target/ppc/mmu_helper.c:1351:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
>  1351 |         if (ppc64_v3_radix(env_archcpu(env))) {
>       |            ^
> target/ppc/mmu_helper.c:1358:5: note: here
>  1358 |     default:
>       |     ^~~~~~~
> 
> Use "qemu_log_mask(LOG_UNIMP**)" instead of the TODO comment.
> And add the break statement to fix it.
> 
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
> ---
> v1->v2: replace the TODO by a LOG_UNIMP call and add break statement(Base on Philippe's comments)
> 
> Cc: Thomas Huth <thuth@redhat.com>
> Cc: David Gibson <david@gibson.dropbear.id.au>
> Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
>  target/ppc/mmu_helper.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c
> index 8972714775..12723362b7 100644
> --- a/target/ppc/mmu_helper.c
> +++ b/target/ppc/mmu_helper.c
> @@ -1349,11 +1349,12 @@ void dump_mmu(CPUPPCState *env)
>          break;
>      case POWERPC_MMU_3_00:
>          if (ppc64_v3_radix(env_archcpu(env))) {
> -            /* TODO - Unsupported */
> +            qemu_log_mask(LOG_UNIMP, "%s: the PPC64 MMU unsupported\n",
> +                          __func__);
>          } else {
>              dump_slb(env_archcpu(env));
> -            break;
>          }
> +        break;
>  #endif
>      default:
>          qemu_log_mask(LOG_UNIMP, "%s: unimplemented\n", __func__);
> 

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Re: [PATCH v2 8/8] target/ppc: replaced the TODO with LOG_UNIMP and add break for silence warnings
Posted by Thomas Huth 5 years, 3 months ago 
On 30/10/2020 01.40, Chen Qun wrote:
> When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning:
> target/ppc/mmu_helper.c: In function ‘dump_mmu’:
> target/ppc/mmu_helper.c:1351:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
>  1351 |         if (ppc64_v3_radix(env_archcpu(env))) {
>       |            ^
> target/ppc/mmu_helper.c:1358:5: note: here
>  1358 |     default:
>       |     ^~~~~~~
> 
> Use "qemu_log_mask(LOG_UNIMP**)" instead of the TODO comment.
> And add the break statement to fix it.
> 
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
> ---
> v1->v2: replace the TODO by a LOG_UNIMP call and add break statement(Base on Philippe's comments)
> 
> Cc: Thomas Huth <thuth@redhat.com>
> Cc: David Gibson <david@gibson.dropbear.id.au>
> Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
>  target/ppc/mmu_helper.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c
> index 8972714775..12723362b7 100644
> --- a/target/ppc/mmu_helper.c
> +++ b/target/ppc/mmu_helper.c
> @@ -1349,11 +1349,12 @@ void dump_mmu(CPUPPCState *env)
>          break;
>      case POWERPC_MMU_3_00:
>          if (ppc64_v3_radix(env_archcpu(env))) {
> -            /* TODO - Unsupported */
> +            qemu_log_mask(LOG_UNIMP, "%s: the PPC64 MMU unsupported\n",

Maybe add a "is" between "MMU" and "unsupported"?

> +                          __func__);
>          } else {
>              dump_slb(env_archcpu(env));
> -            break;
>          }
> +        break;
>  #endif
>      default:
>          qemu_log_mask(LOG_UNIMP, "%s: unimplemented\n", __func__);
> 

Reviewed-by: Thomas Huth <thuth@redhat.com>
Re: [PATCH v2 8/8] target/ppc: replaced the TODO with LOG_UNIMP and add break for silence warnings
Posted by David Gibson 5 years, 3 months ago 
On Fri, Oct 30, 2020 at 08:40:46AM +0800, Chen Qun wrote:
> When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning:
> target/ppc/mmu_helper.c: In function ‘dump_mmu’:
> target/ppc/mmu_helper.c:1351:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
>  1351 |         if (ppc64_v3_radix(env_archcpu(env))) {
>       |            ^
> target/ppc/mmu_helper.c:1358:5: note: here
>  1358 |     default:
>       |     ^~~~~~~
> 
> Use "qemu_log_mask(LOG_UNIMP**)" instead of the TODO comment.
> And add the break statement to fix it.
> 
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>

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

> ---
> v1->v2: replace the TODO by a LOG_UNIMP call and add break statement(Base on Philippe's comments)
> 
> Cc: Thomas Huth <thuth@redhat.com>
> Cc: David Gibson <david@gibson.dropbear.id.au>
> Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
>  target/ppc/mmu_helper.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c
> index 8972714775..12723362b7 100644
> --- a/target/ppc/mmu_helper.c
> +++ b/target/ppc/mmu_helper.c
> @@ -1349,11 +1349,12 @@ void dump_mmu(CPUPPCState *env)
>          break;
>      case POWERPC_MMU_3_00:
>          if (ppc64_v3_radix(env_archcpu(env))) {
> -            /* TODO - Unsupported */
> +            qemu_log_mask(LOG_UNIMP, "%s: the PPC64 MMU unsupported\n",
> +                          __func__);
>          } else {
>              dump_slb(env_archcpu(env));
> -            break;
>          }
> +        break;
>  #endif
>      default:
>          qemu_log_mask(LOG_UNIMP, "%s: unimplemented\n", __func__);

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

Patchew 2.1-devel-b67e4c2

© 2016 - 2026 Red Hat, Inc.