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

[David Gibson]

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

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