linux-hardening - Re: [Nouveau] [PATCH RESEND][next] drm/nouveau: Fix fall-through warnings for Clang

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Date:   Thu, 3 Jun 2021 23:15:37 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Karol Herbst <kherbst@...hat.com>
Cc:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Ben Skeggs <bskeggs@...hat.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Kees Cook <keescook@...omium.org>,
        nouveau <nouveau@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        linux-hardening@...r.kernel.org
Subject: Re: [Nouveau] [PATCH RESEND][next] drm/nouveau: Fix fall-through
 warnings for Clang

On 6/1/21 19:10, Karol Herbst wrote:
> all three nouveau patches are
> 
> Reviewed-by: Karol Herbst <kherbst@...hat.com>
> 
> and I don't think anybody would mind if those get into through other
> trees, but maybe drm-mist would be a good place for it if other
> patches involve other drm drivers?

No other person has replied after pinging multiple times and resending
these patches, so I guess people don't care.

I'll add this and the other similar patches to my -next branch for 5.14.

Thanks, Karol.
--
Gustavo

> 
> On Wed, Jun 2, 2021 at 1:16 AM Gustavo A. R. Silva
> <gustavo@...eddedor.com> wrote:
>>
>> Hi,
>>
>> Friendly second ping: who can take this?
>>
>> I can add this to my -next branch for 5.14 if you don't mind.
>>
>> JFYI: We had thousands of these sorts of warnings and now we are down
>> to just 23 in linux-next. This is one of those last remaining warnings.
>>
>> Thanks
>> --
>> Gustavo
>>
>> On 4/20/21 15:13, Gustavo A. R. Silva wrote:
>>> Hi all,
>>>
>>> Friendly ping: who can take this, please?
>>>
>>> Thanks
>>> --
>>> Gustavo
>>>
>>> On 3/5/21 03:56, Gustavo A. R. Silva wrote:
>>>> In preparation to enable -Wimplicit-fallthrough for Clang, fix a couple
>>>> of warnings by explicitly adding a couple of break statements instead
>>>> of letting the code fall through to the next case.
>>>>
>>>> Link: https://github.com/KSPP/linux/issues/115
>>>> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
>>>> ---
>>>>  drivers/gpu/drm/nouveau/nouveau_bo.c        | 1 +
>>>>  drivers/gpu/drm/nouveau/nouveau_connector.c | 1 +
>>>>  2 files changed, 2 insertions(+)
>>>>
>>>> diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
>>>> index 2375711877cf..62903c3b368d 100644
>>>> --- a/drivers/gpu/drm/nouveau/nouveau_bo.c
>>>> +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
>>>> @@ -443,6 +443,7 @@ nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t domain, bool contig)
>>>>                      break;
>>>>              case TTM_PL_TT:
>>>>                      error |= !(domain & NOUVEAU_GEM_DOMAIN_GART);
>>>> +                    break;
>>>>              default:
>>>>                      break;
>>>>              }
>>>> diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
>>>> index 61e6d7412505..eb844cdcaec2 100644
>>>> --- a/drivers/gpu/drm/nouveau/nouveau_connector.c
>>>> +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
>>>> @@ -157,6 +157,7 @@ nouveau_conn_atomic_set_property(struct drm_connector *connector,
>>>>                      default:
>>>>                              break;
>>>>                      }
>>>> +                    break;
>>>>              case DRM_MODE_SCALE_FULLSCREEN:
>>>>              case DRM_MODE_SCALE_CENTER:
>>>>              case DRM_MODE_SCALE_ASPECT:
>>>>
>> _______________________________________________
>> Nouveau mailing list
>> Nouveau@...ts.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/nouveau
>>
> 

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