linux-kernel - Re: [PATCH] drm/amdgpu: allocate large structures dynamically

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <777550697e44478c46768db5265dcdda094932f4.camel@perches.com>
Date:   Wed, 06 May 2020 23:55:30 -0700
From:   Joe Perches <joe@...ches.com>
To:     christian.koenig@....com, Arnd Bergmann <arnd@...db.de>,
        Alex Deucher <alexander.deucher@....com>,
        "David (ChunMing) Zhou" <David1.Zhou@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Hawking Zhang <Hawking.Zhang@....com>,
        John Clements <john.clements@....com>
Cc:     Guchun Chen <guchun.chen@....com>, Tao Zhou <tao.zhou1@....com>,
        linux-kernel@...r.kernel.org, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, Dennis Li <Dennis.Li@....com>
Subject: Re: [PATCH] drm/amdgpu: allocate large structures dynamically

On Thu, 2020-05-07 at 08:42 +0200, Christian König wrote:
> Am 06.05.20 um 21:01 schrieb Joe Perches:
[]
> > And trivia:
> > 
> > The !! uses with bool seem unnecessary and it's probably better
> > to make amdgpu_ras_is_feature_enabled to return bool.
[]
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
[]
> > @@ -560,7 +560,7 @@ static int __amdgpu_ras_feature_enable(struct amdgpu_device *adev,
> >   	 */
> >   	if (!amdgpu_ras_is_feature_allowed(adev, head))
> >   		return 0;
> > -	if (!(!!enable ^ !!amdgpu_ras_is_feature_enabled(adev, head)))
> > +	if (!(enable ^ amdgpu_ras_is_feature_enabled(adev, head)))
> 
> And while we are at improving coding style I think that writing this as 
> "if (enabled == amdgpu_ras_is_feature_enabled(adev, head))" would be 
> much more readable.

<blink, chuckle> that's decidedly true...