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Message-ID: <CADnq5_MHvnkWtEUOG2WTBMaMKJMied3aPDg4ZLy0w+9Vyce_AQ@mail.gmail.com>
Date: Thu, 8 Oct 2020 13:22:39 -0400
From: Alex Deucher <alexdeucher@...il.com>
To: "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: Alex Deucher <alexander.deucher@....com>,
Christian König <christian.koenig@....com>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
linux-hardening@...r.kernel.org,
Maling list - DRI developers
<dri-devel@...ts.freedesktop.org>,
amd-gfx list <amd-gfx@...ts.freedesktop.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH][next] amd/amdgpu_ctx: Use struct_size() helper and kmalloc()
Applied. Thanks!
Alex
On Thu, Oct 8, 2020 at 10:29 AM Gustavo A. R. Silva
<gustavoars@...nel.org> wrote:
>
> Make use of the new struct_size() helper instead of the offsetof() idiom.
> Also, use kmalloc() instead of kcalloc().
>
> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
> index c80d8339f58c..5be125f3b92a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
> @@ -100,7 +100,7 @@ static int amdgpu_ctx_init_entity(struct amdgpu_ctx *ctx, u32 hw_ip,
> enum drm_sched_priority priority;
> int r;
>
> - entity = kcalloc(1, offsetof(typeof(*entity), fences[amdgpu_sched_jobs]),
> + entity = kmalloc(struct_size(entity, fences, amdgpu_sched_jobs),
> GFP_KERNEL);
> if (!entity)
> return -ENOMEM;
> --
> 2.27.0
>
> _______________________________________________
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> dri-devel@...ts.freedesktop.org
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