lkml.org 
[lkml]   [2018]   [Mar]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: [PATCH] drm/nouveau/secboot: remove VLA usage
Date
From: Gustavo A. R. Silva
> Sent: 13 March 2018 14:48
> In preparation to enabling -Wvla, remove VLA. In this particular
> case directly use macro NVKM_MSGQUEUE_CMDLINE_SIZE instead of local
> variable cmdline_size. Also, remove cmdline_size as it is not
> actually useful anymore.
...
> diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode_msgqueue.c
> b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode_msgqueue.c
> index 6f10b09..2da147b 100644
> --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode_msgqueue.c
> +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode_msgqueue.c
> @@ -80,12 +80,12 @@ acr_ls_msgqueue_post_run(struct nvkm_msgqueue *queue,
> struct nvkm_falcon *falcon, u32 addr_args)
> {
> struct nvkm_device *device = falcon->owner->device;
> - u32 cmdline_size = NVKM_MSGQUEUE_CMDLINE_SIZE;
> - u8 buf[cmdline_size];
> + u8 buf[NVKM_MSGQUEUE_CMDLINE_SIZE];
>
> - memset(buf, 0, cmdline_size);
> + memset(buf, 0, NVKM_MSGQUEUE_CMDLINE_SIZE);
> nvkm_msgqueue_write_cmdline(queue, buf);
> - nvkm_falcon_load_dmem(falcon, buf, addr_args, cmdline_size, 0);
> + nvkm_falcon_load_dmem(falcon, buf, addr_args,
> + NVKM_MSGQUEUE_CMDLINE_SIZE, 0);

I think I'd use 'sizeof (buf)' in both those lines.

David

\
 
 \ /
  Last update: 2018-03-13 17:10    [W:0.081 / U:2.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site