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Code Issues Releases Wiki Activity

drm/gma500: Remove VLA

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There's an ongoing effort to remove VLAs[1] from the kernel to eventually
turn on -Wvla. Switch to a reasonable upper bound for the VLAs in
the gma500 driver.

[1] https://lkml.org/lkml/2018/3/7/621

Signed-off-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180409210647.3718-1-labbott@redhat.com
This commit is contained in:
Laura Abbott 2018-04-09 14:06:47 -07:00 committed by Daniel Vetter
parent c7cbed560c
commit 520ea93475
1 changed files with 9 additions and 2 deletions
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11
drivers/gpu/drm/gma500/psb_intel_sdvo.c
View file

@ -429,13 +429,20 @@ static const char *cmd_status_names[] = {
"Scaling not supported"
};
#define MAX_ARG_LEN 32
static bool psb_intel_sdvo_write_cmd(struct psb_intel_sdvo *psb_intel_sdvo, u8 cmd,
const void *args, int args_len)
{
u8 buf[args_len*2 + 2], status;
struct i2c_msg msgs[args_len + 3];
u8 buf[MAX_ARG_LEN*2 + 2], status;
struct i2c_msg msgs[MAX_ARG_LEN + 3];
int i, ret;
if (args_len > MAX_ARG_LEN) {
DRM_ERROR("Need to increase arg length\n");
return false;
}
psb_intel_sdvo_debug_write(psb_intel_sdvo, cmd, args, args_len);
for (i = 0; i < args_len; i++) {