[PATCH] drm: don't push static constants on stack for %*ph
David Herrmann
dh.herrmann at gmail.com
Fri Aug 2 09:19:49 PDT 2013
Hi
On Fri, Aug 2, 2013 at 1:09 PM, Andy Shevchenko
<andriy.shevchenko at linux.intel.com> wrote:
> There is no need to pass constants via stack. The width may be explicitly
> specified in the format.
Yupp, all 3 make sense and actually speed up "format_decode()".
Reviewed-by: David Herrmann <dh.herrmann at gmail.com>
Regards
David
> Signed-off-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
> ---
> drivers/gpu/drm/nouveau/core/engine/disp/dport.c | 2 +-
> drivers/gpu/drm/radeon/atombios_dp.c | 2 +-
> drivers/gpu/drm/udl/udl_main.c | 4 ++--
> 3 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dport.c b/drivers/gpu/drm/nouveau/core/engine/disp/dport.c
> index 31cc8fe..054d9cf 100644
> --- a/drivers/gpu/drm/nouveau/core/engine/disp/dport.c
> +++ b/drivers/gpu/drm/nouveau/core/engine/disp/dport.c
> @@ -150,7 +150,7 @@ dp_link_train_update(struct dp_state *dp, u32 delay)
> if (ret)
> return ret;
>
> - DBG("status %*ph\n", 6, dp->stat);
> + DBG("status %6ph\n", dp->stat);
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
> index 32501f6..3569d89 100644
> --- a/drivers/gpu/drm/radeon/atombios_dp.c
> +++ b/drivers/gpu/drm/radeon/atombios_dp.c
> @@ -585,7 +585,7 @@ static bool radeon_dp_get_link_status(struct radeon_connector *radeon_connector,
> return false;
> }
>
> - DRM_DEBUG_KMS("link status %*ph\n", 6, link_status);
> + DRM_DEBUG_KMS("link status %6ph\n", link_status);
> return true;
> }
>
> diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c
> index 0ce2d71..f5ae574 100644
> --- a/drivers/gpu/drm/udl/udl_main.c
> +++ b/drivers/gpu/drm/udl/udl_main.c
> @@ -41,8 +41,8 @@ static int udl_parse_vendor_descriptor(struct drm_device *dev,
> total_len = usb_get_descriptor(usbdev, 0x5f, /* vendor specific */
> 0, desc, MAX_VENDOR_DESCRIPTOR_SIZE);
> if (total_len > 5) {
> - DRM_INFO("vendor descriptor length:%x data:%*ph\n",
> - total_len, 11, desc);
> + DRM_INFO("vendor descriptor length:%x data:%11ph\n",
> + total_len, desc);
>
> if ((desc[0] != total_len) || /* descriptor length */
> (desc[1] != 0x5f) || /* vendor descriptor type */
> --
> 1.8.4.rc0
>
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