diff mbox

[03/10] i915: Replace "hweight8(dev_priv->info.subslice_7eu[i]) != 1" with "!is_power_of_2(dev_priv->info.subslice_7eu[i])"

Message ID 1449397590-14292-1-git-send-email-zhaoxiu.zeng@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Zhaoxiu Zeng Dec. 6, 2015, 10:26 a.m. UTC
From: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>

Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Jani Nikula Dec. 7, 2015, 8:33 a.m. UTC | #1
On Sun, 06 Dec 2015, Zhaoxiu Zeng <zhaoxiu.zeng@gmail.com> wrote:
> From: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
>
> Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>

I'd like to see a commit message describing what is done and why, even
for trivial changes. Now the subject line is essentially the diff in
plain English, which adds no information to the patch itself.

It doesn't even say that this should be a non-functional change.

BR,
Jani.


> ---
>  drivers/gpu/drm/i915/intel_ringbuffer.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
> index 9461a23..16c8cf1 100644
> --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
> +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
> @@ -27,6 +27,7 @@
>   *
>   */
>  
> +#include <linux/log2.h>
>  #include <drm/drmP.h>
>  #include "i915_drv.h"
>  #include <drm/i915_drm.h>
> @@ -1000,7 +1001,7 @@ static int skl_tune_iz_hashing(struct intel_engine_cs *ring)
>  		 * Only consider slices where one, and only one, subslice has 7
>  		 * EUs
>  		 */
> -		if (hweight8(dev_priv->info.subslice_7eu[i]) != 1)
> +		if (!is_power_of_2(dev_priv->info.subslice_7eu[i]))
>  			continue;
>  
>  		/*
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 9461a23..16c8cf1 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -27,6 +27,7 @@ 
  *
  */
 
+#include <linux/log2.h>
 #include <drm/drmP.h>
 #include "i915_drv.h"
 #include <drm/i915_drm.h>
@@ -1000,7 +1001,7 @@  static int skl_tune_iz_hashing(struct intel_engine_cs *ring)
 		 * Only consider slices where one, and only one, subslice has 7
 		 * EUs
 		 */
-		if (hweight8(dev_priv->info.subslice_7eu[i]) != 1)
+		if (!is_power_of_2(dev_priv->info.subslice_7eu[i]))
 			continue;
 
 		/*