[PATCH] DRM: Simplify code using is_power_of_2() function.

[Robert P. J. Day]

Signed-off-by: Robert P. J. Day <rpj...@crashcourse.ca>

---

diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c 
b/drivers/gpu/drm/i915/i915_gem_tiling.c
index f27e523..ef7e227 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -27,6 +27,7 @@

 #include "linux/string.h"
 #include "linux/bitops.h"
+#include "linux/log2.h"
 #include "drmP.h"
 #include "drm.h"
 #include "i915_drm.h"
@@ -245,7 +246,7 @@ i915_tiling_ok(struct drm_device *dev, int stride, int 
size, int tiling_mode)
        if (stride < tile_width)
                return false;

-       if (stride & (stride - 1))
+       if (!is_power_of_2(stride))
                return false;

        /* We don't handle the aperture area covered by the fence being bigger

========================================================================
Robert P. J. Day                               Waterloo, Ontario, CANADA

        Linux Consulting, Training and Annoying Kernel Pedantry.

Web page:                                          http://crashcourse.ca
Linked In:                             http://www.linkedin.com/in/rpjday
Twitter:                                       http://twitter.com/rpjday
========================================================================

------------------------------------------------------------------------------
Crystal Reports &#45; New Free Runtime and 30 Day Trial
Check out the new simplified licensign option that enables unlimited
royalty&#45;free distribution of the report engine for externally facing 
server and web deployment.
http://p.sf.net/sfu/businessobjects
--
_______________________________________________
Dri-devel mailing list
Dri-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dri-devel