linux-kernel - [PATCH 1/1] drivers/video/fbdev/riva/riva

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Message-Id: <20140520184213.e917b4c5f8f175533372b10d@skynet.be>
Date:	Tue, 20 May 2014 18:42:13 +0200
From:	Fabian Frederick <fabf@...net.be>
To:	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	akpm <akpm@...ux-foundation.org>
Subject: [PATCH 1/1] drivers/video/fbdev/riva/riva_hw.c: replace shift loop
 by ilog2


Cc: Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Fabian Frederick <fabf@...net.be>
---
 drivers/video/fbdev/riva/riva_hw.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/video/fbdev/riva/riva_hw.c b/drivers/video/fbdev/riva/riva_hw.c
index 78fdbf5..dae3504 100644
--- a/drivers/video/fbdev/riva/riva_hw.c
+++ b/drivers/video/fbdev/riva/riva_hw.c
@@ -640,9 +640,7 @@ static void nv3UpdateArbitrationSettings
     if (fifo_data.valid)
     {
         int  b = fifo_data.graphics_burst_size >> 4;
-        *burst = 0;
-        while (b >>= 1)
-	    (*burst)++;
+	*burst = ilog2(b);
         *lwm   = fifo_data.graphics_lwm >> 3;
     }
     else
@@ -831,9 +829,7 @@ static void nv4UpdateArbitrationSettings
     if (fifo_data.valid)
     {
         int  b = fifo_data.graphics_burst_size >> 4;
-        *burst = 0;
-        while (b >>= 1)
-	    (*burst)++;
+	*burst = ilog2(b);
         *lwm   = fifo_data.graphics_lwm >> 3;
     }
 }
@@ -1096,9 +1092,7 @@ static void nv10UpdateArbitrationSettings
     if (fifo_data.valid)
     {
         int  b = fifo_data.graphics_burst_size >> 4;
-        *burst = 0;
-        while (b >>= 1)
-	    (*burst)++;
+	*burst = ilog2(b);
         *lwm   = fifo_data.graphics_lwm >> 3;
     }
 }
@@ -1150,9 +1144,7 @@ static void nForceUpdateArbitrationSettings
     if (fifo_data.valid)
     {
         int  b = fifo_data.graphics_burst_size >> 4;
-        *burst = 0;
-        while (b >>= 1)
-	    (*burst)++;
+	*burst = ilog2(b);
         *lwm   = fifo_data.graphics_lwm >> 3;
     }
 }
-- 
1.8.4.5
--
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