linux-kernel - [PATCH 08/10] staging/xgifb: Remove unnecessary bitshifts in XGI

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Date:	Sun,  3 Feb 2013 22:54:37 +0100
From:	Peter Huewe <peterhuewe@....de>
To:	Arnaud Patard <arnaud.patard@...-net.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Miguel Gómez <magomez@...lia.com>,
	Aaro Koskinen <aaro.koskinen@....fi>,
	Peter Huewe <peterhuewe@....de>,
	Sam Hansen <solid.se7en@...il.com>, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 08/10] staging/xgifb: Remove unnecessary bitshifts in XGI_SetCRT1ModeRegs

Since data can only be 0x0000, 0x0035 or 0x0048 we can simply skip the
bit shifting and masking as data & 0xFF is always equal to data and
data & 0xFF00 is always 0.
So we simply use data and 0 directly and save the assignment.

Signed-off-by: Peter Huewe <peterhuewe@....de>
---
 drivers/staging/xgifb/vb_setmode.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
index 6f366f4..1ff1178 100644
--- a/drivers/staging/xgifb/vb_setmode.c
+++ b/drivers/staging/xgifb/vb_setmode.c
@@ -1083,10 +1083,8 @@ static void XGI_SetCRT1ModeRegs(struct xgi_hw_device_info *HwDeviceExtension,
 			data = 0x0048;
 	}
 
-	data2 = data & 0x00FF;
-	xgifb_reg_and_or(pVBInfo->P3d4, 0x19, 0xFF, data2);
-	data2 = (data & 0xFF00) >> 8;
-	xgifb_reg_and_or(pVBInfo->P3d4, 0x19, 0xFC, data2);
+	xgifb_reg_and_or(pVBInfo->P3d4, 0x19, 0xFF, data);
+	xgifb_reg_and_or(pVBInfo->P3d4, 0x19, 0xFC, 0);
 
 	if (modeflag & HalfDCLK)
 		xgifb_reg_and_or(pVBInfo->P3c4, 0x01, 0xF7, 0x08);
-- 
1.7.8.6

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