commit 4f5af6eb3d17f8e343597ea99d97eb2f2905b2fb
author Ivo van Doorn <ivdoorn@gmail.com> Sat Oct 06 14:16:30 2007 +0200
committer David S. Miller <davem@sunset.davemloft.net> Wed Oct 10 16:55:15 2007 -0700
tree 7c35cacd6167c90a8846da2c04f64e56c8fd1f9f
parent 5cbf830e137d1b6057cb6b553a8ebbb7d1b9343f

[PATCH] rt2x00: Small optimizations

Make some small optimizations by removing
some simple if-statements.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2500usb.c

diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index f536ff1..ef8dffb 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -326,10 +326,8 @@
 	rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
 
 	rt2500usb_register_read(rt2x00dev, TXRX_CSR10, &reg);
-	if (preamble == SHORT_PREAMBLE)
-		rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE, 1);
-	else
-		rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE, 0);
+	rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE,
+			   (preamble == SHORT_PREAMBLE));
 	rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
 }
 

drivers/net/wireless/rt2x00/rt61pci.c

diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 8011523..cd22817 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -357,10 +357,8 @@
 	rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
 
 	rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, &reg);
-	if (preamble == SHORT_PREAMBLE)
-		rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE, 1);
-	else
-		rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE, 0);
+	rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE,
+			   (preamble == SHORT_PREAMBLE));
 	rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg);
 }
 

drivers/net/wireless/rt2x00/rt73usb.c

diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 4a78ca7..9e1bf4d 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -195,12 +195,13 @@
 	reg = 0;
 	rt2x00_set_field32(&reg, PHY_CSR4_VALUE, value);
 
-	if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
-	    rt2x00_rf(&rt2x00dev->chip, RF2527))
-		rt2x00_set_field32(&reg, PHY_CSR4_NUMBER_OF_BITS, 21);
-	else
-		rt2x00_set_field32(&reg, PHY_CSR4_NUMBER_OF_BITS, 20);
-
+	/*
+	 * RF5225 and RF2527 contain 21 bits per RF register value,
+	 * all others contain 20 bits.
+	 */
+	rt2x00_set_field32(&reg, PHY_CSR4_NUMBER_OF_BITS,
+			   20 + !!(rt2x00_rf(&rt2x00dev->chip, RF5225) ||
+				   rt2x00_rf(&rt2x00dev->chip, RF2527)));
 	rt2x00_set_field32(&reg, PHY_CSR4_IF_SELECT, 0);
 	rt2x00_set_field32(&reg, PHY_CSR4_BUSY, 1);
 
@@ -331,10 +332,8 @@
 	rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 
 	rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
-	if (preamble == SHORT_PREAMBLE)
-		rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE, 1);
-	else
-		rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE, 0);
+	rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE,
+			   (preamble == SHORT_PREAMBLE));
 	rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
 }