[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>

3 files changed, 13 insertions, 18 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index f536ff1b5c4..ef8dffbdffe 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -326,10 +326,8 @@ static void rt2500usb_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
         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);
 }
 
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 8011523962a..cd22817cced 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -357,10 +357,8 @@ static void rt61pci_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
         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);
 }
 
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 4a78ca79c94..9e1bf4d77e1 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -195,12 +195,13 @@ rf_write:
         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 @@ static void rt73usb_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
         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);
 }