This is a semi-automated conversion to change rt2x00_rf_read()
to return the register contents instead of passing them by value,
resulting in much better object code. The majority of the patch
was done using:

sed -i 's:\(\<rt2x00_rf_read\>(.*, .*\), &\(.*\));:\2 = \1);:' \
        drivers/net/wireless/ralink/rt2x00/rt*

Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
 drivers/net/wireless/ralink/rt2x00/rt2400pci.c |  2 +-
 drivers/net/wireless/ralink/rt2x00/rt2500pci.c |  4 ++--
 drivers/net/wireless/ralink/rt2x00/rt2500usb.c |  4 ++--
 drivers/net/wireless/ralink/rt2x00/rt2800lib.c |  2 +-
 drivers/net/wireless/ralink/rt2x00/rt2x00.h    | 11 ++---------
 drivers/net/wireless/ralink/rt2x00/rt61pci.c   | 10 +++++-----
 drivers/net/wireless/ralink/rt2x00/rt73usb.c   | 10 +++++-----
 7 files changed, 18 insertions(+), 25 deletions(-)

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c 
b/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
index 3ba9a1674e1d..d41832292db2 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
@@ -199,7 +199,7 @@ static const struct rt2x00debug rt2400pci_rt2x00debug = {
                .word_count     = BBP_SIZE / sizeof(u8),
        },
        .rf     = {
-               .read           = _rt2x00_rf_read,
+               .read           = rt2x00_rf_read,
                .write          = rt2400pci_rf_write,
                .word_base      = RF_BASE,
                .word_size      = sizeof(u32),
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c 
b/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
index d9b061b73e83..232feba0773f 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
@@ -199,7 +199,7 @@ static const struct rt2x00debug rt2500pci_rt2x00debug = {
                .word_count     = BBP_SIZE / sizeof(u8),
        },
        .rf     = {
-               .read           = _rt2x00_rf_read,
+               .read           = rt2x00_rf_read,
                .write          = rt2500pci_rf_write,
                .word_base      = RF_BASE,
                .word_size      = sizeof(u32),
@@ -556,7 +556,7 @@ static void rt2500pci_config_txpower(struct rt2x00_dev 
*rt2x00dev,
 {
        u32 rf3;
 
-       rt2x00_rf_read(rt2x00dev, 3, &rf3);
+       rf3 = rt2x00_rf_read(rt2x00dev, 3);
        rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
        rt2500pci_rf_write(rt2x00dev, 3, rf3);
 }
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2500usb.c 
b/drivers/net/wireless/ralink/rt2x00/rt2500usb.c
index 5bd160f732de..9cff9ddafb72 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2500usb.c
@@ -268,7 +268,7 @@ static const struct rt2x00debug rt2500usb_rt2x00debug = {
                .word_count     = BBP_SIZE / sizeof(u8),
        },
        .rf     = {
-               .read           = _rt2x00_rf_read,
+               .read           = rt2x00_rf_read,
                .write          = rt2500usb_rf_write,
                .word_base      = RF_BASE,
                .word_size      = sizeof(u32),
@@ -639,7 +639,7 @@ static void rt2500usb_config_txpower(struct rt2x00_dev 
*rt2x00dev,
 {
        u32 rf3;
 
-       rt2x00_rf_read(rt2x00dev, 3, &rf3);
+       rf3 = rt2x00_rf_read(rt2x00dev, 3);
        rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
        rt2500usb_rf_write(rt2x00dev, 3, rf3);
 }
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c 
b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 9b8c19dcdb2c..fef53d6a888a 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -1265,7 +1265,7 @@ const struct rt2x00debug rt2800_rt2x00debug = {
                .word_count     = BBP_SIZE / sizeof(u8),
        },
        .rf     = {
-               .read           = _rt2x00_rf_read,
+               .read           = rt2x00_rf_read,
                .write          = rt2800_rf_write,
                .word_base      = RF_BASE,
                .word_size      = sizeof(u32),
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00.h 
b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
index f2ae33bf2ef2..36791f7ae2ce 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
@@ -1049,15 +1049,8 @@ struct rt2x00_bar_list_entry {
  * Generic RF access.
  * The RF is being accessed by word index.
  */
-static inline void rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
-                                 const unsigned int word, u32 *data)
-{
-       BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
-       *data = rt2x00dev->rf[word - 1];
-}
-
-static inline u32 _rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
-                                 const unsigned int word)
+static inline u32 rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
+                                const unsigned int word)
 {
        BUG_ON(word < 1 || word > rt2x00dev->ops->rf_size / sizeof(u32));
        return rt2x00dev->rf[word - 1];
diff --git a/drivers/net/wireless/ralink/rt2x00/rt61pci.c 
b/drivers/net/wireless/ralink/rt2x00/rt61pci.c
index efe8a766b251..147d1d2cc0a6 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt61pci.c
@@ -236,7 +236,7 @@ static const struct rt2x00debug rt61pci_rt2x00debug = {
                .word_count     = BBP_SIZE / sizeof(u8),
        },
        .rf     = {
-               .read           = _rt2x00_rf_read,
+               .read           = rt2x00_rf_read,
                .write          = rt61pci_rf_write,
                .word_base      = RF_BASE,
                .word_size      = sizeof(u32),
@@ -922,10 +922,10 @@ static void rt61pci_config_txpower(struct rt2x00_dev 
*rt2x00dev,
 {
        struct rf_channel rf;
 
-       rt2x00_rf_read(rt2x00dev, 1, &rf.rf1);
-       rt2x00_rf_read(rt2x00dev, 2, &rf.rf2);
-       rt2x00_rf_read(rt2x00dev, 3, &rf.rf3);
-       rt2x00_rf_read(rt2x00dev, 4, &rf.rf4);
+       rf.rf1 = rt2x00_rf_read(rt2x00dev, 1);
+       rf.rf2 = rt2x00_rf_read(rt2x00dev, 2);
+       rf.rf3 = rt2x00_rf_read(rt2x00dev, 3);
+       rf.rf4 = rt2x00_rf_read(rt2x00dev, 4);
 
        rt61pci_config_channel(rt2x00dev, &rf, txpower);
 }
diff --git a/drivers/net/wireless/ralink/rt2x00/rt73usb.c 
b/drivers/net/wireless/ralink/rt2x00/rt73usb.c
index 5db174922120..a36dee1a4f20 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt73usb.c
@@ -181,7 +181,7 @@ static const struct rt2x00debug rt73usb_rt2x00debug = {
                .word_count     = BBP_SIZE / sizeof(u8),
        },
        .rf     = {
-               .read           = _rt2x00_rf_read,
+               .read           = rt2x00_rf_read,
                .write          = rt73usb_rf_write,
                .word_base      = RF_BASE,
                .word_size      = sizeof(u32),
@@ -805,10 +805,10 @@ static void rt73usb_config_txpower(struct rt2x00_dev 
*rt2x00dev,
 {
        struct rf_channel rf;
 
-       rt2x00_rf_read(rt2x00dev, 1, &rf.rf1);
-       rt2x00_rf_read(rt2x00dev, 2, &rf.rf2);
-       rt2x00_rf_read(rt2x00dev, 3, &rf.rf3);
-       rt2x00_rf_read(rt2x00dev, 4, &rf.rf4);
+       rf.rf1 = rt2x00_rf_read(rt2x00dev, 1);
+       rf.rf2 = rt2x00_rf_read(rt2x00dev, 2);
+       rf.rf3 = rt2x00_rf_read(rt2x00dev, 3);
+       rf.rf4 = rt2x00_rf_read(rt2x00dev, 4);
 
        rt73usb_config_channel(rt2x00dev, &rf, txpower);
 }
-- 
2.9.0

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