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rt2x00: convert rt2x00mmio_register_read return type

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This is a semi-automated conversion to change rt2x00mmio_register_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:\(rt2x00mmio_register_read(.*, .*\), &\(.*\));:\2 = \1);:' \
    -i 's:_rt2x00mmio_register_read:rt2x00mmio_register_read:' \
	drivers/net/wireless/ralink/rt2x00/*.c

The function itself was modified manually along with the one remaining
caller that was not covered automatically.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Arnd Bergmann
2017-05-17 16:46:56 +02:00
committed by Kalle Valo
parent aea8baa10a
commit 3954b4e306
8 changed files with 252 additions and 259 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/net/wireless/ralink/rt2x00/rt2800mmio.c
View File

@@ -331,7 +331,7 @@ static inline void rt2800mmio_enable_interrupt(struct rt2x00_dev *rt2x00dev,
* access needs locking.
*/
spin_lock_irq(&rt2x00dev->irqmask_lock);
rt2x00mmio_register_read(rt2x00dev, INT_MASK_CSR, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, INT_MASK_CSR);
rt2x00_set_field32(&reg, irq_field, 1);
rt2x00mmio_register_write(rt2x00dev, INT_MASK_CSR, reg);
spin_unlock_irq(&rt2x00dev->irqmask_lock);
@@ -376,12 +376,12 @@ void rt2800mmio_tbtt_tasklet(unsigned long data)
* interval every 64 beacons by 64us to mitigate this effect.
*/
if (drv_data->tbtt_tick == (BCN_TBTT_OFFSET - 2)) {
rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG);
rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_INTERVAL,
(rt2x00dev->beacon_int * 16) - 1);
rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
} else if (drv_data->tbtt_tick == (BCN_TBTT_OFFSET - 1)) {
rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG);
rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_INTERVAL,
(rt2x00dev->beacon_int * 16));
rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
@@ -439,7 +439,7 @@ static void rt2800mmio_txstatus_interrupt(struct rt2x00_dev *rt2x00dev)
* need to lock the kfifo.
*/
for (i = 0; i < rt2x00dev->tx->limit; i++) {
rt2x00mmio_register_read(rt2x00dev, TX_STA_FIFO, &status);
status = rt2x00mmio_register_read(rt2x00dev, TX_STA_FIFO);
if (!rt2x00_get_field32(status, TX_STA_FIFO_VALID))
break;
@@ -460,7 +460,7 @@ irqreturn_t rt2800mmio_interrupt(int irq, void *dev_instance)
u32 reg, mask;
/* Read status and ACK all interrupts */
rt2x00mmio_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, INT_SOURCE_CSR);
rt2x00mmio_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
if (!reg)
@@ -501,7 +501,7 @@ irqreturn_t rt2800mmio_interrupt(int irq, void *dev_instance)
* the tasklet will reenable the appropriate interrupts.
*/
spin_lock(&rt2x00dev->irqmask_lock);
rt2x00mmio_register_read(rt2x00dev, INT_MASK_CSR, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, INT_MASK_CSR);
reg &= mask;
rt2x00mmio_register_write(rt2x00dev, INT_MASK_CSR, reg);
spin_unlock(&rt2x00dev->irqmask_lock);
@@ -521,7 +521,7 @@ void rt2800mmio_toggle_irq(struct rt2x00_dev *rt2x00dev,
* should clear the register to assure a clean state.
*/
if (state == STATE_RADIO_IRQ_ON) {
rt2x00mmio_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, INT_SOURCE_CSR);
rt2x00mmio_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
}
@@ -560,18 +560,18 @@ void rt2800mmio_start_queue(struct data_queue *queue)
switch (queue->qid) {
case QID_RX:
rt2x00mmio_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, MAC_SYS_CTRL);
rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 1);
rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
break;
case QID_BEACON:
rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG);
rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 1);
rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 1);
rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 1);
rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
rt2x00mmio_register_read(rt2x00dev, INT_TIMER_EN, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, INT_TIMER_EN);
rt2x00_set_field32(&reg, INT_TIMER_EN_PRE_TBTT_TIMER, 1);
rt2x00mmio_register_write(rt2x00dev, INT_TIMER_EN, reg);
break;
@@ -613,18 +613,18 @@ void rt2800mmio_stop_queue(struct data_queue *queue)
switch (queue->qid) {
case QID_RX:
rt2x00mmio_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, MAC_SYS_CTRL);
rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 0);
rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
break;
case QID_BEACON:
rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG);
rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 0);
rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 0);
rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 0);
rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
rt2x00mmio_register_read(rt2x00dev, INT_TIMER_EN, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, INT_TIMER_EN);
rt2x00_set_field32(&reg, INT_TIMER_EN_PRE_TBTT_TIMER, 0);
rt2x00mmio_register_write(rt2x00dev, INT_TIMER_EN, reg);
@@ -810,7 +810,7 @@ int rt2800mmio_init_registers(struct rt2x00_dev *rt2x00dev)
/*
* Reset DMA indexes
*/
rt2x00mmio_register_read(rt2x00dev, WPDMA_RST_IDX, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, WPDMA_RST_IDX);
rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX0, 1);
rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX1, 1);
rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX2, 1);
@@ -831,7 +831,7 @@ int rt2800mmio_init_registers(struct rt2x00_dev *rt2x00dev)
rt2x00_rt(rt2x00dev, RT5390) ||
rt2x00_rt(rt2x00dev, RT5392) ||
rt2x00_rt(rt2x00dev, RT5592))) {
rt2x00mmio_register_read(rt2x00dev, AUX_CTRL, &reg);
reg = rt2x00mmio_register_read(rt2x00dev, AUX_CTRL);
rt2x00_set_field32(&reg, AUX_CTRL_FORCE_PCIE_CLK, 1);
rt2x00_set_field32(&reg, AUX_CTRL_WAKE_PCIE_EN, 1);
rt2x00mmio_register_write(rt2x00dev, AUX_CTRL, reg);