[PATCH v2 07/10] rt2x00: convert rt2*_bbp_read return type

From: Arnd Bergmann
Date: Wed May 17 2017 - 10:48:18 EST

This is a semi-automated conversion to change *_bbp_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:\(\<rt.*_bbp_read\>(.*, .*\), &\(.*\));:\2 = \1);:' \
-i 's:\(\<rt.*_bbp_dcoc_read\>(.*, .*\), &\(.*\));:\2 = \1);:' \
-i 's:= _\(rt.*_bbp_read\):\1:' drivers/net/wireless/ralink/rt2x00/*

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/net/wireless/ralink/rt2x00/rt2400pci.c | 29 +++----
drivers/net/wireless/ralink/rt2x00/rt2500pci.c | 27 +++---
drivers/net/wireless/ralink/rt2x00/rt2500usb.c | 29 +++----
drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 116 ++++++++++++-------------
drivers/net/wireless/ralink/rt2x00/rt61pci.c | 42 ++++-----
drivers/net/wireless/ralink/rt2x00/rt73usb.c | 36 ++++----
6 files changed, 119 insertions(+), 160 deletions(-)

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c b/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
index 3607261df199..0ab3d571aba4 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
@@ -77,10 +77,11 @@ static void rt2400pci_bbp_write(struct rt2x00_dev *rt2x00dev,
mutex_unlock(&rt2x00dev->csr_mutex);
}

-static void rt2400pci_bbp_read(struct rt2x00_dev *rt2x00dev,
- const unsigned int word, u8 *value)
+static u8 rt2400pci_bbp_read(struct rt2x00_dev *rt2x00dev,
+ const unsigned int word)
{
u32 reg;
+ u8 value;

mutex_lock(&rt2x00dev->csr_mutex);

@@ -103,9 +104,11 @@ static void rt2400pci_bbp_read(struct rt2x00_dev *rt2x00dev,
WAIT_FOR_BBP(rt2x00dev, &reg);
}

- *value = rt2x00_get_field32(reg, BBPCSR_VALUE);
+ value = rt2x00_get_field32(reg, BBPCSR_VALUE);

mutex_unlock(&rt2x00dev->csr_mutex);
+
+ return value;
}

static void rt2400pci_rf_write(struct rt2x00_dev *rt2x00dev,
@@ -164,16 +167,6 @@ static void rt2400pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
}

#ifdef CONFIG_RT2X00_LIB_DEBUGFS
-static u8 _rt2400pci_bbp_read(struct rt2x00_dev *rt2x00dev,
- const unsigned int word)
-{
- u8 value;
-
- rt2400pci_bbp_read(rt2x00dev, word, &value);
-
- return value;
-}
-
static const struct rt2x00debug rt2400pci_rt2x00debug = {
.owner = THIS_MODULE,
.csr = {
@@ -192,7 +185,7 @@ static const struct rt2x00debug rt2400pci_rt2x00debug = {
.word_count = EEPROM_SIZE / sizeof(u16),
},
.bbp = {
- .read = _rt2400pci_bbp_read,
+ .read = rt2400pci_bbp_read,
.write = rt2400pci_bbp_write,
.word_base = BBP_BASE,
.word_size = sizeof(u8),
@@ -418,8 +411,8 @@ static void rt2400pci_config_ant(struct rt2x00_dev *rt2x00dev,
BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
ant->tx == ANTENNA_SW_DIVERSITY);

- rt2400pci_bbp_read(rt2x00dev, 4, &r4);
- rt2400pci_bbp_read(rt2x00dev, 1, &r1);
+ r4 = rt2400pci_bbp_read(rt2x00dev, 4);
+ r1 = rt2400pci_bbp_read(rt2x00dev, 1);

/*
* Configure the TX antenna.
@@ -600,7 +593,7 @@ static void rt2400pci_link_stats(struct rt2x00_dev *rt2x00dev,
/*
* Update False CCA count from register.
*/
- rt2400pci_bbp_read(rt2x00dev, 39, &bbp);
+ bbp = rt2400pci_bbp_read(rt2x00dev, 39);
qual->false_cca = bbp;
}

@@ -921,7 +914,7 @@ static int rt2400pci_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
u8 value;

for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
- rt2400pci_bbp_read(rt2x00dev, 0, &value);
+ value = rt2400pci_bbp_read(rt2x00dev, 0);
if ((value != 0xff) && (value != 0x00))
return 0;
udelay(REGISTER_BUSY_DELAY);
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c b/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
index dc622d60f79d..a4e2f7b8adf1 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
@@ -77,10 +77,11 @@ static void rt2500pci_bbp_write(struct rt2x00_dev *rt2x00dev,
mutex_unlock(&rt2x00dev->csr_mutex);
}

-static void rt2500pci_bbp_read(struct rt2x00_dev *rt2x00dev,
- const unsigned int word, u8 *value)
+static u8 rt2500pci_bbp_read(struct rt2x00_dev *rt2x00dev,
+ const unsigned int word)
{
u32 reg;
+ u8 value;

mutex_lock(&rt2x00dev->csr_mutex);

@@ -103,9 +104,11 @@ static void rt2500pci_bbp_read(struct rt2x00_dev *rt2x00dev,
WAIT_FOR_BBP(rt2x00dev, &reg);
}

- *value = rt2x00_get_field32(reg, BBPCSR_VALUE);
+ value = rt2x00_get_field32(reg, BBPCSR_VALUE);

mutex_unlock(&rt2x00dev->csr_mutex);
+
+ return value;
}

static void rt2500pci_rf_write(struct rt2x00_dev *rt2x00dev,
@@ -164,16 +167,6 @@ static void rt2500pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
}

#ifdef CONFIG_RT2X00_LIB_DEBUGFS
-static u8 _rt2500pci_bbp_read(struct rt2x00_dev *rt2x00dev,
- const unsigned int word)
-{
- u8 value;
-
- rt2500pci_bbp_read(rt2x00dev, word, &value);
-
- return value;
-}
-
static const struct rt2x00debug rt2500pci_rt2x00debug = {
.owner = THIS_MODULE,
.csr = {
@@ -192,7 +185,7 @@ static const struct rt2x00debug rt2500pci_rt2x00debug = {
.word_count = EEPROM_SIZE / sizeof(u16),
},
.bbp = {
- .read = _rt2500pci_bbp_read,
+ .read = rt2500pci_bbp_read,
.write = rt2500pci_bbp_write,
.word_base = BBP_BASE,
.word_size = sizeof(u8),
@@ -426,8 +419,8 @@ static void rt2500pci_config_ant(struct rt2x00_dev *rt2x00dev,
ant->tx == ANTENNA_SW_DIVERSITY);

reg = rt2x00mmio_register_read(rt2x00dev, BBPCSR1);
- rt2500pci_bbp_read(rt2x00dev, 14, &r14);
- rt2500pci_bbp_read(rt2x00dev, 2, &r2);
+ r14 = rt2500pci_bbp_read(rt2x00dev, 14);
+ r2 = rt2500pci_bbp_read(rt2x00dev, 2);

/*
* Configure the TX antenna.
@@ -1059,7 +1052,7 @@ static int rt2500pci_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
u8 value;

for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
- rt2500pci_bbp_read(rt2x00dev, 0, &value);
+ value = rt2500pci_bbp_read(rt2x00dev, 0);
if ((value != 0xff) && (value != 0x00))
return 0;
udelay(REGISTER_BUSY_DELAY);
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2500usb.c b/drivers/net/wireless/ralink/rt2x00/rt2500usb.c
index 70204cecc985..37c6684db4de 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2500usb.c
@@ -153,10 +153,11 @@ static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
mutex_unlock(&rt2x00dev->csr_mutex);
}

-static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
- const unsigned int word, u8 *value)
+static u8 rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
+ const unsigned int word)
{
u16 reg;
+ u8 value;

mutex_lock(&rt2x00dev->csr_mutex);

@@ -179,9 +180,11 @@ static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
reg = rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7);
}

- *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
+ value = rt2x00_get_field16(reg, PHY_CSR7_DATA);

mutex_unlock(&rt2x00dev->csr_mutex);
+
+ return value;
}

static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
@@ -227,16 +230,6 @@ static void _rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
rt2500usb_register_write(rt2x00dev, offset, value);
}

-static u8 _rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
- const unsigned int word)
-{
- u8 value;
-
- rt2500usb_bbp_read(rt2x00dev, word, &value);
-
- return value;
-}
-
static const struct rt2x00debug rt2500usb_rt2x00debug = {
.owner = THIS_MODULE,
.csr = {
@@ -255,7 +248,7 @@ static const struct rt2x00debug rt2500usb_rt2x00debug = {
.word_count = EEPROM_SIZE / sizeof(u16),
},
.bbp = {
- .read = _rt2500usb_bbp_read,
+ .read = rt2500usb_bbp_read,
.write = rt2500usb_bbp_write,
.word_base = BBP_BASE,
.word_size = sizeof(u8),
@@ -530,8 +523,8 @@ static void rt2500usb_config_ant(struct rt2x00_dev *rt2x00dev,
BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
ant->tx == ANTENNA_SW_DIVERSITY);

- rt2500usb_bbp_read(rt2x00dev, 2, &r2);
- rt2500usb_bbp_read(rt2x00dev, 14, &r14);
+ r2 = rt2500usb_bbp_read(rt2x00dev, 2);
+ r14 = rt2500usb_bbp_read(rt2x00dev, 14);
csr5 = rt2500usb_register_read(rt2x00dev, PHY_CSR5);
csr6 = rt2500usb_register_read(rt2x00dev, PHY_CSR6);

@@ -903,7 +896,7 @@ static int rt2500usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
u8 value;

for (i = 0; i < REGISTER_USB_BUSY_COUNT; i++) {
- rt2500usb_bbp_read(rt2x00dev, 0, &value);
+ value = rt2500usb_bbp_read(rt2x00dev, 0);
if ((value != 0xff) && (value != 0x00))
return 0;
udelay(REGISTER_BUSY_DELAY);
@@ -1391,7 +1384,7 @@ static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
* Switch lower vgc bound to current BBP R17 value,
* lower the value a bit for better quality.
*/
- rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
+ bbp = rt2500usb_bbp_read(rt2x00dev, 17);
bbp -= 6;

rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 541e2692766a..35c1206ed6ac 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -110,10 +110,10 @@ static void rt2800_bbp_write(struct rt2x00_dev *rt2x00dev,
mutex_unlock(&rt2x00dev->csr_mutex);
}

-static void rt2800_bbp_read(struct rt2x00_dev *rt2x00dev,
- const unsigned int word, u8 *value)
+static u8 rt2800_bbp_read(struct rt2x00_dev *rt2x00dev, const unsigned int word)
{
u32 reg;
+ u8 value;

mutex_lock(&rt2x00dev->csr_mutex);

@@ -137,9 +137,11 @@ static void rt2800_bbp_read(struct rt2x00_dev *rt2x00dev,
WAIT_FOR_BBP(rt2x00dev, &reg);
}

- *value = rt2x00_get_field32(reg, BBP_CSR_CFG_VALUE);
+ value = rt2x00_get_field32(reg, BBP_CSR_CFG_VALUE);

mutex_unlock(&rt2x00dev->csr_mutex);
+
+ return value;
}

static void rt2800_rfcsr_write(struct rt2x00_dev *rt2x00dev,
@@ -1228,15 +1230,6 @@ void rt2800_clear_beacon(struct queue_entry *entry)
EXPORT_SYMBOL_GPL(rt2800_clear_beacon);

#ifdef CONFIG_RT2X00_LIB_DEBUGFS
-static u8 _rt2800_bbp_read(struct rt2x00_dev *rt2x00dev, const unsigned int word)
-{
- u8 value;
-
- rt2800_bbp_read(rt2x00dev, word, &value);
-
- return value;
-}
-
const struct rt2x00debug rt2800_rt2x00debug = {
.owner = THIS_MODULE,
.csr = {
@@ -1258,7 +1251,7 @@ const struct rt2x00debug rt2800_rt2x00debug = {
.word_count = EEPROM_SIZE / sizeof(u16),
},
.bbp = {
- .read = _rt2800_bbp_read,
+ .read = rt2800_bbp_read,
.write = rt2800_bbp_write,
.word_base = BBP_BASE,
.word_size = sizeof(u8),
@@ -1960,8 +1953,8 @@ void rt2800_config_ant(struct rt2x00_dev *rt2x00dev, struct antenna_setup *ant)
u8 r3;
u16 eeprom;

- rt2800_bbp_read(rt2x00dev, 1, &r1);
- rt2800_bbp_read(rt2x00dev, 3, &r3);
+ r1 = rt2800_bbp_read(rt2x00dev, 1);
+ r3 = rt2800_bbp_read(rt2x00dev, 3);

if (rt2x00_rt(rt2x00dev, RT3572) &&
rt2x00_has_cap_bt_coexist(rt2x00dev))
@@ -2437,12 +2430,12 @@ static void rt2800_config_channel_rf3053(struct rt2x00_dev *rt2x00dev,
const bool txbf_enabled = false; /* TODO */

/* TODO: use TX{0,1,2}FinePowerControl values from EEPROM */
- rt2800_bbp_read(rt2x00dev, 109, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 109);
rt2x00_set_field8(&bbp, BBP109_TX0_POWER, 0);
rt2x00_set_field8(&bbp, BBP109_TX1_POWER, 0);
rt2800_bbp_write(rt2x00dev, 109, bbp);

- rt2800_bbp_read(rt2x00dev, 110, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 110);
rt2x00_set_field8(&bbp, BBP110_TX2_POWER, 0);
rt2800_bbp_write(rt2x00dev, 110, bbp);

@@ -3399,7 +3392,7 @@ static void rt2800_config_alc(struct rt2x00_dev *rt2x00dev,
rt2x00_warn(rt2x00dev, "Wait MAC Status to MAX !!!\n");

if (chan->center_freq > 2457) {
- rt2800_bbp_read(rt2x00dev, 30, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 30);
bbp = 0x40;
rt2800_bbp_write(rt2x00dev, 30, bbp);
rt2800_rfcsr_write(rt2x00dev, 39, 0);
@@ -3408,7 +3401,7 @@ static void rt2800_config_alc(struct rt2x00_dev *rt2x00dev,
else
rt2800_rfcsr_write(rt2x00dev, 42, 0x7b);
} else {
- rt2800_bbp_read(rt2x00dev, 30, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 30);
bbp = 0x1f;
rt2800_bbp_write(rt2x00dev, 30, bbp);
rt2800_rfcsr_write(rt2x00dev, 39, 0x80);
@@ -3429,7 +3422,7 @@ static void rt2800_bbp_write_with_rx_chain(struct rt2x00_dev *rt2x00dev,
u8 chain, reg;

for (chain = 0; chain < rt2x00dev->default_ant.rx_chain_num; chain++) {
- rt2800_bbp_read(rt2x00dev, 27, &reg);
+ reg = rt2800_bbp_read(rt2x00dev, 27);
rt2x00_set_field8(&reg, BBP27_RX_CHAIN_SEL, chain);
rt2800_bbp_write(rt2x00dev, 27, reg);

@@ -3843,11 +3836,11 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
rt2800_iq_calibrate(rt2x00dev, rf->channel);
}

- rt2800_bbp_read(rt2x00dev, 4, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 4);
rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 2 * conf_is_ht40(conf));
rt2800_bbp_write(rt2x00dev, 4, bbp);

- rt2800_bbp_read(rt2x00dev, 3, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 3);
rt2x00_set_field8(&bbp, BBP3_HT40_MINUS, conf_is_ht40_minus(conf));
rt2800_bbp_write(rt2x00dev, 3, bbp);

@@ -3877,7 +3870,7 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
*/
if (rt2x00_rt(rt2x00dev, RT3352) ||
rt2x00_rt(rt2x00dev, RT5350)) {
- rt2800_bbp_read(rt2x00dev, 49, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 49);
rt2x00_set_field8(&bbp, BBP49_UPDATE_FLAG, 0);
rt2800_bbp_write(rt2x00dev, 49, bbp);
}
@@ -3979,7 +3972,7 @@ static int rt2800_get_gain_calibration_delta(struct rt2x00_dev *rt2x00dev)
/*
* Read current TSSI (BBP 49).
*/
- rt2800_bbp_read(rt2x00dev, 49, &current_tssi);
+ current_tssi = rt2800_bbp_read(rt2x00dev, 49);

/*
* Compare TSSI value (BBP49) with the compensation boundaries
@@ -4713,7 +4706,7 @@ static void rt2800_config_txpower_rt28xx(struct rt2x00_dev *rt2x00dev,
} else {
power_ctrl = 0;
}
- rt2800_bbp_read(rt2x00dev, 1, &r1);
+ r1 = rt2800_bbp_read(rt2x00dev, 1);
rt2x00_set_field8(&r1, BBP1_TX_POWER_CTRL, power_ctrl);
rt2800_bbp_write(rt2x00dev, 1, r1);

@@ -5683,7 +5676,7 @@ static int rt2800_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
msleep(1);

for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
- rt2800_bbp_read(rt2x00dev, 0, &value);
+ value = rt2800_bbp_read(rt2x00dev, 0);
if ((value != 0xff) && (value != 0x00))
return 0;
udelay(REGISTER_BUSY_DELAY);
@@ -5697,7 +5690,7 @@ static void rt2800_bbp4_mac_if_ctrl(struct rt2x00_dev *rt2x00dev)
{
u8 value;

- rt2800_bbp_read(rt2x00dev, 4, &value);
+ value = rt2800_bbp_read(rt2x00dev, 4);
rt2x00_set_field8(&value, BBP4_MAC_IF_CTRL, 1);
rt2800_bbp_write(rt2x00dev, 4, value);
}
@@ -5754,7 +5747,7 @@ static void rt2800_disable_unused_dac_adc(struct rt2x00_dev *rt2x00dev)
u16 eeprom;
u8 value;

- rt2800_bbp_read(rt2x00dev, 138, &value);
+ value = rt2800_bbp_read(rt2x00dev, 138);
rt2800_eeprom_read(rt2x00dev, EEPROM_NIC_CONF0, &eeprom);
if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_TXPATH) == 1)
value |= 0x20;
@@ -5938,12 +5931,12 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
rt2800_bbp_write(rt2x00dev, 155, 0x3b);
rt2800_bbp_write(rt2x00dev, 253, 0x04);

- rt2800_bbp_read(rt2x00dev, 47, &value);
+ value = rt2800_bbp_read(rt2x00dev, 47);
rt2x00_set_field8(&value, BBP47_TSSI_ADC6, 1);
rt2800_bbp_write(rt2x00dev, 47, value);

/* Use 5-bit ADC for Acquisition and 8-bit ADC for data */
- rt2800_bbp_read(rt2x00dev, 3, &value);
+ value = rt2800_bbp_read(rt2x00dev, 3);
rt2x00_set_field8(&value, BBP3_ADC_MODE_SWITCH, 1);
rt2x00_set_field8(&value, BBP3_ADC_INIT_MODE, 1);
rt2800_bbp_write(rt2x00dev, 3, value);
@@ -6230,7 +6223,7 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
rt2800_bbp_write(rt2x00dev, 154, 0); /* Clear previously selected antenna */
}

- rt2800_bbp_read(rt2x00dev, 152, &value);
+ value = rt2800_bbp_read(rt2x00dev, 152);
if (ant == 0)
rt2x00_set_field8(&value, BBP152_RX_DEFAULT_ANT, 1);
else
@@ -6248,7 +6241,7 @@ static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)

rt2800_init_bbp_early(rt2x00dev);

- rt2800_bbp_read(rt2x00dev, 105, &value);
+ value = rt2800_bbp_read(rt2x00dev, 105);
rt2x00_set_field8(&value, BBP105_MLD,
rt2x00dev->default_ant.rx_chain_num == 2);
rt2800_bbp_write(rt2x00dev, 105, value);
@@ -6291,7 +6284,7 @@ static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
rt2800_eeprom_read(rt2x00dev, EEPROM_NIC_CONF1, &eeprom);
div_mode = rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_ANT_DIVERSITY);
ant = (div_mode == 3) ? 1 : 0;
- rt2800_bbp_read(rt2x00dev, 152, &value);
+ value = rt2800_bbp_read(rt2x00dev, 152);
if (ant == 0) {
/* Main antenna */
rt2x00_set_field8(&value, BBP152_RX_DEFAULT_ANT, 1);
@@ -6302,7 +6295,7 @@ static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
rt2800_bbp_write(rt2x00dev, 152, value);

if (rt2x00_rt_rev_gte(rt2x00dev, RT5592, REV_RT5592C)) {
- rt2800_bbp_read(rt2x00dev, 254, &value);
+ value = rt2800_bbp_read(rt2x00dev, 254);
rt2x00_set_field8(&value, BBP254_BIT7, 1);
rt2800_bbp_write(rt2x00dev, 254, value);
}
@@ -6328,11 +6321,10 @@ static void rt2800_bbp_dcoc_write(struct rt2x00_dev *rt2x00dev,
rt2800_bbp_write(rt2x00dev, 159, value);
}

-static void rt2800_bbp_dcoc_read(struct rt2x00_dev *rt2x00dev,
- const u8 reg, u8 *value)
+static u8 rt2800_bbp_dcoc_read(struct rt2x00_dev *rt2x00dev, const u8 reg)
{
rt2800_bbp_write(rt2x00dev, 158, reg);
- rt2800_bbp_read(rt2x00dev, 159, value);
+ return rt2800_bbp_read(rt2x00dev, 159);
}

static void rt2800_init_bbp_6352(struct rt2x00_dev *rt2x00dev)
@@ -6340,7 +6332,7 @@ static void rt2800_init_bbp_6352(struct rt2x00_dev *rt2x00dev)
u8 bbp;

/* Apply Maximum Likelihood Detection (MLD) for 2 stream case */
- rt2800_bbp_read(rt2x00dev, 105, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 105);
rt2x00_set_field8(&bbp, BBP105_MLD,
rt2x00dev->default_ant.rx_chain_num == 2);
rt2800_bbp_write(rt2x00dev, 105, bbp);
@@ -6349,7 +6341,7 @@ static void rt2800_init_bbp_6352(struct rt2x00_dev *rt2x00dev)
rt2800_bbp4_mac_if_ctrl(rt2x00dev);

/* Fix I/Q swap issue */
- rt2800_bbp_read(rt2x00dev, 1, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 1);
bbp |= 0x04;
rt2800_bbp_write(rt2x00dev, 1, bbp);

@@ -6622,7 +6614,7 @@ static u8 rt2800_init_rx_filter(struct rt2x00_dev *rt2x00dev, bool bw40,

rt2800_rfcsr_write(rt2x00dev, 24, rfcsr24);

- rt2800_bbp_read(rt2x00dev, 4, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 4);
rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 2 * bw40);
rt2800_bbp_write(rt2x00dev, 4, bbp);

@@ -6643,7 +6635,7 @@ static u8 rt2800_init_rx_filter(struct rt2x00_dev *rt2x00dev, bool bw40,
rt2800_bbp_write(rt2x00dev, 25, 0x90);
msleep(1);

- rt2800_bbp_read(rt2x00dev, 55, &passband);
+ passband = rt2800_bbp_read(rt2x00dev, 55);
if (passband)
break;
}
@@ -6657,7 +6649,7 @@ static u8 rt2800_init_rx_filter(struct rt2x00_dev *rt2x00dev, bool bw40,
rt2800_bbp_write(rt2x00dev, 25, 0x90);
msleep(1);

- rt2800_bbp_read(rt2x00dev, 55, &stopband);
+ stopband = rt2800_bbp_read(rt2x00dev, 55);

if ((passband - stopband) <= filter_target) {
rfcsr24++;
@@ -6713,8 +6705,8 @@ static void rt2800_rx_filter_calibration(struct rt2x00_dev *rt2x00dev)
/*
* Save BBP 25 & 26 values for later use in channel switching (for 3052)
*/
- rt2800_bbp_read(rt2x00dev, 25, &drv_data->bbp25);
- rt2800_bbp_read(rt2x00dev, 26, &drv_data->bbp26);
+ drv_data->bbp25 = rt2800_bbp_read(rt2x00dev, 25);
+ drv_data->bbp26 = rt2800_bbp_read(rt2x00dev, 26);

/*
* Set back to initial state
@@ -6728,7 +6720,7 @@ static void rt2800_rx_filter_calibration(struct rt2x00_dev *rt2x00dev)
/*
* Set BBP back to BW20
*/
- rt2800_bbp_read(rt2x00dev, 4, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 4);
rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 0);
rt2800_bbp_write(rt2x00dev, 4, bbp);
}
@@ -6760,7 +6752,7 @@ static void rt2800_normal_mode_setup_3xxx(struct rt2x00_dev *rt2x00dev)

if (rt2x00_rt(rt2x00dev, RT3090)) {
/* Turn off unused DAC1 and ADC1 to reduce power consumption */
- rt2800_bbp_read(rt2x00dev, 138, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 138);
rt2800_eeprom_read(rt2x00dev, EEPROM_NIC_CONF0, &eeprom);
if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_RXPATH) == 1)
rt2x00_set_field8(&bbp, BBP138_RX_ADC1, 0);
@@ -6846,7 +6838,7 @@ static void rt2800_normal_mode_setup_5xxx(struct rt2x00_dev *rt2x00dev)
u16 eeprom;

/* Turn off unused DAC1 and ADC1 to reduce power consumption */
- rt2800_bbp_read(rt2x00dev, 138, &reg);
+ reg = rt2800_bbp_read(rt2x00dev, 138);
rt2800_eeprom_read(rt2x00dev, EEPROM_NIC_CONF0, &eeprom);
if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_RXPATH) == 1)
rt2x00_set_field8(&reg, BBP138_RX_ADC1, 0);
@@ -7253,7 +7245,7 @@ static void rt3593_post_bbp_init(struct rt2x00_dev *rt2x00dev)
u8 bbp;
bool txbf_enabled = false; /* FIXME */

- rt2800_bbp_read(rt2x00dev, 105, &bbp);
+ bbp = rt2800_bbp_read(rt2x00dev, 105);
if (rt2x00dev->default_ant.rx_chain_num == 1)
rt2x00_set_field8(&bbp, BBP105_MLD, 0);
else
@@ -7367,8 +7359,8 @@ static void rt2800_init_rfcsr_3593(struct rt2x00_dev *rt2x00dev)
drv_data->calibration_bw40 = 0x2f;

/* Save BBP 25 & 26 values for later use in channel switching */
- rt2800_bbp_read(rt2x00dev, 25, &drv_data->bbp25);
- rt2800_bbp_read(rt2x00dev, 26, &drv_data->bbp26);
+ drv_data->bbp25 = rt2800_bbp_read(rt2x00dev, 25);
+ drv_data->bbp26 = rt2800_bbp_read(rt2x00dev, 26);

rt2800_led_open_drain_enable(rt2x00dev);
rt2800_normal_mode_setup_3593(rt2x00dev);
@@ -7662,19 +7654,19 @@ static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev,
{
u8 bbp_val;

- rt2800_bbp_read(rt2x00dev, 21, &bbp_val);
+ bbp_val = rt2800_bbp_read(rt2x00dev, 21);
bbp_val |= 0x1;
rt2800_bbp_write(rt2x00dev, 21, bbp_val);
usleep_range(100, 200);

if (set_bw) {
- rt2800_bbp_read(rt2x00dev, 4, &bbp_val);
+ bbp_val = rt2800_bbp_read(rt2x00dev, 4);
rt2x00_set_field8(&bbp_val, BBP4_BANDWIDTH, 2 * is_ht40);
rt2800_bbp_write(rt2x00dev, 4, bbp_val);
usleep_range(100, 200);
}

- rt2800_bbp_read(rt2x00dev, 21, &bbp_val);
+ bbp_val = rt2800_bbp_read(rt2x00dev, 21);
bbp_val &= (~0x1);
rt2800_bbp_write(rt2x00dev, 21, bbp_val);
usleep_range(100, 200);
@@ -7736,14 +7728,14 @@ static char rt2800_lp_tx_filter_bw_cal(struct rt2x00_dev *rt2x00dev)
cnt = 0;
do {
usleep_range(500, 2000);
- rt2800_bbp_read(rt2x00dev, 159, &bbp_val);
+ bbp_val = rt2800_bbp_read(rt2x00dev, 159);
if (bbp_val == 0x02 || cnt == 20)
break;

cnt++;
} while (cnt < 20);

- rt2800_bbp_dcoc_read(rt2x00dev, 0x39, &bbp_val);
+ bbp_val = rt2800_bbp_dcoc_read(rt2x00dev, 0x39);
cal_val = bbp_val & 0x7F;
if (cal_val >= 0x40)
cal_val -= 128;
@@ -7776,10 +7768,10 @@ static void rt2800_bw_filter_calibration(struct rt2x00_dev *rt2x00dev,
MAC_RF_BYPASS0 = rt2800_register_read(rt2x00dev, RF_BYPASS0);

/* save BBP registers */
- rt2800_bbp_read(rt2x00dev, 23, &savebbpr23);
+ savebbpr23 = rt2800_bbp_read(rt2x00dev, 23);

- rt2800_bbp_dcoc_read(rt2x00dev, 0, &savebbp159r0);
- rt2800_bbp_dcoc_read(rt2x00dev, 2, &savebbp159r2);
+ savebbp159r0 = rt2800_bbp_dcoc_read(rt2x00dev, 0);
+ savebbp159r2 = rt2800_bbp_dcoc_read(rt2x00dev, 2);

/* Save RF registers */
saverfb5r00 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 0);
@@ -7832,7 +7824,7 @@ static void rt2800_bw_filter_calibration(struct rt2x00_dev *rt2x00dev,
rt2800_rfcsr_write_bank(rt2x00dev, 5, 0, rf_val);

/* I-3 */
- rt2800_bbp_read(rt2x00dev, 23, &bbp_val);
+ bbp_val = rt2800_bbp_read(rt2x00dev, 23);
bbp_val &= (~0x1F);
bbp_val |= 0x10;
rt2800_bbp_write(rt2x00dev, 23, bbp_val);
@@ -7885,7 +7877,7 @@ static void rt2800_bw_filter_calibration(struct rt2x00_dev *rt2x00dev,

usleep_range(1000, 2000);

- rt2800_bbp_dcoc_read(rt2x00dev, 2, &bbp_val);
+ bbp_val = rt2800_bbp_dcoc_read(rt2x00dev, 2);
bbp_val &= (~0x6);
rt2800_bbp_dcoc_write(rt2x00dev, 2, bbp_val);

@@ -7893,7 +7885,7 @@ static void rt2800_bw_filter_calibration(struct rt2x00_dev *rt2x00dev,

cal_r32_init = rt2800_lp_tx_filter_bw_cal(rt2x00dev);

- rt2800_bbp_dcoc_read(rt2x00dev, 2, &bbp_val);
+ bbp_val = rt2800_bbp_dcoc_read(rt2x00dev, 2);
bbp_val |= 0x6;
rt2800_bbp_dcoc_write(rt2x00dev, 2, bbp_val);
do_cal:
@@ -7991,7 +7983,7 @@ static void rt2800_bw_filter_calibration(struct rt2x00_dev *rt2x00dev,
rt2800_bbp_dcoc_write(rt2x00dev, 0, savebbp159r0);
rt2800_bbp_dcoc_write(rt2x00dev, 2, savebbp159r2);

- rt2800_bbp_read(rt2x00dev, 4, &bbp_val);
+ bbp_val = rt2800_bbp_read(rt2x00dev, 4);
rt2x00_set_field8(&bbp_val, BBP4_BANDWIDTH,
2 * test_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags));
rt2800_bbp_write(rt2x00dev, 4, bbp_val);
diff --git a/drivers/net/wireless/ralink/rt2x00/rt61pci.c b/drivers/net/wireless/ralink/rt2x00/rt61pci.c
index f2864407eb6c..bd6ed943af3d 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt61pci.c
@@ -86,10 +86,11 @@ static void rt61pci_bbp_write(struct rt2x00_dev *rt2x00dev,
mutex_unlock(&rt2x00dev->csr_mutex);
}

-static void rt61pci_bbp_read(struct rt2x00_dev *rt2x00dev,
- const unsigned int word, u8 *value)
+static u8 rt61pci_bbp_read(struct rt2x00_dev *rt2x00dev,
+ const unsigned int word)
{
u32 reg;
+ u8 value;

mutex_lock(&rt2x00dev->csr_mutex);

@@ -112,9 +113,11 @@ static void rt61pci_bbp_read(struct rt2x00_dev *rt2x00dev,
WAIT_FOR_BBP(rt2x00dev, &reg);
}

- *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
+ value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);

mutex_unlock(&rt2x00dev->csr_mutex);
+
+ return value;
}

static void rt61pci_rf_write(struct rt2x00_dev *rt2x00dev,
@@ -202,15 +205,6 @@ static void rt61pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
}

#ifdef CONFIG_RT2X00_LIB_DEBUGFS
-static u8 _rt61pci_bbp_read(struct rt2x00_dev *rt2x00dev, const unsigned int word)
-{
- u8 value;
-
- rt61pci_bbp_read(rt2x00dev, word, &value);
-
- return value;
-}
-
static const struct rt2x00debug rt61pci_rt2x00debug = {
.owner = THIS_MODULE,
.csr = {
@@ -229,7 +223,7 @@ static const struct rt2x00debug rt61pci_rt2x00debug = {
.word_count = EEPROM_SIZE / sizeof(u16),
},
.bbp = {
- .read = _rt61pci_bbp_read,
+ .read = rt61pci_bbp_read,
.write = rt61pci_bbp_write,
.word_base = BBP_BASE,
.word_size = sizeof(u8),
@@ -639,9 +633,9 @@ static void rt61pci_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
u8 r4;
u8 r77;

- rt61pci_bbp_read(rt2x00dev, 3, &r3);
- rt61pci_bbp_read(rt2x00dev, 4, &r4);
- rt61pci_bbp_read(rt2x00dev, 77, &r77);
+ r3 = rt61pci_bbp_read(rt2x00dev, 3);
+ r4 = rt61pci_bbp_read(rt2x00dev, 4);
+ r77 = rt61pci_bbp_read(rt2x00dev, 77);

rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, rt2x00_rf(rt2x00dev, RF5325));

@@ -685,9 +679,9 @@ static void rt61pci_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
u8 r4;
u8 r77;

- rt61pci_bbp_read(rt2x00dev, 3, &r3);
- rt61pci_bbp_read(rt2x00dev, 4, &r4);
- rt61pci_bbp_read(rt2x00dev, 77, &r77);
+ r3 = rt61pci_bbp_read(rt2x00dev, 3);
+ r4 = rt61pci_bbp_read(rt2x00dev, 4);
+ r77 = rt61pci_bbp_read(rt2x00dev, 77);

rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, rt2x00_rf(rt2x00dev, RF2529));
rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
@@ -739,9 +733,9 @@ static void rt61pci_config_antenna_2529(struct rt2x00_dev *rt2x00dev,
u8 r4;
u8 r77;

- rt61pci_bbp_read(rt2x00dev, 3, &r3);
- rt61pci_bbp_read(rt2x00dev, 4, &r4);
- rt61pci_bbp_read(rt2x00dev, 77, &r77);
+ r3 = rt61pci_bbp_read(rt2x00dev, 3);
+ r4 = rt61pci_bbp_read(rt2x00dev, 4);
+ r77 = rt61pci_bbp_read(rt2x00dev, 77);

/*
* Configure the RX antenna.
@@ -884,7 +878,7 @@ static void rt61pci_config_channel(struct rt2x00_dev *rt2x00dev,

smart = !(rt2x00_rf(rt2x00dev, RF5225) || rt2x00_rf(rt2x00dev, RF2527));

- rt61pci_bbp_read(rt2x00dev, 3, &r3);
+ r3 = rt61pci_bbp_read(rt2x00dev, 3);
rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, smart);
rt61pci_bbp_write(rt2x00dev, 3, r3);

@@ -1658,7 +1652,7 @@ static int rt61pci_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
u8 value;

for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
- rt61pci_bbp_read(rt2x00dev, 0, &value);
+ value = rt61pci_bbp_read(rt2x00dev, 0);
if ((value != 0xff) && (value != 0x00))
return 0;
udelay(REGISTER_BUSY_DELAY);
diff --git a/drivers/net/wireless/ralink/rt2x00/rt73usb.c b/drivers/net/wireless/ralink/rt2x00/rt73usb.c
index 5a64de7304f1..87742f370eea 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt73usb.c
@@ -84,10 +84,11 @@ static void rt73usb_bbp_write(struct rt2x00_dev *rt2x00dev,
mutex_unlock(&rt2x00dev->csr_mutex);
}

-static void rt73usb_bbp_read(struct rt2x00_dev *rt2x00dev,
- const unsigned int word, u8 *value)
+static u8 rt73usb_bbp_read(struct rt2x00_dev *rt2x00dev,
+ const unsigned int word)
{
u32 reg;
+ u8 value;

mutex_lock(&rt2x00dev->csr_mutex);

@@ -110,9 +111,11 @@ static void rt73usb_bbp_read(struct rt2x00_dev *rt2x00dev,
WAIT_FOR_BBP(rt2x00dev, &reg);
}

- *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
+ value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);

mutex_unlock(&rt2x00dev->csr_mutex);
+
+ return value;
}

static void rt73usb_rf_write(struct rt2x00_dev *rt2x00dev,
@@ -147,15 +150,6 @@ static void rt73usb_rf_write(struct rt2x00_dev *rt2x00dev,
}

#ifdef CONFIG_RT2X00_LIB_DEBUGFS
-static u8 _rt73usb_bbp_read(struct rt2x00_dev *rt2x00dev, const unsigned int word)
-{
- u8 value;
-
- rt73usb_bbp_read(rt2x00dev, word, &value);
-
- return value;
-}
-
static const struct rt2x00debug rt73usb_rt2x00debug = {
.owner = THIS_MODULE,
.csr = {
@@ -174,7 +168,7 @@ static const struct rt2x00debug rt73usb_rt2x00debug = {
.word_count = EEPROM_SIZE / sizeof(u16),
},
.bbp = {
- .read = _rt73usb_bbp_read,
+ .read = rt73usb_bbp_read,
.write = rt73usb_bbp_write,
.word_base = BBP_BASE,
.word_size = sizeof(u8),
@@ -589,9 +583,9 @@ static void rt73usb_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
u8 r77;
u8 temp;

- rt73usb_bbp_read(rt2x00dev, 3, &r3);
- rt73usb_bbp_read(rt2x00dev, 4, &r4);
- rt73usb_bbp_read(rt2x00dev, 77, &r77);
+ r3 = rt73usb_bbp_read(rt2x00dev, 3);
+ r4 = rt73usb_bbp_read(rt2x00dev, 4);
+ r77 = rt73usb_bbp_read(rt2x00dev, 77);

rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);

@@ -636,9 +630,9 @@ static void rt73usb_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
u8 r4;
u8 r77;

- rt73usb_bbp_read(rt2x00dev, 3, &r3);
- rt73usb_bbp_read(rt2x00dev, 4, &r4);
- rt73usb_bbp_read(rt2x00dev, 77, &r77);
+ r3 = rt73usb_bbp_read(rt2x00dev, 3);
+ r4 = rt73usb_bbp_read(rt2x00dev, 4);
+ r77 = rt73usb_bbp_read(rt2x00dev, 77);

rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
@@ -771,7 +765,7 @@ static void rt73usb_config_channel(struct rt2x00_dev *rt2x00dev,

smart = !(rt2x00_rf(rt2x00dev, RF5225) || rt2x00_rf(rt2x00dev, RF2527));

- rt73usb_bbp_read(rt2x00dev, 3, &r3);
+ r3 = rt73usb_bbp_read(rt2x00dev, 3);
rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, smart);
rt73usb_bbp_write(rt2x00dev, 3, r3);

@@ -1305,7 +1299,7 @@ static int rt73usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
u8 value;

for (i = 0; i < REGISTER_USB_BUSY_COUNT; i++) {
- rt73usb_bbp_read(rt2x00dev, 0, &value);
+ value = rt73usb_bbp_read(rt2x00dev, 0);
if ((value != 0xff) && (value != 0x00))
return 0;
udelay(REGISTER_BUSY_DELAY);
--
2.9.0