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ath9k_hw: embed the ath_ops callbacks in the ath_hw struct 

With this change, loading the address to a register read/write function
costs only one pointer dereference instead of two. On MIPS this reduces
ath9k_hw binary size from 326k down to 321k.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2011-03-23 20:57:24 +01:00 committed by John W. Linville
parent ec15e68ba6
commit f9f84e96f6
3 changed files with 18 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/net/wireless/ath/ath9k/htc_drv_init.c
View File

@ -430,14 +430,6 @@ static void ath9k_regwrite_flush(void *hw_priv)
mutex_unlock(&priv->wmi->multi_write_mutex);
}
static const struct ath_ops ath9k_common_ops = {
.read = ath9k_regread,
.multi_read = ath9k_multi_regread,
.write = ath9k_regwrite,
.enable_write_buffer = ath9k_enable_regwrite_buffer,
.write_flush = ath9k_regwrite_flush,
};
static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
{
*csz = L1_CACHE_BYTES >> 2;
@ -658,10 +650,15 @@ static int ath9k_init_priv(struct ath9k_htc_priv *priv,
ah->hw_version.subsysid = 0; /* FIXME */
ah->hw_version.usbdev = drv_info;
ah->ah_flags |= AH_USE_EEPROM;
ah->reg_ops.read = ath9k_regread;
ah->reg_ops.multi_read = ath9k_multi_regread;
ah->reg_ops.write = ath9k_regwrite;
ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
ah->reg_ops.write_flush = ath9k_regwrite_flush;
priv->ah = ah;
common = ath9k_hw_common(ah);
common->ops = &ath9k_common_ops;
common->ops = &ah->reg_ops;
common->bus_ops = &ath9k_usb_bus_ops;
common->ah = ah;
common->hw = priv->hw;

16
drivers/net/wireless/ath/ath9k/hw.h
View File

@ -65,24 +65,24 @@
/* Register read/write primitives */
#define REG_WRITE(_ah, _reg, _val) \
ath9k_hw_common(_ah)->ops->write((_ah), (_val), (_reg))
(_ah)->reg_ops.write((_ah), (_val), (_reg))
#define REG_READ(_ah, _reg) \
ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
(_ah)->reg_ops.read((_ah), (_reg))
#define REG_READ_MULTI(_ah, _addr, _val, _cnt) \
ath9k_hw_common(_ah)->ops->multi_read((_ah), (_addr), (_val), (_cnt))
(_ah)->reg_ops.multi_read((_ah), (_addr), (_val), (_cnt))
#define ENABLE_REGWRITE_BUFFER(_ah) \
do { \
if (ath9k_hw_common(_ah)->ops->enable_write_buffer) \
ath9k_hw_common(_ah)->ops->enable_write_buffer((_ah)); \
if ((_ah)->reg_ops.enable_write_buffer) \
(_ah)->reg_ops.enable_write_buffer((_ah)); \
} while (0)
#define REGWRITE_BUFFER_FLUSH(_ah) \
do { \
if (ath9k_hw_common(_ah)->ops->write_flush) \
ath9k_hw_common(_ah)->ops->write_flush((_ah)); \
if ((_ah)->reg_ops.write_flush) \
(_ah)->reg_ops.write_flush((_ah)); \
} while (0)
#define SM(_v, _f) (((_v) << _f##_S) & _f)
@ -657,6 +657,8 @@ struct ath_nf_limits {
#define AH_UNPLUGGED 0x2 /* The card has been physically removed. */
struct ath_hw {
struct ath_ops reg_ops;
struct ieee80211_hw *hw;
struct ath_common common;
struct ath9k_hw_version hw_version;

9
drivers/net/wireless/ath/ath9k/init.c
View File

@ -196,11 +196,6 @@ static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset)
return val;
}
static const struct ath_ops ath9k_common_ops = {
.read = ath9k_ioread32,
.write = ath9k_iowrite32,
};
/**************************/
/* Initialization */
/**************************/
@ -551,6 +546,8 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
ah->hw = sc->hw;
ah->hw_version.devid = devid;
ah->hw_version.subsysid = subsysid;
ah->reg_ops.read = ath9k_ioread32;
ah->reg_ops.write = ath9k_iowrite32;
sc->sc_ah = ah;
if (!pdata) {
@ -563,7 +560,7 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
}
common = ath9k_hw_common(ah);
common->ops = &ath9k_common_ops;
common->ops = &ah->reg_ops;
common->bus_ops = bus_ops;
common->ah = ah;
common->hw = sc->hw;