From: Oleksij Rempel Date: Sun, 22 Mar 2015 18:29:53 +0000 (+0100) Subject: ath9k: use one shot read in ath9k_hw_update_mibstats X-Git-Tag: v4.1-rc1~128^2~95^2~16 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=9c05babd933e1c4a811867c4d5aa170d788eeaf9;p=linux.git ath9k: use one shot read in ath9k_hw_update_mibstats this will reduce some overhead on usb bus. Signed-off-by: Oleksij Rempel Signed-off-by: Kalle Valo --- diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c index ca01d17d130f..25e45e4d1a60 100644 --- a/drivers/net/wireless/ath/ath9k/ani.c +++ b/drivers/net/wireless/ath/ath9k/ani.c @@ -107,11 +107,21 @@ static const struct ani_cck_level_entry cck_level_table[] = { static void ath9k_hw_update_mibstats(struct ath_hw *ah, struct ath9k_mib_stats *stats) { - stats->ackrcv_bad += REG_READ(ah, AR_ACK_FAIL); - stats->rts_bad += REG_READ(ah, AR_RTS_FAIL); - stats->fcs_bad += REG_READ(ah, AR_FCS_FAIL); - stats->rts_good += REG_READ(ah, AR_RTS_OK); - stats->beacons += REG_READ(ah, AR_BEACON_CNT); + u32 addr[5] = {AR_RTS_OK, AR_RTS_FAIL, AR_ACK_FAIL, + AR_FCS_FAIL, AR_BEACON_CNT}; + u32 data[5]; + + REG_READ_MULTI(ah, &addr[0], &data[0], 5); + /* AR_RTS_OK */ + stats->rts_good += data[0]; + /* AR_RTS_FAIL */ + stats->rts_bad += data[1]; + /* AR_ACK_FAIL */ + stats->ackrcv_bad += data[2]; + /* AR_FCS_FAIL */ + stats->fcs_bad += data[3]; + /* AR_BEACON_CNT */ + stats->beacons += data[4]; } static void ath9k_ani_restart(struct ath_hw *ah)