Commit 6a77dd33 authored by Oleksij Rempel's avatar Oleksij Rempel Committed by John W. Linville
Browse files

ath9k: remove unused ath9k_get_next_tbtt 



Signed-off-by: default avatarOleksij Rempel <linux@rempel-privat.de>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent fa7b52fa

drivers/net/wireless/ath/ath9k/beacon.c

+0 −27
Original line number Diff line number Diff line
@@ -447,33 +447,6 @@ static void ath9k_beacon_init(struct ath_softc *sc, u32 nexttbtt, 
	ath9k_hw_enable_interrupts(ah);

}



/* Calculate the modulo of a 64 bit TSF snapshot with a TU divisor */

static u32 ath9k_mod_tsf64_tu(u64 tsf, u32 div_tu)

{

	u32 tsf_mod, tsf_hi, tsf_lo, mod_hi, mod_lo;



	tsf_mod = tsf & (BIT(10) - 1);

	tsf_hi = tsf >> 32;

	tsf_lo = ((u32) tsf) >> 10;



	mod_hi = tsf_hi % div_tu;

	mod_lo = ((mod_hi << 22) + tsf_lo) % div_tu;



	return (mod_lo << 10) | tsf_mod;

}



static u32 ath9k_get_next_tbtt(struct ath_softc *sc, u64 tsf,

			       unsigned int interval)

{

	struct ath_hw *ah = sc->sc_ah;

	unsigned int offset;



	tsf += TU_TO_USEC(FUDGE + ah->config.sw_beacon_response_time);

	offset = ath9k_mod_tsf64_tu(tsf, interval);



	return (u32) tsf + TU_TO_USEC(interval) - offset;

}



/*

 * For multi-bss ap support beacons are either staggered evenly over N slots or

 * burst together.  For the former arrange for the SWBA to be delivered for each