diff options
| author | Janusz Dziedzic <janusz.dziedzic@tieto.com> | 2015-11-27 09:37:18 +0100 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2015-12-08 16:51:05 +0200 |
| commit | 05a85a6c42b59cd97d49314ad3d1939039eb9aee (patch) | |
| tree | 2f75351967558d78b3b744b898f365eb0ec5ded3 | |
| parent | 02edab5b5f82fcb35696b2606e840a3ec87d7954 (diff) | |
ath9k: remove ath9k_mod_tsf64_tu
Remove ath9k_mod_tsf64_tu() function while we could
use div_u64_rem() function.
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/common-beacon.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/drivers/net/wireless/ath/ath9k/common-beacon.c b/drivers/net/wireless/ath/ath9k/common-beacon.c index 6ad44470d0f2..01d6d3205a65 100644 --- a/drivers/net/wireless/ath/ath9k/common-beacon.c +++ b/drivers/net/wireless/ath/ath9k/common-beacon.c @@ -18,30 +18,16 @@ #define FUDGE 2 -/* 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_hw *ah, u64 tsf, unsigned int interval) { - unsigned int offset; + unsigned int offset, divisor; tsf += TU_TO_USEC(FUDGE + ah->config.sw_beacon_response_time); - offset = ath9k_mod_tsf64_tu(tsf, interval); + divisor = TU_TO_USEC(interval); + div_u64_rem(tsf, divisor, &offset); - return (u32) tsf + TU_TO_USEC(interval) - offset; + return (u32) tsf + divisor - offset; } /* |