tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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>
authored by
Janusz Dziedzic
and committed by
Kalle Valo
05a85a6c
02edab5b
+4
-18
+4
-18
drivers/net/wireless/ath/ath9k/common-beacon.c
+4
-18
drivers/net/wireless/ath/ath9k/common-beacon.c
···
18
18
19
19
#define FUDGE 2
20
20
21
-
/* Calculate the modulo of a 64 bit TSF snapshot with a TU divisor */
22
-
static u32 ath9k_mod_tsf64_tu(u64 tsf, u32 div_tu)
23
-
{
24
-
u32 tsf_mod, tsf_hi, tsf_lo, mod_hi, mod_lo;
25
-
26
-
tsf_mod = tsf & (BIT(10) - 1);
27
-
tsf_hi = tsf >> 32;
28
-
tsf_lo = ((u32) tsf) >> 10;
29
-
30
-
mod_hi = tsf_hi % div_tu;
31
-
mod_lo = ((mod_hi << 22) + tsf_lo) % div_tu;
32
-
33
-
return (mod_lo << 10) | tsf_mod;
34
-
}
35
-
36
21
static u32 ath9k_get_next_tbtt(struct ath_hw *ah, u64 tsf,
37
22
unsigned int interval)
38
23
{
39
-
unsigned int offset;
24
+
unsigned int offset, divisor;
40
25
41
26
tsf += TU_TO_USEC(FUDGE + ah->config.sw_beacon_response_time);
42
-
offset = ath9k_mod_tsf64_tu(tsf, interval);
27
+
divisor = TU_TO_USEC(interval);
28
+
div_u64_rem(tsf, divisor, &offset);
43
29
44
-
return (u32) tsf + TU_TO_USEC(interval) - offset;
30
+
return (u32) tsf + divisor - offset;
45
31
}
46
32
47
33
/*