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backports: ath9k fix ht40 init.

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Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
This commit is contained in:
Arne Fitzenreiter
2016-04-25 18:02:53 +02:00
parent a03527d459
commit 875bd87bbd
5 changed files with 65 additions and 0 deletions
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56
src/patches/backports-4.2.6-1-ath9k_add_missing_mask_init.patch Normal file
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@@ -0,0 +1,56 @@
by moving common code to ar5008_hw_cmn_spur_mitigate i forgot to move
mask_m & mask_p initialisation. This coused a performance regression
on ar9281.
Fixes: f911085ffa88 ("ath9k: split ar5008_hw_spur_mitigate and reuse common
code in ar9002_hw_spur_mitigate.")
Reported-by: Gustav Frederiksen <lkml2...@openmailbox.org>
Tested-by: Gustav Frederiksen <lkml2...@openmailbox.org>
Signed-off-by: Oleksij Rempel <li...@rempel-privat.de>
diff -Naur backports-4.2.6-1.org/drivers/net/wireless/ath/ath9k/ar5008_phy.c backports-4.2.6-1/drivers/net/wireless/ath/ath9k/ar5008_phy.c
--- backports-4.2.6-1.org/drivers/net/wireless/ath/ath9k/ar5008_phy.c 2015-11-15 22:19:39.000000000 +0100
+++ backports-4.2.6-1/drivers/net/wireless/ath/ath9k/ar5008_phy.c 2016-04-25 09:37:58.765112541 +0200
@@ -274,6 +274,9 @@
};
static const int inc[4] = { 0, 100, 0, 0 };
+ memset(&mask_m, 0, sizeof(int8_t) * 123);
+ memset(&mask_p, 0, sizeof(int8_t) * 123);
+
cur_bin = -6000;
upper = bin + 100;
lower = bin - 100;
@@ -424,14 +427,9 @@
int tmp, new;
int i;
- int8_t mask_m[123];
- int8_t mask_p[123];
int cur_bb_spur;
bool is2GHz = IS_CHAN_2GHZ(chan);
- memset(&mask_m, 0, sizeof(int8_t) * 123);
- memset(&mask_p, 0, sizeof(int8_t) * 123);
-
for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
if (AR_NO_SPUR == cur_bb_spur)
diff -Naur backports-4.2.6-1.org/drivers/net/wireless/ath/ath9k/ar9002_phy.c backports-4.2.6-1/drivers/net/wireless/ath/ath9k/ar9002_phy.c
--- backports-4.2.6-1.org/drivers/net/wireless/ath/ath9k/ar9002_phy.c 2015-11-15 22:19:39.000000000 +0100
+++ backports-4.2.6-1/drivers/net/wireless/ath/ath9k/ar9002_phy.c 2016-04-25 09:38:57.729109148 +0200
@@ -178,14 +178,9 @@
int i;
struct chan_centers centers;
- int8_t mask_m[123];
- int8_t mask_p[123];
int cur_bb_spur;
bool is2GHz = IS_CHAN_2GHZ(chan);
- memset(&mask_m, 0, sizeof(int8_t) * 123);
- memset(&mask_p, 0, sizeof(int8_t) * 123);
-
ath9k_hw_get_channel_centers(ah, chan, &centers);
freq = centers.synth_center;