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ath5k-disable-fast-channel-switching-by-default.patch 

(rhbz#709122) (korgbz#34992) [a99168ee in wireless-next]
This commit is contained in:
Kyle McMartin 2011-06-09 10:37:14 -04:00
parent 490bb4b273
commit 33b31a1c76
2 changed files with 82 additions and 0 deletions
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74
ath5k-disable-fast-channel-switching-by-default.patch Normal file
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@ -0,0 +1,74 @@
From 8fa0f2e505a58f6694a94f68d90e509530e68679 Mon Sep 17 00:00:00 2001
From: Nick Kossifidis <mickflemm@gmail.com>
Date: Thu, 2 Jun 2011 03:09:48 +0300
Subject: ath5k: Disable fast channel switching by default
Disable fast channel change by default on AR2413/AR5413 due to
some bug reports (it still works for me but it's better to be safe).
Add a module parameter "fastchanswitch" in case anyone wants to enable
it and play with it.
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/ath/ath5k/base.c | 11 ++++++++++-
drivers/net/wireless/ath/ath5k/reset.c | 5 ++++-
2 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 2204762..b6c5d37 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -72,6 +72,11 @@ static int modparam_all_channels;
module_param_named(all_channels, modparam_all_channels, bool, S_IRUGO);
MODULE_PARM_DESC(all_channels, "Expose all channels the device can use.");
+static int modparam_fastchanswitch;
+module_param_named(fastchanswitch, modparam_fastchanswitch, bool, S_IRUGO);
+MODULE_PARM_DESC(fastchanswitch, "Enable fast channel switching for AR2413/AR5413 radios.");
+
+
/* Module info */
MODULE_AUTHOR("Jiri Slaby");
MODULE_AUTHOR("Nick Kossifidis");
@@ -2686,6 +2691,7 @@ ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan,
struct ath5k_hw *ah = sc->ah;
struct ath_common *common = ath5k_hw_common(ah);
int ret, ani_mode;
+ bool fast;
ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "resetting\n");
@@ -2705,7 +2711,10 @@ ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan,
ath5k_drain_tx_buffs(sc);
if (chan)
sc->curchan = chan;
- ret = ath5k_hw_reset(ah, sc->opmode, sc->curchan, chan != NULL,
+
+ fast = ((chan != NULL) && modparam_fastchanswitch) ? 1 : 0;
+
+ ret = ath5k_hw_reset(ah, sc->opmode, sc->curchan, fast,
skip_pcu);
if (ret) {
ATH5K_ERR(sc, "can't reset hardware (%d)\n", ret);
diff --git a/drivers/net/wireless/ath/ath5k/reset.c b/drivers/net/wireless/ath/ath5k/reset.c
index 3510de2..126a4ea 100644
--- a/drivers/net/wireless/ath/ath5k/reset.c
+++ b/drivers/net/wireless/ath/ath5k/reset.c
@@ -1124,8 +1124,11 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
/* Non fatal, can happen eg.
* on mode change */
ret = 0;
- } else
+ } else {
+ ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_RESET,
+ "fast chan change successful\n");
return 0;
+ }
}
/*
--
1.7.5.2

8
kernel.spec
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@ -718,6 +718,7 @@ Patch12402: mm-slub-do-not-take-expensive-steps-for-slubs-speculative-high-order
Patch12403: mm-vmscan-if-kswapd-has-been-running-too-long-allow-it-to-sleep.patch
Patch12404: revert-ftrace-remove-unnecessary-disabling-of-irqs.patch
Patch12405: ath5k-disable-fast-channel-switching-by-default.patch
%endif
@ -1328,6 +1329,9 @@ ApplyPatch mm-vmscan-if-kswapd-has-been-running-too-long-allow-it-to-sleep.patch
# rhbz#710921
ApplyPatch revert-ftrace-remove-unnecessary-disabling-of-irqs.patch
# rhbz#709122
ApplyPatch ath5k-disable-fast-channel-switching-by-default.patch
# END OF PATCH APPLICATIONS
%endif
@ -1936,6 +1940,10 @@ fi
# and build.
%changelog
* Thu Jun 09 2011 Kyle McMartin <kmcmartin@redhat.com>
- ath5k-disable-fast-channel-switching-by-default.patch (rhbz#709122)
(korgbz#34992) [a99168ee in wireless-next]
* Thu Jun 09 2011 Kyle McMartin <kmcmartin@redhat.com> 3.0-0.rc2.git0.2
- rhbz#710921: revert-ftrace-remove-unnecessary-disabling-of-irqs.patch