ath5k-disable-fast-channel-switching-by-default.patch
(rhbz#709122) (korgbz#34992) [a99168ee in wireless-next]
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From c564db51fe187362c4da0a9de2905c020e981c75 Mon Sep 17 00:00:00 2001
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From: Nick Kossifidis <mickflemm@gmail.com>
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Date: Thu, 2 Jun 2011 03:09:48 +0300
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Subject: ath5k: Disable fast channel switching by default
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Disable fast channel change by default on AR2413/AR5413 due to
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some bug reports (it still works for me but it's better to be safe).
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Add a module parameter "fastchanswitch" in case anyone wants to enable
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it and play with it.
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Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
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Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
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Signed-off-by: John W. Linville <linville@tuxdriver.com>
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---
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drivers/net/wireless/ath/ath5k/base.c | 9 ++++++++-
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drivers/net/wireless/ath/ath5k/reset.c | 5 ++++-
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2 files changed, 12 insertions(+), 2 deletions(-)
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diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
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index 09ae4ef..0fb6333 100644
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--- a/drivers/net/wireless/ath/ath5k/base.c
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+++ b/drivers/net/wireless/ath/ath5k/base.c
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@@ -69,6 +69,11 @@ static int modparam_all_channels;
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module_param_named(all_channels, modparam_all_channels, bool, S_IRUGO);
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MODULE_PARM_DESC(all_channels, "Expose all channels the device can use.");
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+static int modparam_fastchanswitch;
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+module_param_named(fastchanswitch, modparam_fastchanswitch, bool, S_IRUGO);
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+MODULE_PARM_DESC(fastchanswitch, "Enable fast channel switching for AR2413/AR5413 radios.");
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+
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+
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/* Module info */
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MODULE_AUTHOR("Jiri Slaby");
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MODULE_AUTHOR("Nick Kossifidis");
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@@ -2664,6 +2669,7 @@ ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan,
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struct ath5k_hw *ah = sc->ah;
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struct ath_common *common = ath5k_hw_common(ah);
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int ret, ani_mode;
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+ bool fast;
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ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "resetting\n");
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@@ -2685,7 +2691,8 @@ ath5k_reset(struct ath5k_softc *sc, struct ieee80211_channel *chan,
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sc->curchan = chan;
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sc->curband = &sc->sbands[chan->band];
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}
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- ret = ath5k_hw_reset(ah, sc->opmode, sc->curchan, chan != NULL,
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+ fast = ((chan != NULL) && modparam_fastchanswitch) ? 1 : 0;
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+ ret = ath5k_hw_reset(ah, sc->opmode, sc->curchan, fast,
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skip_pcu);
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if (ret) {
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ATH5K_ERR(sc, "can't reset hardware (%d)\n", ret);
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diff --git a/drivers/net/wireless/ath/ath5k/reset.c b/drivers/net/wireless/ath/ath5k/reset.c
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index 8420689..6f53d2b 100644
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--- a/drivers/net/wireless/ath/ath5k/reset.c
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+++ b/drivers/net/wireless/ath/ath5k/reset.c
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@@ -1119,8 +1119,11 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
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/* Non fatal, can happen eg.
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* on mode change */
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ret = 0;
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- } else
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+ } else {
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+ ATH5K_DBG(ah->ah_sc, ATH5K_DEBUG_RESET,
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+ "fast chan change successful\n");
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return 0;
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+ }
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}
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/*
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--
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1.7.5.2
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@ -749,6 +749,8 @@ Patch12407: scsi_dh_hp_sw-fix-deadlock-in-start_stop_endio.patch
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Patch12415: hid-multitouch-add-support-for-elo-touchsystems.patch
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Patch12416: bluetooth-device-ids-for-ath3k-on-pegatron-lucid-tablets.patch
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Patch12418: ath5k-disable-fast-channel-switching-by-default.patch
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%endif
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BuildRoot: %{_tmppath}/kernel-%{KVERREL}-root
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@ -1390,6 +1392,9 @@ ApplyPatch scsi_dh_hp_sw-fix-deadlock-in-start_stop_endio.patch
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ApplyPatch hid-multitouch-add-support-for-elo-touchsystems.patch
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ApplyPatch bluetooth-device-ids-for-ath3k-on-pegatron-lucid-tablets.patch
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# rhbz#709122
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ApplyPatch ath5k-disable-fast-channel-switching-by-default.patch
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# END OF PATCH APPLICATIONS
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%endif
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@ -1998,6 +2003,10 @@ fi
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# and build.
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%changelog
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* Thu Jun 09 2011 Kyle McMartin <kmcmartin@redhat.com>
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- ath5k-disable-fast-channel-switching-by-default.patch (rhbz#709122)
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(korgbz#34992) [a99168ee in wireless-next]
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* Tue Jun 07 2011 Dave Jones <davej@redhat.com>
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- [SCSI] Fix oops caused by queue refcounting failure.
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