From d584747be838775cebbf5937c20b24da6899e3e8 Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Mon, 20 Dec 2010 14:39:51 +0530 Subject: [PATCH] ath9k: Fix warnings on card removal The recently added warning message on power change failure is not needed on device removal. ath: Failed to wakeup in 500us ------------[ cut here ]------------ WARNING: at drivers/net/wireless/ath/ath9k/hw.c:1618 ath9k_hw_setpower+0x61f/0x630 [ath9k_hw]() Hardware name: 64756D6 Pid: 540, comm: kworker/u:3 Not tainted 2.6.37-rc6-wl #37 Call Trace: [] warn_slowpath_common+0x7a/0xb0 [] ? ath9k_iowrite32+0x0/0x90 [ath9k] [] warn_slowpath_null+0x15/0x20 [] ath9k_hw_setpower+0x61f/0x630 [ath9k_hw] [] ath9k_ps_wakeup+0x85/0xd0 [ath9k] [] ath9k_configure_filter+0x25/0x80 [ath9k] [] ieee80211_configure_filter+0x133/0x190 [mac80211] [] ieee80211_do_stop+0x132/0x540 [mac80211] [] ? _raw_spin_unlock_bh+0x1f/0x30 [] ? dev_deactivate+0x1c3/0x1e0 [] ieee80211_stop+0x15/0x20 [mac80211] [] __dev_close+0x56/0x90 Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 1 + drivers/net/wireless/ath/ath9k/init.c | 2 ++ drivers/net/wireless/ath/ath9k/pci.c | 2 ++ drivers/net/wireless/ath/ath9k/recv.c | 3 ++- 4 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 2c31f51..d9bda27 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -667,6 +667,7 @@ extern struct ieee80211_ops ath9k_ops; extern int modparam_nohwcrypt; extern int led_blink; extern int ath9k_pm_qos_value; +extern bool is_ath9k_unloaded; irqreturn_t ath_isr(int irq, void *dev); int ath9k_init_device(u16 devid, struct ath_softc *sc, u16 subsysid, diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index b0e5e716..9efc77d 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -45,6 +45,7 @@ int ath9k_pm_qos_value = ATH9K_PM_QOS_DEFAULT_VALUE; module_param_named(pmqos, ath9k_pm_qos_value, int, S_IRUSR | S_IRGRP | S_IROTH); MODULE_PARM_DESC(pmqos, "User specified PM-QOS value"); +bool is_ath9k_unloaded; /* We use the hw_value as an index into our private channel structure */ #define CHAN2G(_freq, _idx) { \ @@ -899,6 +900,7 @@ module_init(ath9k_init); static void __exit ath9k_exit(void) { + is_ath9k_unloaded = true; ath_ahb_exit(); ath_pci_exit(); ath_rate_control_unregister(); diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c index 7ca8499..3eb938d 100644 --- a/drivers/net/wireless/ath/ath9k/pci.c +++ b/drivers/net/wireless/ath/ath9k/pci.c @@ -264,6 +264,8 @@ static void ath_pci_remove(struct pci_dev *pdev) struct ath_softc *sc = aphy->sc; void __iomem *mem = sc->mem; + if (!is_ath9k_unloaded) + sc->sc_ah->ah_flags |= AH_UNPLUGGED; ath9k_deinit_device(sc); free_irq(sc->irq, sc); ieee80211_free_hw(sc->hw); diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 00ebed3..b2497b8 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -528,7 +528,8 @@ bool ath_stoprecv(struct ath_softc *sc) sc->rx.rxlink = NULL; spin_unlock_bh(&sc->rx.rxbuflock); - if (unlikely(!stopped)) { + if (!(ah->ah_flags & AH_UNPLUGGED) && + unlikely(!stopped)) { ath_err(ath9k_hw_common(sc->sc_ah), "Could not stop RX, we could be " "confusing the DMA engine when we start RX up\n"); -- 2.7.4