ath5k: Reset key cache on interface up, thus fixing resume

After a s2ram / resume cycle, resetting the key cache does not work
unless it is deferred until after the hardware has been reinitialised by
a call to ath5k_hw_reset(). This fixes a regression introduced by
"ath5k: fix suspend-related oops on rmmod".

Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 0f1d6bdd51a268f4b28ec1e79bc2c93e8fb84810..cfd4d052d666ea8cbda45b37c541cb2592dad3a0 100644 (file)
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -661,8 +661,7 @@ ath5k_pci_resume(struct pci_dev *pdev)
 {
        struct ieee80211_hw *hw = pci_get_drvdata(pdev);
        struct ath5k_softc *sc = hw->priv;
-       struct ath5k_hw *ah = sc->ah;
-       int i, err;
+       int err;
 
        pci_restore_state(pdev);
 
@@ -688,16 +687,6 @@ ath5k_pci_resume(struct pci_dev *pdev)
                goto err_irq;
        ath5k_led_enable(sc);
 
-       /*
-        * Reset the key cache since some parts do not
-        * reset the contents on initial power up or resume.
-        *
-        * FIXME: This may need to be revisited when mac80211 becomes
-        *        aware of suspend/resume.
-        */
-       for (i = 0; i < AR5K_KEYTABLE_SIZE; i++)
-               ath5k_hw_reset_key(ah, i);
-
        return 0;
 err_irq:
        free_irq(pdev->irq, sc);
@@ -718,7 +707,6 @@ ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw)
        struct ath5k_softc *sc = hw->priv;
        struct ath5k_hw *ah = sc->ah;
        u8 mac[ETH_ALEN];
-       unsigned int i;
        int ret;
 
        ATH5K_DBG(sc, ATH5K_DEBUG_ANY, "devid 0x%x\n", pdev->device);
@@ -736,13 +724,6 @@ ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw)
        if (ret > 0)
                __set_bit(ATH_STAT_MRRETRY, sc->status);
 
-       /*
-        * Reset the key cache since some parts do not
-        * reset the contents on initial power up.
-        */
-       for (i = 0; i < AR5K_KEYTABLE_SIZE; i++)
-               ath5k_hw_reset_key(ah, i);
-
        /*
         * Collect the channel list.  The 802.11 layer
         * is resposible for filtering this list based
@@ -2202,7 +2183,8 @@ ath5k_beacon_config(struct ath5k_softc *sc)
 static int
 ath5k_init(struct ath5k_softc *sc, bool is_resume)
 {
-       int ret;
+       struct ath5k_hw *ah = sc->ah;
+       int ret, i;
 
        mutex_lock(&sc->lock);
 
@@ -2235,10 +2217,17 @@ ath5k_init(struct ath5k_softc *sc, bool is_resume)
        if (ret)
                goto done;
 
+       /*
+        * Reset the key cache since some parts do not reset the
+        * contents on initial power up or resume from suspend.
+        */
+       for (i = 0; i < AR5K_KEYTABLE_SIZE; i++)
+               ath5k_hw_reset_key(ah, i);
+
        __set_bit(ATH_STAT_STARTED, sc->status);
 
        /* Set ack to be sent at low bit-rates */
-       ath5k_hw_set_ack_bitrate_high(sc->ah, false);
+       ath5k_hw_set_ack_bitrate_high(ah, false);
 
        mod_timer(&sc->calib_tim, round_jiffies(jiffies +
                        msecs_to_jiffies(ath5k_calinterval * 1000)));