diff options
| author |   Helmut Schaa <helmut.schaa@googlemail.com> | 2010-12-27 15:06:57 +0100 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2011-01-04 14:35:14 -0500 |
| commit | bfe6a15d60671993eb3d4ac396b1f442ae08581c (patch) | |
| tree | fc7dea9103f7e8644ec310e33d92b486a4ee212c /drivers/net/wireless | |
| parent | rt2x00: Remove superfluous assignment of mpdu_density (diff) | |
| download | linux-dev-bfe6a15d60671993eb3d4ac396b1f442ae08581c.tar.xz linux-dev-bfe6a15d60671993eb3d4ac396b1f442ae08581c.zip | |
rt2x00: Simplify intf->delayed_flags locking
Instead of protecting delayed_flags with a spinlock use atomic bitops to
make the code more readable.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00.h | 7 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00dev.c | 15 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00mac.c | 4 |
3 files changed, 7 insertions, 19 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 755b723400f5..b3f77d4f37ff 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -347,6 +347,10 @@ struct link { struct delayed_work watchdog_work; }; +enum rt2x00_delayed_flags { + DELAYED_UPDATE_BEACON, +}; + /* * Interface structure * Per interface configuration details, this structure @@ -374,8 +378,7 @@ struct rt2x00_intf { /* * Actions that needed rescheduling. */ - unsigned int delayed_flags; -#define DELAYED_UPDATE_BEACON 0x00000001 + unsigned long delayed_flags; /* * Software sequence counter, this is only required diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 97a8911571ce..9597a03242cc 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -110,19 +110,6 @@ static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac, { struct rt2x00_dev *rt2x00dev = data; struct rt2x00_intf *intf = vif_to_intf(vif); - int delayed_flags; - - /* - * Copy all data we need during this action under the protection - * of a spinlock. Otherwise race conditions might occur which results - * into an invalid configuration. - */ - spin_lock(&intf->lock); - - delayed_flags = intf->delayed_flags; - intf->delayed_flags = 0; - - spin_unlock(&intf->lock); /* * It is possible the radio was disabled while the work had been @@ -133,7 +120,7 @@ static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac, if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) return; - if (delayed_flags & DELAYED_UPDATE_BEACON) + if (test_and_clear_bit(DELAYED_UPDATE_BEACON, &intf->delayed_flags)) rt2x00queue_update_beacon(rt2x00dev, vif, true); } diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index a2266c7d86c2..297d972c229b 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -444,9 +444,7 @@ static void rt2x00mac_set_tim_iter(void *data, u8 *mac, vif->type != NL80211_IFTYPE_WDS) return; - spin_lock(&intf->lock); - intf->delayed_flags |= DELAYED_UPDATE_BEACON; - spin_unlock(&intf->lock); + set_bit(DELAYED_UPDATE_BEACON, &intf->delayed_flags); } int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, |