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authorGertjan van Wingerde <gwingerde@gmail.com>2011-05-18 20:25:42 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-06-01 15:10:59 -0400
commit798eefde3097f218849194f1abda1f179a169cc2 (patch)
tree2d8bd74d48921b0d35b1ea9e8e2ff32142a3452e /drivers/net/wireless
parent872834dfb38edc6f72cfc783a5ce78f2a9f36ec5 (diff)
rt2x00: Interface sequence lock doesn't have to disable interrupts.
This lock is only used in the TX path and thus in process context. Therefore we can use a much lighter spinlock variant. Signed-off-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/rt2x00queue.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index ab8c16f8bcaf..c7fc9def6bcf 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -206,7 +206,6 @@ static void rt2x00queue_create_tx_descriptor_seq(struct queue_entry *entry,
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data;
struct rt2x00_intf *intf = vif_to_intf(tx_info->control.vif);
- unsigned long irqflags;
if (!(tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ))
return;
@@ -227,14 +226,14 @@ static void rt2x00queue_create_tx_descriptor_seq(struct queue_entry *entry,
* sequence counting per-frame, since those will override the
* sequence counter given by mac80211.
*/
- spin_lock_irqsave(&intf->seqlock, irqflags);
+ spin_lock(&intf->seqlock);
if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags))
intf->seqno += 0x10;
hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
hdr->seq_ctrl |= cpu_to_le16(intf->seqno);
- spin_unlock_irqrestore(&intf->seqlock, irqflags);
+ spin_unlock(&intf->seqlock);
}