[PATCH 59/62] mac80211: convert to idr_alloc()
STALE4949d
From: Tejun Heo <tj@kernel.org>
Date: 2013-02-03 01:24:14
Also in:
lkml
Subsystem:
mac80211, the rest · Maintainers:
Johannes Berg, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2013-02-04 · Re: [PATCH 59/62] mac80211: convert to idr_alloc() · Tejun Heo <tj@kernel.org>
- 2013-02-04 · Re: [PATCH 59/62] mac80211: convert to idr_alloc() · Johannes Berg <johannes@sipsolutions.net>
Convert to the much saner new idr interface. Only compile tested. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: linux-wireless@vger.kernel.org --- This patch depends on an earlier idr changes and I think it would be best to route these together through -mm. Please holler if there's any objection. Thanks. net/mac80211/main.c | 2 -- net/mac80211/tx.c | 18 ++++-------------- 2 files changed, 4 insertions(+), 16 deletions(-)
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 1b087ff..7b5bbea 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c@@ -687,8 +687,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, spin_lock_init(&local->ack_status_lock); idr_init(&local->ack_status_frames); - /* preallocate at least one entry */ - idr_pre_get(&local->ack_status_frames, GFP_KERNEL); sta_info_init(local);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index e9eadc4..73eb6c1 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c@@ -1996,24 +1996,14 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, skb = skb_clone(skb, GFP_ATOMIC); if (skb) { unsigned long flags; - int id, r; + int id; spin_lock_irqsave(&local->ack_status_lock, flags); - r = idr_get_new_above(&local->ack_status_frames, - orig_skb, 1, &id); - if (r == -EAGAIN) { - idr_pre_get(&local->ack_status_frames, - GFP_ATOMIC); - r = idr_get_new_above(&local->ack_status_frames, - orig_skb, 1, &id); - } - if (WARN_ON(!id) || id > 0xffff) { - idr_remove(&local->ack_status_frames, id); - r = -ERANGE; - } + id = idr_alloc(&local->ack_status_frames, orig_skb, + 1, 0x10000, GFP_ATOMIC); spin_unlock_irqrestore(&local->ack_status_lock, flags); - if (!r) { + if (id >= 0) { info_id = id; info_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; } else if (skb_shared(skb)) {
--
1.8.1