diff options
| author | Tejun Heo <tj@kernel.org> | 2013-02-28 05:04:59 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-28 07:10:20 +0400 |
| commit | 9475af6e44d2c17583243c253e2464467b52fa50 (patch) | |
| tree | 573f01d006774828e0b39102ee31525cc5b4dbcb | |
| parent | 19a101a02ec65400233459ee7cef7037dbe8f15b (diff) | |
| download | linux-9475af6e44d2c17583243c253e2464467b52fa50.tar.xz | |
mac80211: convert to idr_alloc()
Convert to the much saner new idr interface.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | net/mac80211/main.c | 2 | ||||
| -rw-r--r-- | 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 d0dd11153a6c..1a8591b77a13 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -647,8 +647,6 @@ 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 5b9602b62405..de8548bf0a7f 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -2017,24 +2017,14 @@ 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)) { |