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wifi: mac80211: Use the bitmap API to allocate bitmaps
author
Christophe JAILLET
<christophe.jaillet@wanadoo.fr>
Mon, 4 Jul 2022 19:16:09 +0000
(21:16 +0200)
committer
Johannes Berg
<johannes.berg@intel.com>
Mon, 11 Jul 2022 08:21:25 +0000
(10:21 +0200)
Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.
It is less verbose and it improves the semantic.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link:
https://lore.kernel.org/r/dfb438a6a199ee4c95081fa01bd758fd30e50931.1656962156.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
net/mac80211/mesh_plink.c
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diff --git
a/net/mac80211/mesh_plink.c
b/net/mac80211/mesh_plink.c
index 55bed9ce98fe4bc0f51ec2048f9e2de81845e149..d67011745048fdd812237da46f5957e56509bf85 100644
(file)
--- a/
net/mac80211/mesh_plink.c
+++ b/
net/mac80211/mesh_plink.c
@@
-477,8
+477,7
@@
static int mesh_allocate_aid(struct ieee80211_sub_if_data *sdata)
unsigned long *aid_map;
int aid;
- aid_map = kcalloc(BITS_TO_LONGS(IEEE80211_MAX_AID + 1),
- sizeof(*aid_map), GFP_KERNEL);
+ aid_map = bitmap_zalloc(IEEE80211_MAX_AID + 1, GFP_KERNEL);
if (!aid_map)
return -ENOMEM;
@@
-491,7
+490,7
@@
static int mesh_allocate_aid(struct ieee80211_sub_if_data *sdata)
rcu_read_unlock();
aid = find_first_zero_bit(aid_map, IEEE80211_MAX_AID + 1);
-
k
free(aid_map);
+
bitmap_
free(aid_map);
if (aid > IEEE80211_MAX_AID)
return -ENOBUFS;