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authorAlexander Aring <alex.aring@gmail.com>2015-05-22 17:43:54 +0200
committerMarcel Holtmann <marcel@holtmann.org>2015-05-23 17:57:08 +0200
commitc947f7e1e31a708f5a4ea8c1a627bec578cd9223 (patch)
tree2b00d3be6c911ec0f8a133499994e4bb185ecb76 /net/mac802154/rx.c
parent344f8c119df742f2bf7098cf8fc326351f583249 (diff)
downloadlinux-stericsson-c947f7e1e31a708f5a4ea8c1a627bec578cd9223.tar.gz
mac802154: remove mib lock
This patch removes the mib lock. The new locking mechanism is to protect the mib values with the rtnl lock. Note that this isn't always necessary if we have an interface up the most mib values are readonly (e.g. address settings). With this behaviour we can remove locking in hotpath like frame parsing completely. It depends on context if we need to hold the rtnl lock or not, this makes the callbacks of ieee802154_mlme_ops unnecessary because these callbacks hols always the locks. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/mac802154/rx.c')
-rw-r--r--net/mac802154/rx.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/net/mac802154/rx.c b/net/mac802154/rx.c
index c0d67b2b4132..e0f10063cac3 100644
--- a/net/mac802154/rx.c
+++ b/net/mac802154/rx.c
@@ -47,8 +47,6 @@ ieee802154_subif_frame(struct ieee802154_sub_if_data *sdata,
pr_debug("getting packet via slave interface %s\n", sdata->dev->name);
- spin_lock_bh(&sdata->mib_lock);
-
span = wpan_dev->pan_id;
sshort = wpan_dev->short_addr;
@@ -83,13 +81,10 @@ ieee802154_subif_frame(struct ieee802154_sub_if_data *sdata,
skb->pkt_type = PACKET_OTHERHOST;
break;
default:
- spin_unlock_bh(&sdata->mib_lock);
pr_debug("invalid dest mode\n");
goto fail;
}
- spin_unlock_bh(&sdata->mib_lock);
-
skb->dev = sdata->dev;
rc = mac802154_llsec_decrypt(&sdata->sec, skb);