Merge branch 'percpu-for-linus' into percpu-for-next

Conflicts:
	arch/sparc/kernel/smp_64.c
	arch/x86/kernel/cpu/perf_counter.c
	arch/x86/kernel/setup_percpu.c
	drivers/cpufreq/cpufreq_ondemand.c
	mm/percpu.c

Conflicts in core and arch percpu codes are mostly from commit
ed78e1e078dd44249f88b1dd8c76dafb39567161 which substituted many
num_possible_cpus() with nr_cpu_ids.  As for-next branch has moved all
the first chunk allocators into mm/percpu.c, the changes are moved
from arch code to mm/percpu.c.

Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 8 insertions, 3 deletions

diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 3c72557df45a..479597e88583 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -175,6 +175,8 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata)
         int err = 0;
         u32 hash_idx;
 
+        might_sleep();
+
         if (memcmp(dst, sdata->dev->dev_addr, ETH_ALEN) == 0)
                 /* never add ourselves as neighbours */
                 return -ENOTSUPP;
@@ -265,6 +267,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata)
         int err = 0;
         u32 hash_idx;
 
+        might_sleep();
 
         if (memcmp(dst, sdata->dev->dev_addr, ETH_ALEN) == 0)
                 /* never add ourselves as neighbours */
@@ -491,8 +494,10 @@ void mesh_path_tx_pending(struct mesh_path *mpath)
  * @skb: frame to discard
  * @sdata: network subif the frame was to be sent through
  *
- * If the frame was beign forwarded from another MP, a PERR frame will be sent
- * to the precursor.
+ * If the frame was being forwarded from another MP, a PERR frame will be sent
+ * to the precursor.  The precursor's address (i.e. the previous hop) was saved
+ * in addr1 of the frame-to-be-forwarded, and would only be overwritten once
+ * the destination is successfully resolved.
  *
  * Locking: the function must me called within a rcu_read_lock region
  */
@@ -507,7 +512,7 @@ void mesh_path_discard_frame(struct sk_buff *skb,
                 u8 *ra, *da;
 
                 da = hdr->addr3;
-                ra = hdr->addr2;
+                ra = hdr->addr1;
                 mpath = mesh_path_lookup(da, sdata);
                 if (mpath)
                         dsn = ++mpath->dsn;