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authorChun-Yeow Yeoh <yeohchunyeow@gmail.com>2012-03-19 21:38:46 +0800
committerJohn W. Linville <linville@tuxdriver.com>2012-04-09 16:12:30 -0400
commit292c41acddfdbe0fb42d4c4ad9b896168fd16e91 (patch)
treeb7fa07a43ca2362ee491dd2d72bf13be58e93e32
parent70b12f2612a6b352d16342b5952cf9f9de6c1d56 (diff)
downloadlinux-292c41acddfdbe0fb42d4c4ad9b896168fd16e91.tar.bz2
mac80211: fix the sparse warnings on endian handling in RANN propagation
The HWMP sequence number of received RANN element is compared to decide whether to be propagated. The sequence number is required to covert from 32bit little endian data into CPUs endianness for comparison. The same applies to the RANN metric. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--include/linux/ieee80211.h6
-rw-r--r--net/mac80211/mesh_hwmp.c4
2 files changed, 5 insertions, 5 deletions
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index a8c1c46431ab..09301b0768d0 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -640,9 +640,9 @@ struct ieee80211_rann_ie {
u8 rann_hopcount;
u8 rann_ttl;
u8 rann_addr[6];
- u32 rann_seq;
- u32 rann_interval;
- u32 rann_metric;
+ __le32 rann_seq;
+ __le32 rann_interval;
+ __le32 rann_metric;
} __attribute__ ((packed));
enum ieee80211_rann_flags {
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 1c6f3d02aebf..f80a9e3da359 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -748,10 +748,10 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata,
flags = rann->rann_flags;
root_is_gate = !!(flags & RANN_FLAG_IS_GATE);
orig_addr = rann->rann_addr;
- orig_sn = rann->rann_seq;
+ orig_sn = le32_to_cpu(rann->rann_seq);
hopcount = rann->rann_hopcount;
hopcount++;
- metric = rann->rann_metric;
+ metric = le32_to_cpu(rann->rann_metric);
/* Ignore our own RANNs */
if (compare_ether_addr(orig_addr, sdata->vif.addr) == 0)