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mac80211: fix the sparse warnings on endian handling in RANN propagation

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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>
This commit is contained in:
Chun-Yeow Yeoh 2012-03-19 21:38:46 +08:00 committed by John W. Linville
parent 70b12f2612
commit 292c41acdd
2 changed files with 5 additions and 5 deletions
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6
include/linux/ieee80211.h
View File

@ -640,9 +640,9 @@ struct ieee80211_rann_ie {
u8 rann_hopcount; u8 rann_hopcount;
u8 rann_ttl; u8 rann_ttl;
u8 rann_addr[6]; u8 rann_addr[6];
u32 rann_seq; __le32 rann_seq;
u32 rann_interval; __le32 rann_interval;
u32 rann_metric; __le32 rann_metric;
} __attribute__ ((packed)); } __attribute__ ((packed));
enum ieee80211_rann_flags { enum ieee80211_rann_flags {

4
net/mac80211/mesh_hwmp.c
View File

@ -748,10 +748,10 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata,
flags = rann->rann_flags; flags = rann->rann_flags;
root_is_gate = !!(flags & RANN_FLAG_IS_GATE); root_is_gate = !!(flags & RANN_FLAG_IS_GATE);
orig_addr = rann->rann_addr; orig_addr = rann->rann_addr;
orig_sn = rann->rann_seq; orig_sn = le32_to_cpu(rann->rann_seq);
hopcount = rann->rann_hopcount; hopcount = rann->rann_hopcount;
hopcount++; hopcount++;
metric = rann->rann_metric; metric = le32_to_cpu(rann->rann_metric);
/* Ignore our own RANNs */ /* Ignore our own RANNs */
if (compare_ether_addr(orig_addr, sdata->vif.addr) == 0) if (compare_ether_addr(orig_addr, sdata->vif.addr) == 0)