irda: Fix a misalign access issue. (v2)

Replace u16ho with put/get_unaligned functions

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 3 deletions

diff --git a/net/irda/discovery.c b/net/irda/discovery.c
index bfacef8b76f4..a6f99b5a1499 100644
--- a/net/irda/discovery.c
+++ b/net/irda/discovery.c
@@ -40,6 +40,8 @@
 
 #include <net/irda/discovery.h>
 
+#include <asm/unaligned.h>
+
 /*
  * Function irlmp_add_discovery (cachelog, discovery)
  *
@@ -87,7 +89,7 @@ void irlmp_add_discovery(hashbin_t *cachelog, discovery_t *new)
                          */
                         hashbin_remove_this(cachelog, (irda_queue_t *) node);
                         /* Check if hints bits are unchanged */
-                        if(u16ho(node->data.hints) == u16ho(new->data.hints))
+                        if (get_unaligned((__u16 *)node->data.hints) == get_unaligned((__u16 *)new->data.hints))
                                 /* Set time of first discovery for this node */
                                 new->firststamp = node->firststamp;
                         kfree(node);
@@ -281,9 +283,9 @@ struct irda_device_info *irlmp_copy_discoveries(hashbin_t *log, int *pn,
                 /* Mask out the ones we don't want :
                  * We want to match the discovery mask, and to get only
                  * the most recent one (unless we want old ones) */
-                if ((u16ho(discovery->data.hints) & mask) &&
+                if ((get_unaligned((__u16 *)discovery->data.hints) & mask) &&
                     ((old_entries) ||
-                     ((jiffies - discovery->firststamp) < j_timeout)) ) {
+                     ((jiffies - discovery->firststamp) < j_timeout))) {
                         /* Create buffer as needed.
                          * As this function get called a lot and most time
                          * we don't have anything to put in the log (we are