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authorPeter Maydell <peter.maydell@linaro.org>2016-07-07 17:20:57 +0100
committerPeter Maydell <peter.maydell@linaro.org>2016-07-12 15:08:53 +0100
commit43120576cb6a9db070fd300da69fe61f5e5cc281 (patch)
treec29ccb78cff18d7dc77ab52edff3d97aa23076ef /hw/bt/hci.c
parentb442642da145cb10293f577f3b43bda8beeb31cf (diff)
downloadfocaccia-qemu-43120576cb6a9db070fd300da69fe61f5e5cc281.tar.gz
focaccia-qemu-43120576cb6a9db070fd300da69fe61f5e5cc281.zip
hw/bt: Don't use cpu_to_*w() and *_to_cpup()
Don't use cpu_to_*w() and *_to_cpup() to do byte-swapped loads
and stores; instead use ld*_p() and st*_p() which correctly handle
misaligned accesses.

Bring the HNDL() macro into line with how we deal with
PARAMHANDLE(), by using cpu_to_le16() rather than an ifdef
HOST_WORDS_BIGENDIAN.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1467908460-27048-3-git-send-email-peter.maydell@linaro.org
Diffstat (limited to 'hw/bt/hci.c')
-rw-r--r--hw/bt/hci.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/hw/bt/hci.c b/hw/bt/hci.c
index 7d52205093..351123fab7 100644
--- a/hw/bt/hci.c
+++ b/hw/bt/hci.c
@@ -426,11 +426,7 @@ static void bt_submit_raw_acl(struct bt_piconet_s *net, int length, uint8_t *dat
  * be continuously allocated.  We do it though, to preserve similar
  * behaviour between hosts.  Some things, like the BD_ADDR cannot be
  * preserved though (for example if a real hci is used).  */
-#ifdef HOST_WORDS_BIGENDIAN
-# define HNDL(raw)	bswap16(raw)
-#else
-# define HNDL(raw)	(raw)
-#endif
+#define HNDL(raw) cpu_to_le16(raw)
 
 static const uint8_t bt_event_reserved_mask[8] = {
     0xff, 0x9f, 0xfb, 0xff, 0x07, 0x18, 0x00, 0x00,
@@ -1504,8 +1500,8 @@ static void bt_submit_hci(struct HCIInfo *info,
         return;
 
 #define PARAM(cmd, param)	(((cmd##_cp *) data)->param)
-#define PARAM16(cmd, param)	le16_to_cpup(&PARAM(cmd, param))
-#define PARAMHANDLE(cmd)	HNDL(PARAM(cmd, handle))
+#define PARAM16(cmd, param) lduw_le_p(&PARAM(cmd, param))
+#define PARAMHANDLE(cmd) PARAM16(cmd, handle)
 #define LENGTH_CHECK(cmd)	if (length < sizeof(cmd##_cp)) goto short_hci
     /* Note: the supported commands bitmask in bt_hci_read_local_commands_rp
      * needs to be updated every time a command is implemented here!  */