[PATCH 3.16 019/233] staging: rtl8192e: fix 2 byte alignment of register BSSIDR.

[Ben Hutchings]

3.16.48-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Malcolm Priestley <tvboxspy@xxxxxxxxx>

commit 867510bde14e7b7fc6dd0f50b48f6753cfbd227a upstream.

BSSIDR has two byte alignment on PCI ioremap correct the write
by swapping to 16 bits first.

This fixes a problem that the device associates fail because
the filter is not set correctly.

Signed-off-by: Malcolm Priestley <tvboxspy@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
[bwh: Backported to 3.16: keep using write_nic_{word,dword}()]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
@@ -100,8 +100,9 @@ void rtl8192e_SetHwReg(struct net_device
 
 	switch (variable) {
 	case HW_VAR_BSSID:
-		write_nic_dword(dev, BSSIDR, ((u32 *)(val))[0]);
-		write_nic_word(dev, BSSIDR+2, ((u16 *)(val+2))[0]);
+		/* BSSIDR 2 byte alignment */
+		write_nic_word(dev, BSSIDR, *(u16 *)val);
+		write_nic_dword(dev, BSSIDR + 2, *(u32 *)(val + 2));
 		break;
 
 	case HW_VAR_MEDIA_STATUS:
@@ -965,8 +966,8 @@ static void rtl8192_net_update(struct ne
 	rtl8192_config_rate(dev, &rate_config);
 	priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
 	 priv->basic_rate = rate_config &= 0x15f;
-	write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]);
-	write_nic_word(dev, BSSIDR+4, ((u16 *)net->bssid)[2]);
+	write_nic_word(dev, BSSIDR, *(u16 *)net->bssid);
+	write_nic_dword(dev, BSSIDR + 2, *(u32 *)(net->bssid + 2));
 
 	if (priv->rtllib->iw_mode == IW_MODE_ADHOC) {
 		write_nic_word(dev, ATIMWND, 2);