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Date: Sat, 09 Sep 2017 22:47:14 +0100
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC: akpm@...ux-foundation.org,
"Malcolm Priestley" <tvboxspy@...il.com>,
"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
Subject: [PATCH 3.16 019/233] staging: rtl8192e: fix 2 byte alignment of
register BSSIDR.
3.16.48-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Malcolm Priestley <tvboxspy@...il.com>
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@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
[bwh: Backported to 3.16: keep using write_nic_{word,dword}()]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
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);
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