lkml.org 
[lkml]   [2017]   [Sep]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Date
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@gmail.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@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.16: keep using write_nic_{word,dword}()]
Signed-off-by: Ben Hutchings <ben@decadent.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);
\
 
 \ /
  Last update: 2017-09-10 01:27    [W:1.274 / U:1.356 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site