* Shaddy Baddah | 2008-10-25 19:54:19 [+1100]:
> [ 282.300681] Kernel unaligned access at TPC[10129b68]
> zd_mac_rx+0x144/0x32c [zd1211rw]
>
> periodically is reported even after the ifconfig command completes
> (seemingly successfully).
>
> Thanks in advance for your assistance,
Could you try this patch:
>From a46436536ab13926ff3f592cfa3c333e06a99a0a Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <sebastian@xxxxxxxxxxxxx>
Date: Sat, 25 Oct 2008 13:15:14 +0200
Subject: [PATCH] wireless/zd1211rw: use get_unaligned_le16 helper
Signed-off-by: Sebastian Andrzej Siewior <sebastian@xxxxxxxxxxxxx>
---
drivers/net/wireless/zd1211rw/zd_mac.c | 5 +++--
drivers/net/wireless/zd1211rw/zd_usb.c | 2 +-
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index 4d7b98b..bf4b4a4 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -25,6 +25,7 @@
#include <linux/usb.h>
#include <linux/jiffies.h>
#include <net/ieee80211_radiotap.h>
+#include <asm/unaligned.h>
#include "zd_def.h"
#include "zd_chip.h"
@@ -662,7 +663,7 @@ int zd_mac_rx(struct ieee80211_hw *hw, const u8 *buffer, unsigned int length)
&& !mac->pass_ctrl)
return 0;
- fc = *(__le16 *)buffer;
+ fc = get_unaligned_le32(buffer);
need_padding = ieee80211_is_data_qos(fc) ^ ieee80211_has_a4(fc);
skb = dev_alloc_skb(length + (need_padding ? 2 : 0));
@@ -758,7 +759,7 @@ void zd_process_intr(struct work_struct *work)
u16 int_status;
struct zd_mac *mac = container_of(work, struct zd_mac, process_intr);
- int_status = le16_to_cpu(*(__le16 *)(mac->intr_buffer+4));
+ int_status = get_unaligned_le16(mac->intr_buffer+4);
if (int_status & INT_CFG_NEXT_BCN) {
if (net_ratelimit())
dev_dbg_f(zd_mac_dev(mac), "INT_CFG_NEXT_BCN\n");
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index a60ae86..0b27778 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -355,7 +355,7 @@ static inline void handle_regs_int(struct urb *urb)
ZD_ASSERT(in_interrupt());
spin_lock(&intr->lock);
- int_num = le16_to_cpu(*(__le16 *)(urb->transfer_buffer+2));
+ int_num = get_unaligned_le16(urb->transfer_buffer+2);
if (int_num == CR_INTERRUPT) {
struct zd_mac *mac = zd_hw_mac(zd_usb_to_hw(urb->context));
memcpy(&mac->intr_buffer, urb->transfer_buffer,
--
1.6.0.2
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