diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2008-12-01 18:19:36 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-12-05 09:35:46 -0500 |
| commit | c91276592695e13d1b52eab572551017cbf96ee7 (patch) | |
| tree | c5e0a6611c215ce38637c56c0ef0989fda04d120 | |
| parent | 0f70f398460adb2d8aabb00e7e65f58247f219a3 (diff) | |
p54: fix lm87 checksum endianness
This fixes the checksum calculation for lm87 firmwares
on big endian platforms, the device treats the data as
an array of 32-bit little endian values so the driver
needs to do that as well.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/p54/p54usb.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c index e9630b94925..2dd3cd41d0f 100644 --- a/drivers/net/wireless/p54/p54usb.c +++ b/drivers/net/wireless/p54/p54usb.c @@ -244,13 +244,13 @@ static void p54u_tx_3887(struct ieee80211_hw *dev, struct sk_buff *skb, usb_submit_urb(data_urb, GFP_ATOMIC); } -static __le32 p54u_lm87_chksum(const u32 *data, size_t length) +static __le32 p54u_lm87_chksum(const __le32 *data, size_t length) { u32 chk = 0; length >>= 2; while (length--) { - chk ^= *data++; + chk ^= le32_to_cpu(*data++); chk = (chk >> 5) ^ (chk << 3); } @@ -270,7 +270,7 @@ static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb, if (!data_urb) return; - checksum = p54u_lm87_chksum((u32 *)skb->data, skb->len); + checksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len); hdr = (struct lm87_tx_hdr *)skb_push(skb, sizeof(*hdr)); hdr->chksum = checksum; hdr->device_addr = addr; |