rndis_wlan: fix broken data copy
Replace broken code that attempted to copy 6 byte array to 64-bit
integer. Due to missing cast to 64-bit integer, left shift operation
were 32-bit and lead to bytes been copied over each other. New code
uses simple memcpy, for greater readability and efficiency.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index d9460ae..10b776c 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -260,7 +260,7 @@
__le32 KeyLength;
u8 Bssid[6];
u8 Padding[6];
- __le64 KeyRSC;
+ u8 KeyRSC[8];
u8 KeyMaterial[32];
} __attribute__((packed));
@@ -1508,7 +1508,7 @@
struct usbnet *usbdev = dev->priv;
struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
struct NDIS_802_11_KEY ndis_key;
- int i, keyidx, ret;
+ int keyidx, ret;
u8 *addr;
keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
@@ -1543,9 +1543,7 @@
ndis_key.KeyIndex = cpu_to_le32(keyidx);
if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
- for (i = 0; i < 6; i++)
- ndis_key.KeyRSC |=
- cpu_to_le64(ext->rx_seq[i] << (i * 8));
+ memcpy(ndis_key.KeyRSC, ext->rx_seq, 6);
ndis_key.KeyIndex |= cpu_to_le32(1 << 29);
}
