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wlcore: avoid using NET_IP_ALIGN for RX alignment

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NET_IP_ALIGN can be overriden on different architectures
and therefore cannot be used in the RX path to account
for the 2 bytes added for alignment (either by the FW
in the case of 18xx or by the host for 12xx).
Instead use an internal define.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Eyal Shapira 2012-06-11 17:59:55 +03:00 committed by Luciano Coelho
parent 3e3947fffc
commit 04414e2aa5
2 changed files with 8 additions and 2 deletions
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4
drivers/net/wireless/ti/wlcore/rx.c
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@ -127,7 +127,7 @@ static int wl1271_rx_handle_data(struct wl1271 *wl, u8 *data, u32 length,
}
if (rx_align == WLCORE_RX_BUF_UNALIGNED)
reserved = NET_IP_ALIGN;
reserved = RX_BUF_ALIGN;
/* the data read starts with the descriptor */
desc = (struct wl1271_rx_descriptor *) data;
@ -175,7 +175,7 @@ static int wl1271_rx_handle_data(struct wl1271 *wl, u8 *data, u32 length,
*/
memcpy(buf, data + sizeof(*desc), pkt_data_len);
if (rx_align == WLCORE_RX_BUF_PADDED)
skb_pull(skb, NET_IP_ALIGN);
skb_pull(skb, RX_BUF_ALIGN);
*hlid = desc->hlid;

6
drivers/net/wireless/ti/wlcore/rx.h
View file

@ -103,6 +103,12 @@
/* If set, the buffer was padded by the FW to be 4 bytes aligned */
#define RX_BUF_PADDED_PAYLOAD BIT(30)
/*
* Account for the padding inserted by the FW in case of RX_ALIGNMENT
* or for fixing alignment in case the packet wasn't aligned.
*/
#define RX_BUF_ALIGN 2
/* Describes the alignment state of a Rx buffer */
enum wl_rx_buf_align {
WLCORE_RX_BUF_ALIGNED,