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b43: fix regression in PIO case 

This patch fixes the regression, introduced by

commit 17030f48e3
From: Rafał Miłecki <zajec5@gmail.com>
Date: Thu, 11 Aug 2011 17:16:27 +0200
Subject: [PATCH] b43: support new RX header, noticed to be used in 598.314+ fw

in PIO case.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Guennadi Liakhovetski 2011-12-26 18:28:08 +01:00 committed by John W. Linville
parent b25bfda382
commit 09009512e5
1 changed files with 13 additions and 3 deletions
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16
drivers/net/wireless/b43/pio.c
View File

@ -617,9 +617,19 @@ static bool pio_rx_frame(struct b43_pio_rxqueue *q)
const char *err_msg = NULL;
struct b43_rxhdr_fw4 *rxhdr =
(struct b43_rxhdr_fw4 *)wl->pio_scratchspace;
size_t rxhdr_size = sizeof(*rxhdr);
BUILD_BUG_ON(sizeof(wl->pio_scratchspace) < sizeof(*rxhdr));
memset(rxhdr, 0, sizeof(*rxhdr));
switch (dev->fw.hdr_format) {
case B43_FW_HDR_410:
case B43_FW_HDR_351:
rxhdr_size -= sizeof(rxhdr->format_598) -
sizeof(rxhdr->format_351);
break;
case B43_FW_HDR_598:
break;
}
memset(rxhdr, 0, rxhdr_size);
/* Check if we have data and wait for it to get ready. */
if (q->rev >= 8) {
@ -657,11 +667,11 @@ data_ready:
/* Get the preamble (RX header) */
if (q->rev >= 8) {
b43_block_read(dev, rxhdr, sizeof(*rxhdr),
b43_block_read(dev, rxhdr, rxhdr_size,
q->mmio_base + B43_PIO8_RXDATA,
sizeof(u32));
} else {
b43_block_read(dev, rxhdr, sizeof(*rxhdr),
b43_block_read(dev, rxhdr, rxhdr_size,
q->mmio_base + B43_PIO_RXDATA,
sizeof(u16));
}