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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2011-12-26 18:28:08 +0100
committerJohn W. Linville <linville@tuxdriver.com>2012-01-03 14:40:45 -0500
commit09009512e5e7ab341b1554a256f81dd512c1f4bf (patch)
tree58d8b7a6ab90137138dc4d22ec4b4d85be708b2c
parentb25bfda38236f349cde0d1b28952f4eea2148d3f (diff)
downloadlinux-linaro-09009512e5e7ab341b1554a256f81dd512c1f4bf.tar.gz
b43: fix regression in PIO case
This patch fixes the regression, introduced by commit 17030f48e31adde5b043741c91ba143f5f7db0fd 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>
-rw-r--r--drivers/net/wireless/b43/pio.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/net/wireless/b43/pio.c b/drivers/net/wireless/b43/pio.c
index fcff923b3c1..279a53eae4c 100644
--- a/drivers/net/wireless/b43/pio.c
+++ b/drivers/net/wireless/b43/pio.c
@@ -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));
}