On 12/27/2011 05:05 PM, Guennadi Liakhovetski wrote:
On Tue, 27 Dec 2011, Rafał Miłecki wrote:
W dniu 26 grudnia 2011 18:28 użytkownik Guennadi Liakhovetski
<g.liakhovetski@xxxxxx> napisał:
This patch fixes the regression, introduced by
commit 17030f48e31adde5b043741c91ba143f5f7db0fd
From: Rafał Miłecki<zajec5@xxxxxxxxx>
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@xxxxxx>
---
diff --git a/drivers/net/wireless/b43/pio.c b/drivers/net/wireless/b43/pio.c
index ce8a4bd..b64b64c 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);
Huuh, that's really tricky. Can you just do "normal" conditions as
Larry suggested, please?
Sorry? I absolutely see nothing tricky there. Do you think this would look
"less tricky" to you:
switch (dev->fw.hdr_format) {
case B43_FW_HDR_410:
case B43_FW_HDR_351:
rxhdr_size = offsetof(struct b43_rxhdr_fw4,
format_351) +
sizeof(rxhdr_size->format_351);
break;
case B43_FW_HDR_598:
rxhdr_size = sizeof(*rxhdr);
break;
}
How about this?
Index: wireless-testing-new/drivers/net/wireless/b43/pio.c
===================================================================
--- wireless-testing-new.orig/drivers/net/wireless/b43/pio.c
+++ wireless-testing-new/drivers/net/wireless/b43/pio.c
@@ -617,9 +617,20 @@ static bool pio_rx_frame(struct b43_pio_
const char *err_msg = NULL;
struct b43_rxhdr_fw4 *rxhdr =
(struct b43_rxhdr_fw4 *)wl->pio_scratchspace;
+ size_t rxhdr_size;
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_351);
+ break;
+ case B43_FW_HDR_598:
+ default:
+ rxhdr_size = sizeof(rxhdr->format_598);
+ break;
+ }
+ memset(rxhdr, 0, rxhdr_size);
/* Check if we have data and wait for it to get ready. */
if (q->rev >= 8) {
Larry
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