2013-03-21 00:57:56

by Bing Zhao

[permalink] [raw]
Subject: [PATCH 3.9] mwifiex: reset skb->data after processing PCIe sleep confirm cmd respose

From: Avinash Patil <[email protected]>

This patch is a bug fix for an issue wherein power save was not
working for PCIe. This happens because for processing power save
sleep confirm command we pull skb so that skb->data points ahead
of interface header. We use same skb to get other cmda responses
as well. So if we don't push skb after processing cmd response,
it results into reduction in skb->len and finally skb->len reaches
zero. This causes failure in processing sleep command response.
Fix this by pushing skb by INTF_HEADER_LEN at the end of command
response processing.

Signed-off-by: Avinash Patil <[email protected]>
Signed-off-by: Bing Zhao <[email protected]>
drivers/net/wireless/mwifiex/pcie.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index 7ee4289..b6710c7 100644
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -1521,6 +1521,7 @@ static int mwifiex_pcie_process_cmd_complete(struct mwifiex_adapter *adapter)
memcpy(adapter->upld_buf, skb->data,
min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER, skb->len));
+ skb_push(skb, INTF_HEADER_LEN);
if (mwifiex_map_pci_memory(adapter, skb, MWIFIEX_UPLD_SIZE,
return -1;