From: Daniel Drake <dsd@laptop.org>
Date: Tue, 19 Feb 2013 20:09:47 +0000 (-0500)
Subject: mwifiex: don't drop carrier flag over suspend
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1499d9f;p=linux-beck.git

mwifiex: don't drop carrier flag over suspend

If the system suspends with mwifiex wifi powered on, and is then woken
by an ICMP ping packet, the ping response is discarded by the kernel
because the kernel incorrectly thinks there is no carrier.

I can't see any valid reason to want to report loss of carrier here,
so remove the offending code.

Fixes http://dev.laptop.org/ticket/12554

Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index 4b54bcf382f3..22db934bd403 100644
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -171,7 +171,7 @@ static int mwifiex_pcie_suspend(struct pci_dev *pdev, pm_message_t state)
 {
 	struct mwifiex_adapter *adapter;
 	struct pcie_service_card *card;
-	int hs_actived, i;
+	int hs_actived;
 
 	if (pdev) {
 		card = (struct pcie_service_card *) pci_get_drvdata(pdev);
@@ -191,9 +191,6 @@ static int mwifiex_pcie_suspend(struct pci_dev *pdev, pm_message_t state)
 	/* Indicate device suspended */
 	adapter->is_suspended = true;
 
-	for (i = 0; i < adapter->priv_num; i++)
-		netif_carrier_off(adapter->priv[i]->netdev);
-
 	return 0;
 }
 
@@ -209,7 +206,6 @@ static int mwifiex_pcie_resume(struct pci_dev *pdev)
 {
 	struct mwifiex_adapter *adapter;
 	struct pcie_service_card *card;
-	int i;
 
 	if (pdev) {
 		card = (struct pcie_service_card *) pci_get_drvdata(pdev);
@@ -231,10 +227,6 @@ static int mwifiex_pcie_resume(struct pci_dev *pdev)
 
 	adapter->is_suspended = false;
 
-	for (i = 0; i < adapter->priv_num; i++)
-		if (adapter->priv[i]->media_connected)
-			netif_carrier_on(adapter->priv[i]->netdev);
-
 	mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
 			  MWIFIEX_ASYNC_CMD);
 
diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index e35b67a9e6a6..e819a4e82ca2 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -161,7 +161,6 @@ static int mwifiex_sdio_suspend(struct device *dev)
 	struct sdio_mmc_card *card;
 	struct mwifiex_adapter *adapter;
 	mmc_pm_flag_t pm_flag = 0;
-	int i;
 	int ret = 0;
 
 	if (func) {
@@ -198,9 +197,6 @@ static int mwifiex_sdio_suspend(struct device *dev)
 	/* Indicate device suspended */
 	adapter->is_suspended = true;
 
-	for (i = 0; i < adapter->priv_num; i++)
-		netif_carrier_off(adapter->priv[i]->netdev);
-
 	return ret;
 }
 
@@ -220,7 +216,6 @@ static int mwifiex_sdio_resume(struct device *dev)
 	struct sdio_mmc_card *card;
 	struct mwifiex_adapter *adapter;
 	mmc_pm_flag_t pm_flag = 0;
-	int i;
 
 	if (func) {
 		pm_flag = sdio_get_host_pm_caps(func);
@@ -243,10 +238,6 @@ static int mwifiex_sdio_resume(struct device *dev)
 
 	adapter->is_suspended = false;
 
-	for (i = 0; i < adapter->priv_num; i++)
-		if (adapter->priv[i]->media_connected)
-			netif_carrier_on(adapter->priv[i]->netdev);
-
 	/* Disable Host Sleep */
 	mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
 			  MWIFIEX_ASYNC_CMD);