mwifiex: get rid of global user_rmmod flag
bus.remove() callback function is called when user removes this module
from kernel space or ejects the card from the slot. The driver handles
these 2 cases differently. Few commands (FUNC_SHUTDOWN etc.) are sent to
the firmware only for module unload case.
The variable 'user_rmmod' is used to distinguish between these two
scenarios.
This patch checks hardware status and get rid of global variable
user_rmmod.
Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index ed86c12..ea79e34 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -31,8 +31,6 @@
#define PCIE_VERSION "1.0"
#define DRV_NAME "Marvell mwifiex PCIe"
-static u8 user_rmmod;
-
static struct mwifiex_if_ops pcie_ops;
static const struct of_device_id mwifiex_pcie_of_match_table[] = {
@@ -284,6 +282,9 @@ static void mwifiex_pcie_remove(struct pci_dev *pdev)
struct pcie_service_card *card;
struct mwifiex_adapter *adapter;
struct mwifiex_private *priv;
+ const struct mwifiex_pcie_card_reg *reg;
+ u32 fw_status;
+ int ret;
card = pci_get_drvdata(pdev);
@@ -295,7 +296,11 @@ static void mwifiex_pcie_remove(struct pci_dev *pdev)
cancel_work_sync(&card->work);
- if (user_rmmod && !adapter->mfg_mode) {
+ reg = card->pcie.reg;
+ if (reg)
+ ret = mwifiex_read_reg(adapter, reg->fw_status, &fw_status);
+
+ if (fw_status == FIRMWARE_READY_PCIE && !adapter->mfg_mode) {
mwifiex_deauthenticate_all(adapter);
priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
@@ -310,7 +315,6 @@ static void mwifiex_pcie_remove(struct pci_dev *pdev)
static void mwifiex_pcie_shutdown(struct pci_dev *pdev)
{
- user_rmmod = 1;
mwifiex_pcie_remove(pdev);
return;
@@ -2874,8 +2878,11 @@ static void mwifiex_pcie_cleanup(struct mwifiex_adapter *adapter)
struct pcie_service_card *card = adapter->card;
struct pci_dev *pdev = card->dev;
const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+ int ret;
+ u32 fw_status;
- if (user_rmmod) {
+ ret = mwifiex_read_reg(adapter, reg->fw_status, &fw_status);
+ if (fw_status == FIRMWARE_READY_PCIE) {
mwifiex_dbg(adapter, INFO,
"Clearing driver ready signature\n");
if (mwifiex_write_reg(adapter, reg->drv_rdy, 0x00000000))
@@ -3187,9 +3194,6 @@ static int mwifiex_pcie_init_module(void)
pr_debug("Marvell PCIe Driver\n");
- /* Clear the flag in case user removes the card. */
- user_rmmod = 0;
-
ret = pci_register_driver(&mwifiex_pcie);
if (ret)
pr_err("Driver register failed!\n");
@@ -3210,9 +3214,6 @@ static int mwifiex_pcie_init_module(void)
*/
static void mwifiex_pcie_cleanup_module(void)
{
- /* Set the flag as user is removing this module. */
- user_rmmod = 1;
-
pci_unregister_driver(&mwifiex_pcie);
}
diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c b/drivers/net/wireless/marvell/mwifiex/sdio.c
index ba3bc95..0b6ed3f 100644
--- a/drivers/net/wireless/marvell/mwifiex/sdio.c
+++ b/drivers/net/wireless/marvell/mwifiex/sdio.c
@@ -31,21 +31,6 @@
#define SDIO_VERSION "1.0"
-/* The mwifiex_sdio_remove() callback function is called when
- * user removes this module from kernel space or ejects
- * the card from the slot. The driver handles these 2 cases
- * differently.
- * If the user is removing the module, the few commands (FUNC_SHUTDOWN,
- * HS_CANCEL etc.) are sent to the firmware.
- * If the card is removed, there is no need to send these command.
- *
- * The variable 'user_rmmod' is used to distinguish these two
- * scenarios. This flag is initialized as FALSE in case the card
- * is removed, and will be set to TRUE for module removal when
- * module_exit function is called.
- */
-static u8 user_rmmod;
-
static void mwifiex_sdio_work(struct work_struct *work);
static DECLARE_WORK(sdio_work, mwifiex_sdio_work);
@@ -391,6 +376,8 @@ __mwifiex_sdio_remove(struct sdio_func *func)
struct sdio_mmc_card *card;
struct mwifiex_adapter *adapter;
struct mwifiex_private *priv;
+ int ret = 0;
+ u16 firmware_stat;
card = sdio_get_drvdata(func);
if (!card)
@@ -404,7 +391,8 @@ __mwifiex_sdio_remove(struct sdio_func *func)
mwifiex_dbg(adapter, INFO, "info: SDIO func num=%d\n", func->num);
- if (user_rmmod && !adapter->mfg_mode) {
+ ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat);
+ if (firmware_stat == FIRMWARE_READY_SDIO && !adapter->mfg_mode) {
mwifiex_deauthenticate_all(adapter);
priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
@@ -2724,9 +2712,6 @@ static struct mwifiex_if_ops sdio_ops = {
static int
mwifiex_sdio_init_module(void)
{
- /* Clear the flag in case user removes the card. */
- user_rmmod = 0;
-
return sdio_register_driver(&mwifiex_sdio);
}
@@ -2742,10 +2727,6 @@ mwifiex_sdio_init_module(void)
static void
mwifiex_sdio_cleanup_module(void)
{
- /* Set the flag as user is removing this module. */
- user_rmmod = 1;
- cancel_work_sync(&sdio_work);
-
sdio_unregister_driver(&mwifiex_sdio);
}
diff --git a/drivers/net/wireless/marvell/mwifiex/usb.c b/drivers/net/wireless/marvell/mwifiex/usb.c
index c563160..53881c4 100644
--- a/drivers/net/wireless/marvell/mwifiex/usb.c
+++ b/drivers/net/wireless/marvell/mwifiex/usb.c
@@ -22,7 +22,6 @@
#define USB_VERSION "1.0"
-static u8 user_rmmod;
static struct mwifiex_if_ops usb_ops;
static struct usb_device_id mwifiex_usb_table[] = {
@@ -618,7 +617,7 @@ static void mwifiex_usb_disconnect(struct usb_interface *intf)
if (!adapter || !adapter->priv_num)
return;
- if (user_rmmod && !adapter->mfg_mode) {
+ if (card->udev->state != USB_STATE_NOTATTACHED && !adapter->mfg_mode) {
mwifiex_deauthenticate_all(adapter);
mwifiex_init_shutdown_fw(mwifiex_get_priv(adapter,
@@ -1230,9 +1229,6 @@ static int mwifiex_usb_init_module(void)
*/
static void mwifiex_usb_cleanup_module(void)
{
- /* set the flag as user is removing this module */
- user_rmmod = 1;
-
usb_deregister(&mwifiex_usb_driver);
}
