net: wwan: iosm: fixes unable to send AT command during mbim tx

ev_cdev_write_pending flag is preventing a TX message post for
AT port while MBIM transfer is ongoing.

Removed the unnecessary check around control port TX transfer.

Signed-off-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem.c b/drivers/net/wwan/iosm/iosm_ipc_imem.c
index e2c0968..12c03da 100644 (file)
--- a/drivers/net/wwan/iosm/iosm_ipc_imem.c
+++ b/drivers/net/wwan/iosm/iosm_ipc_imem.c
@@ -1270,7 +1270,6 @@ struct iosm_imem *ipc_imem_init(struct iosm_pcie *pcie, unsigned int device_id,
 
        ipc_imem->pci_device_id = device_id;
 
-       ipc_imem->ev_cdev_write_pending = false;
        ipc_imem->cp_version = 0;
        ipc_imem->device_sleep = IPC_HOST_SLEEP_ENTER_SLEEP;
 

diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem.h b/drivers/net/wwan/iosm/iosm_ipc_imem.h
index 6b479fe..6b8a837 100644 (file)
--- a/drivers/net/wwan/iosm/iosm_ipc_imem.h
+++ b/drivers/net/wwan/iosm/iosm_ipc_imem.h
@@ -336,8 +336,6 @@ enum ipc_phase {
  *                             process the irq actions.
  * @flag:                      Flag to monitor the state of driver
  * @td_update_timer_suspended: if true then td update timer suspend
- * @ev_cdev_write_pending:     0 means inform the IPC tasklet to pass
- *                             the accumulated uplink buffers to CP.
  * @ev_mux_net_transmit_pending:0 means inform the IPC tasklet to pass
  * @reset_det_n:               Reset detect flag
  * @pcie_wake_n:               Pcie wake flag
@@ -375,7 +373,6 @@ struct iosm_imem {
        u8 ev_irq_pending[IPC_IRQ_VECTORS];
        unsigned long flag;
        u8 td_update_timer_suspended:1,
-          ev_cdev_write_pending:1,
           ev_mux_net_transmit_pending:1,
           reset_det_n:1,
           pcie_wake_n:1;

diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c
index 09261fb..831cdae 100644 (file)
--- a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c
+++ b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c
@@ -41,7 +41,6 @@ void ipc_imem_sys_wwan_close(struct iosm_imem *ipc_imem, int if_id,
 static int ipc_imem_tq_cdev_write(struct iosm_imem *ipc_imem, int arg,
                                  void *msg, size_t size)
 {
-       ipc_imem->ev_cdev_write_pending = false;
        ipc_imem_ul_send(ipc_imem);
 
        return 0;
@@ -50,11 +49,6 @@ static int ipc_imem_tq_cdev_write(struct iosm_imem *ipc_imem, int arg,
 /* Through tasklet to do sio write. */
 static int ipc_imem_call_cdev_write(struct iosm_imem *ipc_imem)
 {
-       if (ipc_imem->ev_cdev_write_pending)
-               return -1;
-
-       ipc_imem->ev_cdev_write_pending = true;
-
        return ipc_task_queue_send_task(ipc_imem, ipc_imem_tq_cdev_write, 0,
                                        NULL, 0, false);
 }