staging: brcm80211: move sdio resource lock to dhd_sdio.c

In fullmac the lock is for race condition for sdio interface. Move
the code to dhd_sdio.c

Signed-off-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmfmac/dhd.h

@@ -810,10 +810,6 @@ extern uint brcmf_sdiod_drive_strength;
 /* Override to force tx queueing all the time */
 extern uint brcmf_force_tx_queueing;
 
-/* thread priority for watchdog and dpc */
-extern int brcmf_watchdog_prio;
-extern int brcmf_dpc_prio;
-
 #ifdef SDTEST
 /* Echo packet generator (SDIO), pkts/s */
 extern uint brcmf_pktgen;
@@ -919,8 +915,6 @@ extern void brcmf_os_set_ioctl_resp_timeout(unsigned int timeout_msec);
 extern void *brcmf_os_open_image(char *filename);
 extern int brcmf_os_get_image_block(char *buf, int len, void *image);
 extern void brcmf_os_close_image(void *image);
-extern void brcmf_os_sdlock(dhd_pub_t *pub);
-extern void brcmf_os_sdunlock(dhd_pub_t *pub);
 extern void brcmf_os_sdlock_sndup_rxq(dhd_pub_t *pub);
 extern void brcmf_customer_gpio_wlan_ctrl(int onoff);
 extern int brcmf_custom_get_mac_address(unsigned char *buf);

drivers/staging/brcm80211/brcmfmac/dhd_linux.c

@@ -82,10 +82,6 @@ typedef struct dhd_info {
 
 	struct semaphore proto_sem;
 	wait_queue_head_t ioctl_resp_wait;
-	spinlock_t sdlock;
-	/* Thread based operation */
-	bool threads_only;
-	struct semaphore sdsem;
 
 	/* Thread to issue ioctl for multicast */
 	struct task_struct *sysioc_tsk;
@@ -1489,9 +1485,6 @@ dhd_pub_t *brcmf_attach(struct dhd_bus *bus, uint bus_hdrlen)
 	/* Initialize other structure content */
 	init_waitqueue_head(&dhd->ioctl_resp_wait);
 
-	/* Initialize the spinlocks */
-	spin_lock_init(&dhd->sdlock);
-
 	/* Link to info module */
 	dhd->pub.info = dhd;
 
@@ -1515,13 +1508,6 @@ dhd_pub_t *brcmf_attach(struct dhd_bus *bus, uint bus_hdrlen)
 		strcpy(brcmf_nv_path, wl_cfg80211_get_nvramname());
 	}
 
-	/* Initialize thread based operation and lock */
-	sema_init(&dhd->sdsem, 1);
-	if ((brcmf_watchdog_prio >= 0) && (brcmf_dpc_prio >= 0))
-		dhd->threads_only = true;
-	else
-		dhd->threads_only = false;
-
 	if (brcmf_sysioc) {
 		sema_init(&dhd->sysioc_sem, 0);
 		dhd->sysioc_tsk = kthread_run(_brcmf_sysioc_thread, dhd,
@@ -1941,30 +1927,6 @@ void brcmf_os_close_image(void *image)
 		filp_close((struct file *)image, NULL);
 }
 
-void brcmf_os_sdlock(dhd_pub_t *pub)
-{
-	dhd_info_t *dhd;
-
-	dhd = (dhd_info_t *) (pub->info);
-
-	if (dhd->threads_only)
-		down(&dhd->sdsem);
-	else
-		spin_lock_bh(&dhd->sdlock);
-}
-
-void brcmf_os_sdunlock(dhd_pub_t *pub)
-{
-	dhd_info_t *dhd;
-
-	dhd = (dhd_info_t *) (pub->info);
-
-	if (dhd->threads_only)
-		up(&dhd->sdsem);
-	else
-		spin_unlock_bh(&dhd->sdlock);
-}
-
 static int brcmf_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
 			    brcmf_event_msg_t *event, void **data)
 {