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path: root/drivers/staging/usbip/usbip_common.c
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Diffstat (limited to 'drivers/staging/usbip/usbip_common.c')
-rw-r--r--drivers/staging/usbip/usbip_common.c105
1 files changed, 0 insertions, 105 deletions
diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c
index 210ef16bab8d..337abc48f714 100644
--- a/drivers/staging/usbip/usbip_common.c
+++ b/drivers/staging/usbip/usbip_common.c
@@ -18,7 +18,6 @@
*/
#include <linux/kernel.h>
-#include <linux/smp_lock.h>
#include <linux/file.h>
#include <linux/tcp.h>
#include <linux/in.h>
@@ -349,110 +348,6 @@ void usbip_dump_header(struct usbip_header *pdu)
}
EXPORT_SYMBOL_GPL(usbip_dump_header);
-
-/*-------------------------------------------------------------------------*/
-/* thread routines */
-
-int usbip_thread(void *param)
-{
- struct usbip_task *ut = param;
-
- if (!ut)
- return -EINVAL;
-
- lock_kernel();
- daemonize(ut->name);
- allow_signal(SIGKILL);
- ut->thread = current;
- unlock_kernel();
-
- /* srv.rb must wait for rx_thread starting */
- complete(&ut->thread_done);
-
- /* start of while loop */
- ut->loop_ops(ut);
-
- /* end of loop */
- ut->thread = NULL;
-
- complete_and_exit(&ut->thread_done, 0);
-}
-
-static void stop_rx_thread(struct usbip_device *ud)
-{
- if (ud->tcp_rx.thread != NULL) {
- send_sig(SIGKILL, ud->tcp_rx.thread, 1);
- wait_for_completion(&ud->tcp_rx.thread_done);
- usbip_udbg("rx_thread for ud %p has finished\n", ud);
- }
-}
-
-static void stop_tx_thread(struct usbip_device *ud)
-{
- if (ud->tcp_tx.thread != NULL) {
- send_sig(SIGKILL, ud->tcp_tx.thread, 1);
- wait_for_completion(&ud->tcp_tx.thread_done);
- usbip_udbg("tx_thread for ud %p has finished\n", ud);
- }
-}
-
-int usbip_start_threads(struct usbip_device *ud)
-{
- /*
- * threads are invoked per one device (per one connection).
- */
- struct task_struct *th;
- int err = 0;
-
- th = kthread_run(usbip_thread, (void *)&ud->tcp_rx, "usbip");
- if (IS_ERR(th)) {
- printk(KERN_WARNING
- "Unable to start control thread\n");
- err = PTR_ERR(th);
- goto ust_exit;
- }
-
- th = kthread_run(usbip_thread, (void *)&ud->tcp_tx, "usbip");
- if (IS_ERR(th)) {
- printk(KERN_WARNING
- "Unable to start control thread\n");
- err = PTR_ERR(th);
- goto tx_thread_err;
- }
-
- /* confirm threads are starting */
- wait_for_completion(&ud->tcp_rx.thread_done);
- wait_for_completion(&ud->tcp_tx.thread_done);
-
- return 0;
-
-tx_thread_err:
- stop_rx_thread(ud);
-
-ust_exit:
- return err;
-}
-EXPORT_SYMBOL_GPL(usbip_start_threads);
-
-void usbip_stop_threads(struct usbip_device *ud)
-{
- /* kill threads related to this sdev, if v.c. exists */
- stop_rx_thread(ud);
- stop_tx_thread(ud);
-}
-EXPORT_SYMBOL_GPL(usbip_stop_threads);
-
-void usbip_task_init(struct usbip_task *ut, char *name,
- void (*loop_ops)(struct usbip_task *))
-{
- ut->thread = NULL;
- init_completion(&ut->thread_done);
- ut->name = name;
- ut->loop_ops = loop_ops;
-}
-EXPORT_SYMBOL_GPL(usbip_task_init);
-
-
/*-------------------------------------------------------------------------*/
/* socket routines */