From 6fb6b8846458afb7b5689f86cf35705c40eb70e5 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 22 Mar 2011 11:12:20 +0100 Subject: [PATCH] USB: cdc-acm: remove unused drain-delay code The drain-delay code is no longer used, so remove it. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 6 ------ drivers/usb/class/cdc-acm.h | 1 - 2 files changed, 7 deletions(-) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index b84ccec8fc7b..e0f9febee7e6 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -50,9 +50,6 @@ #include "cdc-acm.h" -#define ACM_CLOSE_TIMEOUT 15 /* seconds to let writes drain */ - - #define DRIVER_AUTHOR "Armin Fuerst, Pavel Machek, Johannes Erdfelt, Vojtech Pavlik, David Kubicek" #define DRIVER_DESC "USB Abstract Control Model driver for USB modems and ISDN adapters" @@ -507,8 +504,6 @@ static void acm_write_bulk(struct urb *urb) spin_unlock_irqrestore(&acm->write_lock, flags); if (ACM_READY(acm)) schedule_work(&acm->work); - else - wake_up_interruptible(&acm->drain_wait); } static void acm_softint(struct work_struct *work) @@ -1155,7 +1150,6 @@ made_compressed_probe: acm->urb_task.func = acm_rx_tasklet; acm->urb_task.data = (unsigned long) acm; INIT_WORK(&acm->work, acm_softint); - init_waitqueue_head(&acm->drain_wait); spin_lock_init(&acm->throttle_lock); spin_lock_init(&acm->write_lock); spin_lock_init(&acm->read_lock); diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index b4ea54dbf323..7282d1f4912b 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -112,7 +112,6 @@ struct acm { struct mutex mutex; struct usb_cdc_line_coding line; /* bits, stop, parity */ struct work_struct work; /* work queue entry for line discipline waking up */ - wait_queue_head_t drain_wait; /* close processing */ struct tasklet_struct urb_task; /* rx processing */ spinlock_t throttle_lock; /* synchronize throtteling and read callback */ unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */ -- 2.20.1