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media: usbvision: remove time_in_irq

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Time "in interrupt" accounting with the help of `jiffies' is a pointless
exercise. This variable isn't even used.
Remove time_in_irq.

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Sebastian Andrzej Siewior 2018-06-20 07:01:03 -04:00 committed by Mauro Carvalho Chehab
parent 2b89b73a70
commit 0cd3edc98b
2 changed files with 0 additions and 4 deletions
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3
drivers/media/usb/usbvision/usbvision-core.c
View file

@ -1272,7 +1272,6 @@ static void usbvision_isoc_irq(struct urb *urb)
int len;
struct usb_usbvision *usbvision = urb->context;
int i;
unsigned long start_time = jiffies;
struct usbvision_frame **f;
/* We don't want to do anything if we are about to be removed! */
@ -1324,8 +1323,6 @@ static void usbvision_isoc_irq(struct urb *urb)
scratch_reset(usbvision);
}
usbvision->time_in_irq += jiffies - start_time;
for (i = 0; i < USBVISION_URB_FRAMES; i++) {
urb->iso_frame_desc[i].status = 0;
urb->iso_frame_desc[i].actual_length = 0;

1
drivers/media/usb/usbvision/usbvision.h
View file

@ -447,7 +447,6 @@ struct usb_usbvision {
unsigned long isoc_skip_count; /* How many empty ISO packets received */
unsigned long isoc_err_count; /* How many bad ISO packets received */
unsigned long isoc_packet_count; /* How many packets we totally got */
unsigned long time_in_irq; /* How long do we need for interrupt */
int isoc_measure_bandwidth_count;
int frame_num; /* How many video frames we send to user */
int max_strip_len; /* How big is the biggest strip */