usbip: use monotonic timestamps

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This gets rid of the deprecated do_gettimeofday() function in usbip.
The comment above vgadget_get_frame() mentions that it suffers
from issues with the time jumps due to suspend and settimeofday,
so I'm changing it to use ktime_get_ts64() to use monotonic times
that don't have this problem.

I couldn't tell whether we should use CLOCK_MONOTONIC or
CLOCK_MONOTONIC_RAW here, the difference being the exact rate
when correcting for NTP. I picked monotonic time since it doesn't
change the speed to the existing code and should be better
synchronized with other machines we talk to.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Arnd Bergmann 2017-11-07 11:39:57 +01:00 • committed by Greg Kroah-Hartman

parent 15081e85cc

commit 6c51441cd0

3 changed files with 5 additions and 6 deletions

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2

drivers/usb/usbip/vudc.h

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7

drivers/usb/usbip/vudc_dev.c

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2

drivers/usb/usbip/vudc_sysfs.c

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