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authorThomas Gleixner <tglx@linutronix.de>2016-12-08 20:49:38 +0000
committerThomas Gleixner <tglx@linutronix.de>2016-12-09 12:06:42 +0100
commitc029a2bec66e42e57538cb65e28618baf6a4b311 (patch)
tree44a053f24b8ab7f3a81826d181499aa0513b8812 /drivers/char
parentcbd99e3b289e43000c29aa4aa9b94b394cdc68bd (diff)
timekeeping: Use mul_u64_u32_shr() instead of open coding it
The resume code must deal with a clocksource delta which is potentially big enough to overflow the 64bit mult. Replace the open coded handling with the proper function. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Parit Bhargava <prarit@redhat.com> Cc: Laurent Vivier <lvivier@redhat.com> Cc: "Christopher S. Hall" <christopher.s.hall@intel.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Liav Rehana <liavr@mellanox.com> Cc: John Stultz <john.stultz@linaro.org> Link: http://lkml.kernel.org/r/20161208204228.921674404@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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