On 2021/4/15 22:53, Greg Kroah-Hartman wrote:
> On Thu, Apr 15, 2021 at 10:24:04PM +0800, Zhen Lei wrote:
>> Commit 273ef9509b79 ("drivers/char/hpet.c: fix periodic-emulation for
>> delayed interrupt") removed the reference to local variable 'm', but
>> forgot to remove the definition and
On Thu, Apr 15, 2021 at 10:24:04PM +0800, Zhen Lei wrote:
> Commit 273ef9509b79 ("drivers/char/hpet.c: fix periodic-emulation for
> delayed interrupt") removed the reference to local variable 'm', but
> forgot to remove the definition and assignment of it. Due to
> read_counter() indirectly calls
Commit 273ef9509b79 ("drivers/char/hpet.c: fix periodic-emulation for
delayed interrupt") removed the reference to local variable 'm', but
forgot to remove the definition and assignment of it. Due to
read_counter() indirectly calls "read barrier", the performance is
slightly degraded.
Since the
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