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RE: linux-4.14-rc2/drivers/acpi/acpica/utmath.c: 2 * suspicious expression ?

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  RE: linux-4.14-rc2/drivers/acpi/acpica/utmath.c: 2 * suspicious  expression ? "Zheng, Lv" <lv.zheng@intel.com> - 2017-09-28 05:00 +0200

#1741143 — RE: linux-4.14-rc2/drivers/acpi/acpica/utmath.c: 2 * suspicious expression ?

Hi, David

Not a fancy way, but just a bit clearing.
OK, style is changed here:
https://github.com/acpica/acpica/pull/321
And bug is recorded here:
https://bugs.acpica.org/show_bug.cgi?id=1422

Thanks for the report.

Best regards
Lv

> From: David Binderman [mailto:dcb314@hotmail.com]
> Subject: linux-4.14-rc2/drivers/acpi/acpica/utmath.c: 2 * suspicious expression ?
> 
> Hello there,
> 
> [linux-4.14-rc2/drivers/acpi/acpica/utmath.c:137] -> [linux-4.14-rc2/drivers/acpi/acpica/utmath.c:137]:
> (style) Same expression on both sides of '^='.
> [linux-4.14-rc2/drivers/acpi/acpica/utmath.c:174] -> [linux-4.14-rc2/drivers/acpi/acpica/utmath.c:174]:
> (style) Same expression on both sides of '^='.
> 
>     operand_ovl.part.lo ^= operand_ovl.part.lo;
> 
> Is this just a fancy way to zero the field or should something more clever
> be happening ?
> 
> Regards
> 
> David Binderman
> 

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