Re: [Xen-devel] [PATCH] x86: streamline copying to/from user memory

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 06/12/16 11:25, Jan Beulich wrote:
> Their size parameters being "unsigned", there's neither a point for
> them returning "unsigned long", nor for any of their (assembly)
> arithmetic to involved 64-bit operations on other than addresses.
>
> Take the opportunity and fold __do_clear_user() into its single user
> (using qword stores instead of dword ones), name all asm() operands,
> and reduce the amount of (redundant) operands.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

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