metag/usercopy: Simplify rapf loop fixup corner case

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The final fixup in the rapf loops must handle a corner case due to the
intermediate decrementing of the destination pointer before writing the
last element to it again and re-incrementing it. This decrement (and the
associated increment in the fixup code) can be easily avoided by using
SETL/SETD with an offset of -8/-4.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-metag@vger.kernel.org

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James Hogan 2017-04-04 11:42:35 +01:00

parent 049520dcb3

commit fc1b759ae4

1 changed files with 2 additions and 8 deletions

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arch/metag/lib/usercopy.c

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