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[ARM] 3420/1: Missing clobber in example code

Patch from Paul Brook

The example code in the source documentation for __kernel_dmb
clobbers r0 but doesn't list it the asm clobber list.

Signed-off-by: Paul Brook <paul@codesourcery.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

authored by

Paul Brook and committed by
Russell King 6896eec0 ae574a5d

+1 -1
unified split
+1 -1
arch/arm/kernel/entry-armv.S
··· 666 666 * 667 667 * #define __kernel_dmb() \ 668 668 * asm volatile ( "mov r0, #0xffff0fff; mov lr, pc; sub pc, r0, #95" \ 669 - * : : : "lr","cc" ) 669 + * : : : "r0", "lr","cc" ) 670 670 */ 671 671 672 672 __kuser_memory_barrier: @ 0xffff0fa0