Commit c9235e28 authored Dec 02, 2016 by Benjamin Walsh Committed by Kumar Gala Dec 02, 2016

x86: fix irq_lock/unlock ordering bug



Memory accesses could be reordered before an irq_lock() or after an
irq_unlock() without the memory barriers.

See commit 15bc5377 for the ARM fix for
a complete description of the issue and fix.

Change-Id: Ic92a6b33f62a938d2252d68eccc55a5fb07c9114
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
(cherry picked from commit 1f8125a4)

parent d97299c9

include/arch/x86/asm_inline_gcc.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -82,7 +82,7 @@ static ALWAYS_INLINE void _do_irq_unlock(void)
		{
		__asm__ volatile (
		"sti;\n\t"
		: :
		: : : "memory"
		);
		}

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