[x86 setup] EDD: add missing =m constraint



Add a missing =m constraint to the EDD-probing code, that could have
caused improper dead-code elimination.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

parent 59acc08f

arch/i386/boot/edd.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -127,7 +127,7 @@ static int get_edd_info(u8 devno, struct edd_info *ei)
		ax = 0x4800;
		dx = devno;
		asm("pushfl; int $0x13; popfl"
		: "+a" (ax), "+d" (dx)
		: "+a" (ax), "+d" (dx), "=m" (ei->params)
		: "S" (&ei->params)
		: "ebx", "ecx", "edi");