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Commit 16dc552f authored by Yinghai Lu's avatar Yinghai Lu Committed by Ingo Molnar
Browse files

x86: use WARN_ONCE in workaround for mtrr mask 



so could help catch attention about bug in bios about mtrr mask setting.

WARN_ONCE got into mainline already, lets use it.

Signed-off-by: default avatarYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 0b88641f

arch/x86/kernel/cpu/mtrr/generic.c

+1 −6
Original line number Original line Diff line number Diff line
@@ -401,12 +401,7 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base, 
		tmp |= ~((1<<(hi - 1)) - 1);

		tmp |= ~((1<<(hi - 1)) - 1);





		if (tmp != mask_lo) {

		if (tmp != mask_lo) {

			static int once = 1;

			WARN_ONCE(1, KERN_INFO "mtrr: your BIOS has set up an incorrect mask, fixing it up.\n");



			if (once) {

				printk(KERN_INFO "mtrr: your BIOS has set up an incorrect mask, fixing it up.\n");

				once = 0;

			}

			mask_lo = tmp;

			mask_lo = tmp;

		}

		}

	}

	}