openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu 2008-09-19 11:45:04 -07:00 committed by Ingo Molnar
parent 0b88641f1b
commit 16dc552f35
1 changed files with 1 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
arch/x86/kernel/cpu/mtrr/generic.c
View File

@ -401,12 +401,7 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base,
tmp |= ~((1<<(hi - 1)) - 1);
if (tmp != mask_lo) {
static int once = 1;
if (once) {
printk(KERN_INFO "mtrr: your BIOS has set up an incorrect mask, fixing it up.\n");
once = 0;
}
WARN_ONCE(1, KERN_INFO "mtrr: your BIOS has set up an incorrect mask, fixing it up.\n");
mask_lo = tmp;
}
}