evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

x86: correctly report NR_BANKS in mce_64.c

Browse source 
attached is a no-brainer that makes kernel correctly report
NR_BANKS for MCE. We are right now limited to NR_BANKS==6, but the
error message will use the available number of banks instead of the
defined maximum.

For a Nehalem based system it will print:

"MCE: warning: using only 9 banks"

while the correct message would be

"MCE: warning: using only 6 banks"

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Daniel Rahn 2008-06-06 09:42:36 +02:00 • committed by Ingo Molnar
parent 8edc5cc5ec
commit b4b3bd96f2
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/x86/kernel/cpu/mcheck/mce_64.c
View file

@ -445,9 +445,9 @@ static void mce_init(void *dummy)
rdmsrl(MSR_IA32_MCG_CAP, cap); rdmsrl(MSR_IA32_MCG_CAP, cap);
banks = cap & 0xff; banks = cap & 0xff;
if (banks > MCE_EXTENDED_BANK) { if (banks > MCE_EXTENDED_BANK) {
banks = MCE_EXTENDED_BANK;
printk(KERN_INFO "MCE: warning: using only %d banks\n", printk(KERN_INFO "MCE: warning: using only %d banks\n",
MCE_EXTENDED_BANK); MCE_EXTENDED_BANK);
banks = MCE_EXTENDED_BANK;
} }
/* Use accurate RIP reporting if available. */ /* Use accurate RIP reporting if available. */
if ((cap & (1<<9)) && ((cap >> 16) & 0xff) >= 9) if ((cap & (1<<9)) && ((cap >> 16) & 0xff) >= 9)