kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

amd64_edac: fix interleave enable tests

Browse source 
The pvt->dram_IntlvEn saves the 3 "Interleave Enable" bits already
right-shifted by 8 so the check in find_mc_by_sys_addr() by shifting the
values to the left 8 bits is wrong.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
This commit is contained in:
Borislav Petkov 2009-09-18 12:27:27 +02:00
parent 916d11b2b5
commit 72f158fe6f
1 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/edac/amd64_edac.c
View file

@ -289,12 +289,12 @@ static struct mem_ctl_info *find_mc_by_sys_addr(struct mem_ctl_info *mci,
goto found;
}
if (unlikely((intlv_en != (0x01 << 8)) &&
(intlv_en != (0x03 << 8)) &&
(intlv_en != (0x07 << 8)))) {
if (unlikely((intlv_en != 0x01) &&
(intlv_en != 0x03) &&
(intlv_en != 0x07))) {
amd64_printk(KERN_WARNING, "junk value of 0x%x extracted from "
"IntlvEn field of DRAM Base Register for node 0: "
"This probably indicates a BIOS bug.\n", intlv_en);
"this probably indicates a BIOS bug.\n", intlv_en);
return NULL;
}