This is a note to let you know that I've just added the patch titled
EDAC/amd64: Do not load on family 0x15, model 0x13
to the 5.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
edac-amd64-do-not-load-on-family-0x15-model-0x13.patch
and it can be found in the queue-5.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit d9d04c263beccecd9a69589189a2d6e774b09040
Author: Borislav Petkov <bp@xxxxxxx>
Date: Sat Dec 12 15:20:28 2020 +0100
EDAC/amd64: Do not load on family 0x15, model 0x13
[ Upstream commit 6c13d7ff81e6d2f01f62ccbfa49d1b8d87f274d0 ]
Those were only laptops and are very very unlikely to have ECC memory.
Currently, when the driver attempts to load, it issues:
EDAC amd64: Error: F1 not found: device 0x1601 (broken BIOS?)
because the PCI device is the wrong one (it uses the F15h default one).
So do not load the driver on them as that is pointless.
Reported-by: Don Curtis <bugrprt21882@xxxxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Tested-by: Don Curtis <bugrprt21882@xxxxxxxxx>
Link: http://bugzilla.opensuse.org/show_bug.cgi?id=1179763
Link: https://lkml.kernel.org/r/20201218160622.20146-1-bp@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index f7087ddddb90..5754f429a8d2 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -3342,10 +3342,13 @@ static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt)
fam_type = &family_types[F15_M60H_CPUS];
pvt->ops = &family_types[F15_M60H_CPUS].ops;
break;
+ /* Richland is only client */
+ } else if (pvt->model == 0x13) {
+ return NULL;
+ } else {
+ fam_type = &family_types[F15_CPUS];
+ pvt->ops = &family_types[F15_CPUS].ops;
}
-
- fam_type = &family_types[F15_CPUS];
- pvt->ops = &family_types[F15_CPUS].ops;
break;
case 0x16:
@@ -3539,6 +3542,7 @@ static int probe_one_instance(unsigned int nid)
pvt->mc_node_id = nid;
pvt->F3 = F3;
+ ret = -ENODEV;
fam_type = per_family_init(pvt);
if (!fam_type)
goto err_enable;
