This is a note to let you know that I've just added the patch titled
powerpc/eeh: Create PHB PEs after EEH is initialized
to the 4.13-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:
powerpc-eeh-create-phb-pes-after-eeh-is-initialized.patch
and it can be found in the queue-4.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 3e77adeea3c5393c9b624832f65441e92867f618 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Date: Thu, 7 Sep 2017 16:35:40 +1000
Subject: powerpc/eeh: Create PHB PEs after EEH is initialized
From: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
commit 3e77adeea3c5393c9b624832f65441e92867f618 upstream.
Otherwise we end up not yet having computed the right diag data size
on powernv where EEH initialization is delayed, thus causing memory
corruption later on when calling OPAL.
Fixes: 5cb1f8fdddb7 ("powerpc/powernv/pci: Dynamically allocate PHB diag data")
Signed-off-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Acked-by: Russell Currey <ruscur@xxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/kernel/eeh.c | 4 ++++
arch/powerpc/kernel/eeh_dev.c | 18 ------------------
2 files changed, 4 insertions(+), 18 deletions(-)
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -1018,6 +1018,10 @@ int eeh_init(void)
} else if ((ret = eeh_ops->init()))
return ret;
+ /* Initialize PHB PEs */
+ list_for_each_entry_safe(hose, tmp, &hose_list, list_node)
+ eeh_dev_phb_init_dynamic(hose);
+
/* Initialize EEH event */
ret = eeh_event_init();
if (ret)
--- a/arch/powerpc/kernel/eeh_dev.c
+++ b/arch/powerpc/kernel/eeh_dev.c
@@ -83,21 +83,3 @@ void eeh_dev_phb_init_dynamic(struct pci
/* EEH PE for PHB */
eeh_phb_pe_create(phb);
}
-
-/**
- * eeh_dev_phb_init - Create EEH devices for devices included in existing PHBs
- *
- * Scan all the existing PHBs and create EEH devices for their OF
- * nodes and their children OF nodes
- */
-static int __init eeh_dev_phb_init(void)
-{
- struct pci_controller *phb, *tmp;
-
- list_for_each_entry_safe(phb, tmp, &hose_list, list_node)
- eeh_dev_phb_init_dynamic(phb);
-
- return 0;
-}
-
-core_initcall(eeh_dev_phb_init);
Patches currently in stable-queue which might be from benh@xxxxxxxxxxxxxxxxxxx are
queue-4.13/kvm-ppc-book3s-hv-don-t-access-xive-pipr-register-using-byte-accesses.patch
queue-4.13/powerpc-eeh-create-phb-pes-after-eeh-is-initialized.patch