This is a note to let you know that I've just added the patch titled
powerpc/eeh: Fix wrong flag passed to eeh_unfreeze_pe()
to the 4.4-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-fix-wrong-flag-passed-to-eeh_unfreeze_pe.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f05fea5b3574a5926c53865eea27139bb40b2f2b Mon Sep 17 00:00:00 2001
From: Gavin Shan <gwshan@xxxxxxxxxxxxxxxxxx>
Date: Thu, 19 Jan 2017 10:10:16 +1100
Subject: powerpc/eeh: Fix wrong flag passed to eeh_unfreeze_pe()
From: Gavin Shan <gwshan@xxxxxxxxxxxxxxxxxx>
commit f05fea5b3574a5926c53865eea27139bb40b2f2b upstream.
In __eeh_clear_pe_frozen_state(), we should pass the flag's value
instead of its address to eeh_unfreeze_pe(). The isolated flag is
cleared if no error returned from __eeh_clear_pe_frozen_state(). We
never observed the error from the function. So the isolated flag should
have been always cleared, no real issue is caused because of the misused
@flag.
This fixes the code by passing the value of @flag to eeh_unfreeze_pe().
Fixes: 5cfb20b96f6 ("powerpc/eeh: Emulate EEH recovery for VFIO devices")
Signed-off-by: Gavin Shan <gwshan@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/kernel/eeh_driver.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/powerpc/kernel/eeh_driver.c
+++ b/arch/powerpc/kernel/eeh_driver.c
@@ -485,7 +485,7 @@ static void *eeh_pe_detach_dev(void *dat
static void *__eeh_clear_pe_frozen_state(void *data, void *flag)
{
struct eeh_pe *pe = (struct eeh_pe *)data;
- bool *clear_sw_state = flag;
+ bool clear_sw_state = *(bool *)flag;
int i, rc = 1;
for (i = 0; rc && i < 3; i++)
Patches currently in stable-queue which might be from gwshan@xxxxxxxxxxxxxxxxxx are
queue-4.4/powerpc-eeh-fix-wrong-flag-passed-to-eeh_unfreeze_pe.patch
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