This is a note to let you know that I've just added the patch titled
pstore: Fix flags to enable dumps on powerpc
to the 4.11-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:
pstore-fix-flags-to-enable-dumps-on-powerpc.patch
and it can be found in the queue-4.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 041939c1ec54208b42f5cd819209173d52a29d34 Mon Sep 17 00:00:00 2001
From: Ankit Kumar <ankit@xxxxxxxxxxxxxxxxxx>
Date: Thu, 27 Apr 2017 17:03:13 +0530
Subject: pstore: Fix flags to enable dumps on powerpc
From: Ankit Kumar <ankit@xxxxxxxxxxxxxxxxxx>
commit 041939c1ec54208b42f5cd819209173d52a29d34 upstream.
After commit c950fd6f201a kernel registers pstore write based on flag set.
Pstore write for powerpc is broken as flags(PSTORE_FLAGS_DMESG) is not set for
powerpc architecture. On panic, kernel doesn't write message to
/fs/pstore/dmesg*(Entry doesn't gets created at all).
This patch enables pstore write for powerpc architecture by setting
PSTORE_FLAGS_DMESG flag.
Fixes: c950fd6f201a ("pstore: Split pstore fragile flags")
Signed-off-by: Ankit Kumar <ankit@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/kernel/nvram_64.c | 1 +
1 file changed, 1 insertion(+)
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -561,6 +561,7 @@ static ssize_t nvram_pstore_read(u64 *id
static struct pstore_info nvram_pstore_info = {
.owner = THIS_MODULE,
.name = "nvram",
+ .flags = PSTORE_FLAGS_DMESG,
.open = nvram_pstore_open,
.read = nvram_pstore_read,
.write = nvram_pstore_write,
Patches currently in stable-queue which might be from ankit@xxxxxxxxxxxxxxxxxx are
queue-4.11/pstore-fix-flags-to-enable-dumps-on-powerpc.patch