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Patch "pstore: Fix flags to enable dumps on powerpc" has been added to the 4.10-stable tree

PATCH [email protected] 1 participant 1 message May 18, 2017

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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 4.10-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-4.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 041939c1ec54208b42f5cd819209173d52a29d34 Mon Sep 17 00:00:00 2001

From: Ankit Kumar <[email protected]>
Date: Thu, 27 Apr 2017 17:03:13 +0530
Subject: pstore: Fix flags to enable dumps on powerpc

From: Ankit Kumar <[email protected]>

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")
---
 arch/powerpc/kernel/nvram_64.c |    1 +
 1 file changed, 1 insertion(+)
arch/powerpc/kernel/nvram_64.c +1 -0
@@ -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 [email protected] are

queue-4.10/pstore-fix-flags-to-enable-dumps-on-powerpc.patch