From e7467dc6947d7074417aa4cda44b851010fd0795 Mon Sep 17 00:00:00 2001
From: Hari Bathini <hbathini@linux.vnet.ibm.com>
Date: Mon, 22 May 2017 15:04:47 +0530
Subject: [PATCH] powerpc/fadump: Update comment about offset where fadump is
 reserved

References: bsc#1051137
Patch-mainline: v4.13-rc1
Git-commit: e7467dc6947d7074417aa4cda44b851010fd0795

With commit f6e6bedb7731 ("powerpc/fadump: Reserve memory at an offset
closer to bottom of RAM"), memory for fadump is no longer reserved at
the top of RAM. But there are still a few places which say so. Change
them appropriately.

Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
 Documentation/powerpc/firmware-assisted-dump.txt | 4 ++--
 arch/powerpc/kernel/fadump.c                     | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Documentation/powerpc/firmware-assisted-dump.txt b/Documentation/powerpc/firmware-assisted-dump.txt
index 9cabaf8a207e..bdd344aa18d9 100644
--- a/Documentation/powerpc/firmware-assisted-dump.txt
+++ b/Documentation/powerpc/firmware-assisted-dump.txt
@@ -61,8 +61,8 @@ as follows:
          boot successfully. For syntax of crashkernel= parameter,
          refer to Documentation/kdump/kdump.txt. If any offset is
          provided in crashkernel= parameter, it will be ignored
-         as fadump reserves memory at end of RAM for boot memory
-         dump preservation in case of a crash.
+         as fadump uses a predefined offset to reserve memory
+         for boot memory dump preservation in case of a crash.
 
 -- After the low memory (boot memory) area has been saved, the
    firmware will reset PCI and other hardware state.  It will
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index 1bdbe0b257e0..1ec6ea67159c 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -217,8 +217,8 @@ static inline unsigned long fadump_calculate_reserve_size(void)
 
 	/*
 	 * Check if the size is specified through crashkernel= cmdline
-	 * option. If yes, then use that but ignore base as fadump
-	 * reserves memory at end of RAM.
+	 * option. If yes, then use that but ignore base as fadump reserves
+	 * memory at a predefined offset.
 	 */
 	ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(),
 				&size, &base);
-- 
2.10.2