openwrt/target/linux/brcm63xx/patches-4.4/000-4.5-06-mtd-ofpart-drop-of_node-partition-parser-data.patch
Jonas Gorski 0ddae04c22 brcm63xx: backport mtd of node changes from upstream
Should fix parser data containing uninitialized values for of probed
physmap flashes, which could break e.g. the redboot parser.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2016-08-13 15:49:35 +02:00

62 lines
2.0 KiB
Diff

From e270bca531b40cd0a143176eb093d173b9c6f418 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Fri, 30 Oct 2015 20:33:29 -0700
Subject: [PATCH] mtd: ofpart: drop 'of_node' partition parser data
This field is no longer used anywhere, as it is superseded by
mtd->dev.of_node.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
drivers/mtd/ofpart.c | 14 ++++----------
include/linux/mtd/partitions.h | 4 ----
2 files changed, 4 insertions(+), 14 deletions(-)
--- a/drivers/mtd/ofpart.c
+++ b/drivers/mtd/ofpart.c
@@ -37,11 +37,8 @@ static int parse_ofpart_partitions(struc
bool dedicated = true;
- /*
- * of_node can be provided through auxiliary parser data or (preferred)
- * by assigning the master device node
- */
- mtd_node = data && data->of_node ? data->of_node : mtd_get_of_node(master);
+ /* Pull of_node from the master device node */
+ mtd_node = mtd_get_of_node(master);
if (!mtd_node)
return 0;
@@ -158,11 +155,8 @@ static int parse_ofoldpart_partitions(st
} *part;
const char *names;
- /*
- * of_node can be provided through auxiliary parser data or (preferred)
- * by assigning the master device node
- */
- dp = data && data->of_node ? data->of_node : mtd_get_of_node(master);
+ /* Pull of_node from the master device node */
+ dp = mtd_get_of_node(master);
if (!dp)
return 0;
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -56,13 +56,9 @@ struct device_node;
/**
* struct mtd_part_parser_data - used to pass data to MTD partition parsers.
* @origin: for RedBoot, start address of MTD device
- * @of_node: for OF parsers, device node containing partitioning information.
- * This field is deprecated, as the device node should simply be
- * assigned to the master struct device.
*/
struct mtd_part_parser_data {
unsigned long origin;
- struct device_node *of_node;
};