kernel: add bcm47xxpart patches sent for 4.5 merge window

[openwrt.git] / target / linux / generic / patches-4.3 / 143-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch

diff --git a/target/linux/generic/patches-4.3/143-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch b/target/linux/generic/patches-4.3/143-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch
new file mode 100644 (file)
index 0000000..aa31514
--- /dev/null
+++ b/target/linux/generic/patches-4.3/143-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch
@@ -0,0 +1,33 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Sat, 5 Dec 2015 02:03:32 +0100
+Subject: [PATCH] mtd: bcm47xxpart: limit scanned flash area on BCM47XX (MIPS)
+ only
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+We allowed using bcm47xxpart on BCM5301X arch with commit:
+9e3afa5f5c7 ("mtd: bcm47xxpart: allow enabling on ARCH_BCM_5301X")
+
+BCM5301X devices may contain some partitions in higher memory, e.g.
+Netgear R8000 has board_data at 0x2600000. To detect them we should
+use size limit on MIPS only.
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+---
+ drivers/mtd/bcm47xxpart.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/mtd/bcm47xxpart.c
++++ b/drivers/mtd/bcm47xxpart.c
+@@ -118,8 +118,8 @@ static int bcm47xxpart_parse(struct mtd_info *master,
+       /* Parse block by block looking for magics */
+       for (offset = 0; offset <= master->size - blocksize;
+            offset += blocksize) {
+-              /* Nothing more in higher memory */
+-              if (offset >= 0x2000000)
++              /* Nothing more in higher memory on BCM47XX (MIPS) */
++              if (config_enabled(CONFIG_BCM47XX) && offset >= 0x2000000)
+                       break;
+ 
+               if (curr_part >= BCM47XXPART_MAX_PARTS) {