target/linux/generic/patches-4.4/040-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch

   1 From 2a36a5c30eab9cd1c9d2d08bd27cd763325d70c5 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
   3 Date: Sat, 5 Dec 2015 02:09:43 +0100
   4 Subject: [PATCH] mtd: bcm47xxpart: limit scanned flash area on BCM47XX (MIPS)
   5  only
   6 MIME-Version: 1.0
   7 Content-Type: text/plain; charset=UTF-8
   8 Content-Transfer-Encoding: 8bit
   9
  10 We allowed using bcm47xxpart on BCM5301X arch with commit:
  11 9e3afa5f5c7 ("mtd: bcm47xxpart: allow enabling on ARCH_BCM_5301X")
  12
  13 BCM5301X devices may contain some partitions in higher memory, e.g.
  14 Netgear R8000 has board_data at 0x2600000. To detect them we should
  15 use size limit on MIPS only.
  16
  17 Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
  18 Signed-off-by: Brian Norris <computersforpeace@gmail.com>
  19 ---
  20  drivers/mtd/bcm47xxpart.c | 4 ++--
  21  1 file changed, 2 insertions(+), 2 deletions(-)
  22
  23 --- a/drivers/mtd/bcm47xxpart.c
  24 +++ b/drivers/mtd/bcm47xxpart.c
  25 @@ -118,8 +118,8 @@ static int bcm47xxpart_parse(struct mtd_
  26         /* Parse block by block looking for magics */
  27         for (offset = 0; offset <= master->size - blocksize;
  28              offset += blocksize) {
  29 -               /* Nothing more in higher memory */
  30 -               if (offset >= 0x2000000)
  31 +               /* Nothing more in higher memory on BCM47XX (MIPS) */
  32 +               if (config_enabled(CONFIG_BCM47XX) && offset >= 0x2000000)
  33                         break;
  34
  35                 if (curr_part >= BCM47XXPART_MAX_PARTS) {