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    Subject[ 38/44] ARM: mxs: Remove MMAP_MIN_ADDR setting from mxs_defconfig
    Date
    From: Greg KH <gregkh@linuxfoundation.org>

    3.0-stable review patch. If anyone has any objections, please let me know.

    ------------------

    From: Marek Vasut <marex@denx.de>

    commit 3bed491c8d28329e34f8a31e3fe64d03f3a350f1 upstream.

    The CONFIG_DEFAULT_MMAP_MIN_ADDR was set to 65536 in mxs_defconfig,
    this caused severe breakage of userland applications since the upper
    limit for ARM is 32768. By default CONFIG_DEFAULT_MMAP_MIN_ADDR is
    set to 4096 and can also be changed via /proc/sys/vm/mmap_min_addr
    if needed.

    Quoting Russell King [1]:

    "4096 is also fine for ARM too. There's not much point in having
    defconfigs change it - that would just be pure noise in the config
    files."

    the CONFIG_DEFAULT_MMAP_MIN_ADDR can be removed from the defconfig
    altogether.

    This problem was introduced by commit cde7c41 (ARM: configs: add
    defconfig for mach-mxs).

    [1] http://marc.info/?l=linux-arm-kernel&m=134401593807820&w=2

    Signed-off-by: Marek Vasut <marex@denx.de>
    Cc: Russell King <linux@arm.linux.org.uk>
    Cc: Wolfgang Denk <wd@denx.de>
    Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    arch/arm/configs/mxs_defconfig | 1 -
    1 file changed, 1 deletion(-)

    --- a/arch/arm/configs/mxs_defconfig
    +++ b/arch/arm/configs/mxs_defconfig
    @@ -29,7 +29,6 @@ CONFIG_NO_HZ=y
    CONFIG_HIGH_RES_TIMERS=y
    CONFIG_PREEMPT_VOLUNTARY=y
    CONFIG_AEABI=y
    -CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
    CONFIG_AUTO_ZRELADDR=y
    CONFIG_FPE_NWFPE=y
    CONFIG_NET=y



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