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    SubjectRe: [PATCH] c/r: prctl: fix build error for no-MMU case
    On Mon, Sep 24, 2012 at 05:41:32PM -0400, Mark Salter wrote:
    > Commit 1ad75b9e1 added some address checking to prctl_set_mm()
    > used by checkpoint-restore. This causes a build error for no-MMU
    > systems:
    > kernel/sys.c: In function 'prctl_set_mm':
    > kernel/sys.c:1868:34: error: 'mmap_min_addr' undeclared (first use in this function)
    > The test for mmap_min_addr doesn't make a lot of sense for no-MMU
    > code as noted in commit 6e1415467. This patch defines mmap_min_addr
    > as 0UL in the no-MMU case so that the compiler will optimize away
    > tests for "addr < mmap_min_addr".
    > Signed-off-by: Mark Salter <>

    Thanks, Mark! I should add that this mmap_min_addr currently
    referenced in other parts of code only under CONFIG_MMU so this
    definition in header should not break anything.

    Reviewed-by: Cyrill Gorcunov <>

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      Last update: 2012-09-25 00:41    [W:0.028 / U:7.160 seconds]
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