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    Subject[PATCH AUTOSEL 5.5 444/542] powerpc/ptdump: Fix W+X verification call in mark_rodata_ro()
    Date
    From: Christophe Leroy <christophe.leroy@c-s.fr>

    [ Upstream commit e26ad936dd89d79f66c2b567f700e0c2a7103070 ]

    ptdump_check_wx() also have to be called when pages are mapped
    by blocks.

    Fixes: 453d87f6a8ae ("powerpc/mm: Warn if W+X pages found on boot")
    Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
    Link: https://lore.kernel.org/r/37517da8310f4457f28921a4edb88fb21d27b62a.1578989531.git.christophe.leroy@c-s.fr
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/powerpc/mm/pgtable_32.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
    index 73b84166d06a6..5fb90edd865e6 100644
    --- a/arch/powerpc/mm/pgtable_32.c
    +++ b/arch/powerpc/mm/pgtable_32.c
    @@ -218,6 +218,7 @@ void mark_rodata_ro(void)

    if (v_block_mapped((unsigned long)_sinittext)) {
    mmu_mark_rodata_ro();
    + ptdump_check_wx();
    return;
    }

    --
    2.20.1
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