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    Subject[PATCH 02/20] mips: lantiq: copy built-in DTB out of init section
    Date
    From: Rob Herring <robh@kernel.org>

    The existing code is buggy because built-in DTBs are in init memory.
    Fix this by using the unflatten_and_copy_device_tree function.

    This removes all accesses to FDT header data by the arch code.

    Signed-off-by: Rob Herring <robh@kernel.org>
    Cc: Ralf Baechle <ralf@linux-mips.org>
    Cc: linux-mips@linux-mips.org
    ---
    arch/mips/lantiq/prom.c | 13 +------------
    1 file changed, 1 insertion(+), 12 deletions(-)

    diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
    index 19686c5..cdea687 100644
    --- a/arch/mips/lantiq/prom.c
    +++ b/arch/mips/lantiq/prom.c
    @@ -76,18 +76,7 @@ void __init plat_mem_setup(void)

    void __init device_tree_init(void)
    {
    - unsigned long base, size;
    -
    - if (!initial_boot_params)
    - return;
    -
    - base = virt_to_phys((void *)initial_boot_params);
    - size = be32_to_cpu(initial_boot_params->totalsize);
    -
    - /* Before we do anything, lets reserve the dt blob */
    - reserve_bootmem(base, size, BOOTMEM_DEFAULT);
    -
    - unflatten_device_tree();
    + unflatten_and_copy_device_tree();
    }

    void __init prom_init(void)
    --
    1.8.3.2


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