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    Subject[PATCH 5/7] powerpc: Remove savemaxmem parameter setup
    From: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>

    saved_max_pfn is used to know the amount of memory that the previous
    kernel used. And for powerpc, we set saved_max_pfn by passing the
    kernel commandline parameter "savemaxmem=".

    The only user of saved_max_pfn in powerpc is read_oldmem interface.
    Since we have removed read_oldmem, we don't need this parameter anymore.

    Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Paul Mackerras <paulus@samba.org>
    ---
    arch/powerpc/kernel/crash_dump.c | 10 ----------
    1 files changed, 0 insertions(+), 10 deletions(-)

    diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c
    index 9ec3fe1..779a78c 100644
    --- a/arch/powerpc/kernel/crash_dump.c
    +++ b/arch/powerpc/kernel/crash_dump.c
    @@ -69,16 +69,6 @@ void __init setup_kdump_trampoline(void)
    }
    #endif /* CONFIG_NONSTATIC_KERNEL */

    -static int __init parse_savemaxmem(char *p)
    -{
    - if (p)
    - saved_max_pfn = (memparse(p, &p) >> PAGE_SHIFT) - 1;
    -
    - return 1;
    -}
    -__setup("savemaxmem=", parse_savemaxmem);
    -
    -
    static size_t copy_oldmem_vaddr(void *vaddr, char *buf, size_t csize,
    unsigned long offset, int userbuf)
    {
    --
    1.7.1

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