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    Subject[PATCH 5.19 137/155] arm64/kexec: Fix missing extra range for crashkres_low.
    Date
    From: Levi Yun <ppbuk5246@gmail.com>

    commit 4831be702b95047c89b3fa5728d07091e9e9f7c9 upstream.

    Like crashk_res, Calling crash_exclude_mem_range function with
    crashk_low_res area would need extra crash_mem range too.

    Add one more extra cmem slot in case of crashk_low_res is used.

    Signed-off-by: Levi Yun <ppbuk5246@gmail.com>
    Fixes: 944a45abfabc ("arm64: kdump: Reimplement crashkernel=X")
    Cc: <stable@vger.kernel.org> # 5.19.x
    Acked-by: Baoquan He <bhe@redhat.com>
    Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
    Link: https://lore.kernel.org/r/20220831103913.12661-1-ppbuk5246@gmail.com
    Signed-off-by: Will Deacon <will@kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    arch/arm64/kernel/machine_kexec_file.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/arch/arm64/kernel/machine_kexec_file.c
    +++ b/arch/arm64/kernel/machine_kexec_file.c
    @@ -47,7 +47,7 @@ static int prepare_elf_headers(void **ad
    u64 i;
    phys_addr_t start, end;

    - nr_ranges = 1; /* for exclusion of crashkernel region */
    + nr_ranges = 2; /* for exclusion of crashkernel region */
    for_each_mem_range(i, &start, &end)
    nr_ranges++;


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