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    Subject[PATCH 5.11 063/120] riscv: Correct SPARSEMEM configuration
    Date
    From: Kefeng Wang <wangkefeng.wang@huawei.com>

    commit a5406a7ff56e63376c210b06072aa0ef23473366 upstream.

    There are two issues for RV32,
    1) if use FLATMEM, it is useless to enable SPARSEMEM_STATIC.
    2) if use SPARSMEM, both SPARSEMEM_VMEMMAP and SPARSEMEM_STATIC is enabled.

    Fixes: d95f1a542c3d ("RISC-V: Implement sparsemem")
    Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
    Cc: stable@vger.kernel.org
    Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    arch/riscv/Kconfig | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    --- a/arch/riscv/Kconfig
    +++ b/arch/riscv/Kconfig
    @@ -87,7 +87,6 @@ config RISCV
    select PCI_MSI if PCI
    select RISCV_INTC
    select RISCV_TIMER if RISCV_SBI
    - select SPARSEMEM_STATIC if 32BIT
    select SPARSE_IRQ
    select SYSCTL_EXCEPTION_TRACE
    select THREAD_INFO_IN_TASK
    @@ -148,7 +147,8 @@ config ARCH_FLATMEM_ENABLE
    config ARCH_SPARSEMEM_ENABLE
    def_bool y
    depends on MMU
    - select SPARSEMEM_VMEMMAP_ENABLE
    + select SPARSEMEM_STATIC if 32BIT && SPARSMEM
    + select SPARSEMEM_VMEMMAP_ENABLE if 64BIT

    config ARCH_SELECT_MEMORY_MODEL
    def_bool ARCH_SPARSEMEM_ENABLE

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