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    Subject[PATCH v8 1/4] RISC-V: Change suspend_save_csrs and suspend_restore_csrs to public function
    Date
    Currently suspend_save_csrs() and suspend_restore_csrs() functions are
    statically defined in the suspend.c. Change the function's attribute
    to public so that the functions can be used by hibernation as well.

    Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
    Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
    Reviewed-by: Mason Huo <mason.huo@starfivetech.com>
    Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
    Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
    ---
    arch/riscv/include/asm/suspend.h | 3 +++
    arch/riscv/kernel/suspend.c | 4 ++--
    2 files changed, 5 insertions(+), 2 deletions(-)

    diff --git a/arch/riscv/include/asm/suspend.h b/arch/riscv/include/asm/suspend.h
    index 8be391c2aecb..67e047445662 100644
    --- a/arch/riscv/include/asm/suspend.h
    +++ b/arch/riscv/include/asm/suspend.h
    @@ -33,4 +33,7 @@ int cpu_suspend(unsigned long arg,
    /* Low-level CPU resume entry function */
    int __cpu_resume_enter(unsigned long hartid, unsigned long context);

    +/* Used to save and restore the CSRs */
    +void suspend_save_csrs(struct suspend_context *context);
    +void suspend_restore_csrs(struct suspend_context *context);
    #endif
    diff --git a/arch/riscv/kernel/suspend.c b/arch/riscv/kernel/suspend.c
    index 9ba24fb8cc93..3c89b8ec69c4 100644
    --- a/arch/riscv/kernel/suspend.c
    +++ b/arch/riscv/kernel/suspend.c
    @@ -8,7 +8,7 @@
    #include <asm/csr.h>
    #include <asm/suspend.h>

    -static void suspend_save_csrs(struct suspend_context *context)
    +void suspend_save_csrs(struct suspend_context *context)
    {
    context->scratch = csr_read(CSR_SCRATCH);
    context->tvec = csr_read(CSR_TVEC);
    @@ -29,7 +29,7 @@ static void suspend_save_csrs(struct suspend_context *context)
    #endif
    }

    -static void suspend_restore_csrs(struct suspend_context *context)
    +void suspend_restore_csrs(struct suspend_context *context)
    {
    csr_write(CSR_SCRATCH, context->scratch);
    csr_write(CSR_TVEC, context->tvec);
    --
    2.34.1
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