riscv: sbi: Fix undefined reference to sbi_shutdown

There is no shutdown call in SBI v0.2, only set pm_power_off
when RISCV_SBI_V01 enabled to fix following build error,

riscv64-linux-ld: arch/riscv/kernel/sbi.o: in function `sbi_power_off':
sbi.c:(.text+0xe): undefined reference to `sbi_shutdown

Fixes: efca13989250 ("RISC-V: Introduce a new config for SBI v0.1")
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

diff --git a/arch/riscv/kernel/sbi.c b/arch/riscv/kernel/sbi.c
index 62b10a1..f383ef5 100644 (file)
--- a/arch/riscv/kernel/sbi.c
+++ b/arch/riscv/kernel/sbi.c
@@ -167,6 +167,11 @@ static int __sbi_rfence_v01(int fid, const unsigned long *hart_mask,
 
        return result;
 }
+
+static void sbi_set_power_off(void)
+{
+       pm_power_off = sbi_shutdown;
+}
 #else
 static void __sbi_set_timer_v01(uint64_t stime_value)
 {
@@ -191,6 +196,8 @@ static int __sbi_rfence_v01(int fid, const unsigned long *hart_mask,
 
        return 0;
 }
+
+static void sbi_set_power_off(void) {}
 #endif /* CONFIG_RISCV_SBI_V01 */
 
 static void __sbi_set_timer_v02(uint64_t stime_value)
@@ -540,16 +547,12 @@ static inline long sbi_get_firmware_version(void)
        return __sbi_base_ecall(SBI_EXT_BASE_GET_IMP_VERSION);
 }
 
-static void sbi_power_off(void)
-{
-       sbi_shutdown();
-}
 
 int __init sbi_init(void)
 {
        int ret;
 
-       pm_power_off = sbi_power_off;
+       sbi_set_power_off();
        ret = sbi_get_spec_version();
        if (ret > 0)
                sbi_spec_version = ret;