diff options
| -rw-r--r-- | arch/riscv/include/asm/vdso.h | 2 | ||||
| -rw-r--r-- | arch/riscv/kernel/sys_riscv.c | 12 |
2 files changed, 10 insertions, 4 deletions
diff --git a/arch/riscv/include/asm/vdso.h b/arch/riscv/include/asm/vdso.h index 541544d64c33..ec6180a4b55d 100644 --- a/arch/riscv/include/asm/vdso.h +++ b/arch/riscv/include/asm/vdso.h @@ -38,8 +38,6 @@ struct vdso_data { (void __user *)((unsigned long)(base) + __vdso_##name); \ }) -#ifdef CONFIG_SMP asmlinkage long sys_riscv_flush_icache(uintptr_t, uintptr_t, uintptr_t); -#endif #endif /* _ASM_RISCV_VDSO_H */ diff --git a/arch/riscv/kernel/sys_riscv.c b/arch/riscv/kernel/sys_riscv.c index f7181ed8aafc..568026ccf6e8 100644 --- a/arch/riscv/kernel/sys_riscv.c +++ b/arch/riscv/kernel/sys_riscv.c @@ -48,7 +48,6 @@ SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len, } #endif /* !CONFIG_64BIT */ -#ifdef CONFIG_SMP /* * Allows the instruction cache to be flushed from userspace. Despite RISC-V * having a direct 'fence.i' instruction available to userspace (which we @@ -66,15 +65,24 @@ SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len, SYSCALL_DEFINE3(riscv_flush_icache, uintptr_t, start, uintptr_t, end, uintptr_t, flags) { +#ifdef CONFIG_SMP struct mm_struct *mm = current->mm; bool local = (flags & SYS_RISCV_FLUSH_ICACHE_LOCAL) != 0; +#endif /* Check the reserved flags. */ if (unlikely(flags & ~SYS_RISCV_FLUSH_ICACHE_ALL)) return -EINVAL; + /* + * Without CONFIG_SMP flush_icache_mm is a just a flush_icache_all(), + * which generates unused variable warnings all over this function. + */ +#ifdef CONFIG_SMP flush_icache_mm(mm, local); +#else + flush_icache_all(); +#endif return 0; } -#endif |