diff options
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/include/asm/uaccess.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h index b67d1c616ec3..264e52fb62b1 100644 --- a/arch/riscv/include/asm/uaccess.h +++ b/arch/riscv/include/asm/uaccess.h @@ -486,6 +486,26 @@ unsigned long __must_check clear_user(void __user *to, unsigned long n) __ret; \ }) +#define HAVE_GET_KERNEL_NOFAULT + +#define __get_kernel_nofault(dst, src, type, err_label) \ +do { \ + long __kr_err; \ + \ + __get_user_nocheck(*((type *)(dst)), (type *)(src), __kr_err); \ + if (unlikely(__kr_err)) \ + goto err_label; \ +} while (0) + +#define __put_kernel_nofault(dst, src, type, err_label) \ +do { \ + long __kr_err; \ + \ + __put_user_nocheck(*((type *)(dst)), (type *)(src), __kr_err); \ + if (unlikely(__kr_err)) \ + goto err_label; \ +} while (0) + #else /* CONFIG_MMU */ #include <asm-generic/uaccess.h> #endif /* CONFIG_MMU */ |