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| author | Helge Deller <deller@gmx.de> | 2016-04-08 21:36:06 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2016-04-08 22:14:26 +0200 |
| commit | cb910c1714cc198fa868695c276a2bff0f8900e7 (patch) | |
| tree | f790a5422d9d06a96ba229a98b7c6a6798c16159 /arch/parisc | |
| parent | 2ef4dfd9d9f288943e249b78365a69e3ea3ec072 (diff) | |
| download | linux-cb910c1714cc198fa868695c276a2bff0f8900e7.tar.gz linux-cb910c1714cc198fa868695c276a2bff0f8900e7.tar.bz2 linux-cb910c1714cc198fa868695c276a2bff0f8900e7.zip | |
parisc: Update comment regarding relative extable support
Update the comment to reflect the changes of commit 0de7985 (parisc: Use
generic extable search and sort routines).
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/include/asm/uaccess.h | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h index 6f893d29f1b2..7955e43f3f3f 100644 --- a/arch/parisc/include/asm/uaccess.h +++ b/arch/parisc/include/asm/uaccess.h @@ -44,20 +44,18 @@ static inline long access_ok(int type, const void __user * addr, #define LDD_USER(ptr) BUILD_BUG() #define STD_KERNEL(x, ptr) __put_kernel_asm64(x, ptr) #define STD_USER(x, ptr) __put_user_asm64(x, ptr) -#define ASM_WORD_INSN ".word\t" #else #define LDD_KERNEL(ptr) __get_kernel_asm("ldd", ptr) #define LDD_USER(ptr) __get_user_asm("ldd", ptr) #define STD_KERNEL(x, ptr) __put_kernel_asm("std", x, ptr) #define STD_USER(x, ptr) __put_user_asm("std", x, ptr) -#define ASM_WORD_INSN ".dword\t" #endif /* - * The exception table contains two values: the first is an address - * for an instruction that is allowed to fault, and the second is - * the address to the fixup routine. Even on a 64bit kernel we could - * use a 32bit (unsigned int) address here. + * The exception table contains two values: the first is the relative offset to + * the address of the instruction that is allowed to fault, and the second is + * the relative offset to the address of the fixup routine. Since relative + * addresses are used, 32bit values are sufficient even on 64bit kernel. */ #define ARCH_HAS_RELATIVE_EXTABLE |