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authorHelge Deller <deller@gmx.de>2016-04-08 21:36:06 +0200
committerHelge Deller <deller@gmx.de>2016-04-08 22:14:26 +0200
commitcb910c1714cc198fa868695c276a2bff0f8900e7 (patch)
treef790a5422d9d06a96ba229a98b7c6a6798c16159
parent2ef4dfd9d9f288943e249b78365a69e3ea3ec072 (diff)
downloadlinux-sh-cb910c1714cc198fa868695c276a2bff0f8900e7.tar.gz
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>
-rw-r--r--arch/parisc/include/asm/uaccess.h10
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