From 527b5baeada26f9660722b4a498d3855d90f276c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 26 Dec 2016 00:50:06 -0500 Subject: [PATCH] powerpc: switch to extable.h Signed-off-by: Al Viro --- arch/powerpc/include/asm/extable.h | 29 +++++++++++++++++++++++++++++ arch/powerpc/include/asm/uaccess.h | 26 +------------------------- 2 files changed, 30 insertions(+), 25 deletions(-) create mode 100644 arch/powerpc/include/asm/extable.h diff --git a/arch/powerpc/include/asm/extable.h b/arch/powerpc/include/asm/extable.h new file mode 100644 index 000000000000..07cc45cd86d9 --- /dev/null +++ b/arch/powerpc/include/asm/extable.h @@ -0,0 +1,29 @@ +#ifndef _ARCH_POWERPC_EXTABLE_H +#define _ARCH_POWERPC_EXTABLE_H + +/* + * The exception table consists of pairs of relative addresses: the first is + * the address of an instruction that is allowed to fault, and the second is + * the address at which the program should continue. No registers are + * modified, so it is entirely up to the continuation code to figure out what + * to do. + * + * All the routines below use bits of fixup code that are out of line with the + * main instruction path. This means when everything is well, we don't even + * have to jump over them. Further, they do not intrude on our cache or tlb + * entries. + */ + +#define ARCH_HAS_RELATIVE_EXTABLE + +struct exception_table_entry { + int insn; + int fixup; +}; + +static inline unsigned long extable_fixup(const struct exception_table_entry *x) +{ + return (unsigned long)&x->fixup + x->fixup; +} + +#endif diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h index 3904040a3542..b19883f6273c 100644 --- a/arch/powerpc/include/asm/uaccess.h +++ b/arch/powerpc/include/asm/uaccess.h @@ -5,6 +5,7 @@ #include #include #include +#include /* * The fs value determines whether argument validity checking should be @@ -56,31 +57,6 @@ __access_ok((__force unsigned long)(addr), (size), get_fs())) /* - * The exception table consists of pairs of relative addresses: the first is - * the address of an instruction that is allowed to fault, and the second is - * the address at which the program should continue. No registers are - * modified, so it is entirely up to the continuation code to figure out what - * to do. - * - * All the routines below use bits of fixup code that are out of line with the - * main instruction path. This means when everything is well, we don't even - * have to jump over them. Further, they do not intrude on our cache or tlb - * entries. - */ - -#define ARCH_HAS_RELATIVE_EXTABLE - -struct exception_table_entry { - int insn; - int fixup; -}; - -static inline unsigned long extable_fixup(const struct exception_table_entry *x) -{ - return (unsigned long)&x->fixup + x->fixup; -} - -/* * These are the main single-value transfer routines. They automatically * use the right size if we just have the right pointer type. * -- 2.11.0