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include/asm-x86/uaccess_32.h: checkpatch cleanups - formatting only 

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Joe Perches 2008-03-23 01:03:48 -07:00 committed by Ingo Molnar
parent 2d86e637d1
commit b1fcec7f22
1 changed files with 183 additions and 125 deletions
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166
include/asm-x86/uaccess_32.h
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@ -43,7 +43,9 @@ extern struct movsl_mask {
} ____cacheline_aligned_in_smp movsl_mask; } ____cacheline_aligned_in_smp movsl_mask;
#endif #endif
#define __addr_ok(addr) ((unsigned long __force)(addr) < (current_thread_info()->addr_limit.seg)) #define __addr_ok(addr) \
((unsigned long __force)(addr) < \
(current_thread_info()->addr_limit.seg))
/* /*
* Test whether a block of memory is a valid user space address. * Test whether a block of memory is a valid user space address.
@ -54,13 +56,16 @@ extern struct movsl_mask {
* *
* This needs 33-bit arithmetic. We have a carry... * This needs 33-bit arithmetic. We have a carry...
*/ */
#define __range_ok(addr,size) ({ \ #define __range_ok(addr, size) \
({ \
unsigned long flag, roksum; \ unsigned long flag, roksum; \
__chk_user_ptr(addr); \ __chk_user_ptr(addr); \
asm("addl %3,%1 ; sbbl %0,%0; cmpl %1,%4; sbbl $0,%0" \ asm("addl %3,%1 ; sbbl %0,%0; cmpl %1,%4; sbbl $0,%0" \
:"=&r" (flag), "=r" (roksum) \ :"=&r" (flag), "=r" (roksum) \
:"1" (addr),"g" ((int)(size)),"rm" (current_thread_info()->addr_limit.seg)); \ :"1" (addr), "g" ((int)(size)), \
flag; }) "rm" (current_thread_info()->addr_limit.seg)); \
flag; \
})
/** /**
* access_ok: - Checks if a user space pointer is valid * access_ok: - Checks if a user space pointer is valid
@ -96,8 +101,7 @@ extern struct movsl_mask {
* on our cache or tlb entries. * on our cache or tlb entries.
*/ */
struct exception_table_entry struct exception_table_entry {
{
unsigned long insn, fixup; unsigned long insn, fixup;
}; };
@ -123,12 +127,14 @@ extern void __get_user_2(void);
extern void __get_user_4(void); extern void __get_user_4(void);
#define __get_user_x(size, ret, x, ptr) \ #define __get_user_x(size, ret, x, ptr) \
__asm__ __volatile__("call __get_user_" #size \ asm volatile("call __get_user_" #size \
:"=a" (ret),"=d" (x) \ :"=a" (ret),"=d" (x) \
:"0" (ptr)) :"0" (ptr))
/* Careful: we have to cast the result to the type of the pointer for sign reasons */ /* Careful: we have to cast the result to the type of the pointer
* for sign reasons */
/** /**
* get_user: - Get a simple variable from user space. * get_user: - Get a simple variable from user space.
* @x: Variable to store result. * @x: Variable to store result.
@ -147,14 +153,23 @@ extern void __get_user_4(void);
* On error, the variable @x is set to zero. * On error, the variable @x is set to zero.
*/ */
#define get_user(x, ptr) \ #define get_user(x, ptr) \
({ int __ret_gu; \ ({ \
int __ret_gu; \
unsigned long __val_gu; \ unsigned long __val_gu; \
__chk_user_ptr(ptr); \ __chk_user_ptr(ptr); \
switch (sizeof(*(ptr))) { \ switch (sizeof(*(ptr))) { \
case 1: __get_user_x(1,__ret_gu,__val_gu,ptr); break; \ case 1: \
case 2: __get_user_x(2,__ret_gu,__val_gu,ptr); break; \ __get_user_x(1, __ret_gu, __val_gu, ptr); \
case 4: __get_user_x(4,__ret_gu,__val_gu,ptr); break; \ break; \
default: __get_user_x(X,__ret_gu,__val_gu,ptr); break; \ case 2: \
__get_user_x(2, __ret_gu, __val_gu, ptr); \
break; \
case 4: \
__get_user_x(4, __ret_gu, __val_gu, ptr); \
break; \
default: \
__get_user_x(X, __ret_gu, __val_gu, ptr); \
break; \
} \ } \
(x) = (__typeof__(*(ptr)))__val_gu; \ (x) = (__typeof__(*(ptr)))__val_gu; \
__ret_gu; \ __ret_gu; \
@ -171,11 +186,25 @@ extern void __put_user_2(void);
extern void __put_user_4(void); extern void __put_user_4(void);
extern void __put_user_8(void); extern void __put_user_8(void);
#define __put_user_1(x, ptr) __asm__ __volatile__("call __put_user_1":"=a" (__ret_pu):"0" ((typeof(*(ptr)))(x)), "c" (ptr)) #define __put_user_1(x, ptr) \
#define __put_user_2(x, ptr) __asm__ __volatile__("call __put_user_2":"=a" (__ret_pu):"0" ((typeof(*(ptr)))(x)), "c" (ptr)) asm volatile("call __put_user_1" : "=a" (__ret_pu) \
#define __put_user_4(x, ptr) __asm__ __volatile__("call __put_user_4":"=a" (__ret_pu):"0" ((typeof(*(ptr)))(x)), "c" (ptr)) : "0" ((typeof(*(ptr)))(x)), "c" (ptr))
#define __put_user_8(x, ptr) __asm__ __volatile__("call __put_user_8":"=a" (__ret_pu):"A" ((typeof(*(ptr)))(x)), "c" (ptr))
#define __put_user_X(x, ptr) __asm__ __volatile__("call __put_user_X":"=a" (__ret_pu):"c" (ptr)) #define __put_user_2(x, ptr) \
asm volatile("call __put_user_2" : "=a" (__ret_pu) \
: "0" ((typeof(*(ptr)))(x)), "c" (ptr))
#define __put_user_4(x, ptr) \
asm volatile("call __put_user_4" : "=a" (__ret_pu) \
: "0" ((typeof(*(ptr)))(x)), "c" (ptr))
#define __put_user_8(x, ptr) \
asm volatile("call __put_user_8" : "=a" (__ret_pu) \
: "A" ((typeof(*(ptr)))(x)), "c" (ptr))
#define __put_user_X(x, ptr) \
asm volatile("call __put_user_X" : "=a" (__ret_pu) \
: "c" (ptr))
/** /**
* put_user: - Write a simple value into user space. * put_user: - Write a simple value into user space.
@ -196,16 +225,27 @@ extern void __put_user_8(void);
#ifdef CONFIG_X86_WP_WORKS_OK #ifdef CONFIG_X86_WP_WORKS_OK
#define put_user(x, ptr) \ #define put_user(x, ptr) \
({ int __ret_pu; \ ({ \
int __ret_pu; \
__typeof__(*(ptr)) __pu_val; \ __typeof__(*(ptr)) __pu_val; \
__chk_user_ptr(ptr); \ __chk_user_ptr(ptr); \
__pu_val = x; \ __pu_val = x; \
switch (sizeof(*(ptr))) { \ switch (sizeof(*(ptr))) { \
case 1: __put_user_1(__pu_val, ptr); break; \ case 1: \
case 2: __put_user_2(__pu_val, ptr); break; \ __put_user_1(__pu_val, ptr); \
case 4: __put_user_4(__pu_val, ptr); break; \ break; \
case 8: __put_user_8(__pu_val, ptr); break; \ case 2: \
default:__put_user_X(__pu_val, ptr); break; \ __put_user_2(__pu_val, ptr); \
break; \
case 4: \
__put_user_4(__pu_val, ptr); \
break; \
case 8: \
__put_user_8(__pu_val, ptr); \
break; \
default: \
__put_user_X(__pu_val, ptr); \
break; \
} \ } \
__ret_pu; \ __ret_pu; \
}) })
@ -280,8 +320,7 @@ extern void __put_user_8(void);
#define __put_user_u64(x, addr, err) \ #define __put_user_u64(x, addr, err) \
__asm__ __volatile__( \ asm volatile("1: movl %%eax,0(%2)\n" \
"1: movl %%eax,0(%2)\n" \
"2: movl %%edx,4(%2)\n" \ "2: movl %%edx,4(%2)\n" \
"3:\n" \ "3:\n" \
".section .fixup,\"ax\"\n" \ ".section .fixup,\"ax\"\n" \
@ -300,11 +339,20 @@ do { \
retval = 0; \ retval = 0; \
__chk_user_ptr(ptr); \ __chk_user_ptr(ptr); \
switch (size) { \ switch (size) { \
case 1: __put_user_asm(x,ptr,retval,"b","b","iq",errret);break; \ case 1: \
case 2: __put_user_asm(x,ptr,retval,"w","w","ir",errret);break; \ __put_user_asm(x, ptr, retval, "b", "b", "iq", errret); \
case 4: __put_user_asm(x,ptr,retval,"l","","ir",errret); break; \ break; \
case 8: __put_user_u64((__typeof__(*ptr))(x),ptr,retval); break;\ case 2: \
default: __put_user_bad(); \ __put_user_asm(x, ptr, retval, "w", "w", "ir", errret); \
break; \
case 4: \
__put_user_asm(x, ptr, retval, "l", "", "ir", errret); \
break; \
case 8: \
__put_user_u64((__typeof__(*ptr))(x), ptr, retval); \
break; \
default: \
__put_user_bad(); \
} \ } \
} while (0) } while (0)
@ -329,8 +377,7 @@ struct __large_struct { unsigned long buf[100]; };
* aliasing issues. * aliasing issues.
*/ */
#define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \ #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \
__asm__ __volatile__( \ asm volatile("1: mov"itype" %"rtype"1,%2\n" \
"1: mov"itype" %"rtype"1,%2\n" \
"2:\n" \ "2:\n" \
".section .fixup,\"ax\"\n" \ ".section .fixup,\"ax\"\n" \
"3: movl %3,%0\n" \ "3: movl %3,%0\n" \
@ -357,16 +404,22 @@ do { \
retval = 0; \ retval = 0; \
__chk_user_ptr(ptr); \ __chk_user_ptr(ptr); \
switch (size) { \ switch (size) { \
case 1: __get_user_asm(x,ptr,retval,"b","b","=q",errret);break; \ case 1: \
case 2: __get_user_asm(x,ptr,retval,"w","w","=r",errret);break; \ __get_user_asm(x, ptr, retval, "b", "b", "=q", errret); \
case 4: __get_user_asm(x,ptr,retval,"l","","=r",errret);break; \ break; \
default: (x) = __get_user_bad(); \ case 2: \
__get_user_asm(x, ptr, retval, "w", "w", "=r", errret); \
break; \
case 4: \
__get_user_asm(x, ptr, retval, "l", "", "=r", errret); \
break; \
default: \
(x) = __get_user_bad(); \
} \ } \
} while (0) } while (0)
#define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \ #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \
__asm__ __volatile__( \ asm volatile("1: mov"itype" %2,%"rtype"1\n" \
"1: mov"itype" %2,%"rtype"1\n" \
"2:\n" \ "2:\n" \
".section .fixup,\"ax\"\n" \ ".section .fixup,\"ax\"\n" \
"3: movl %3,%0\n" \ "3: movl %3,%0\n" \
@ -378,16 +431,16 @@ do { \
: "m" (__m(addr)), "i" (errret), "0" (err)) : "m" (__m(addr)), "i" (errret), "0" (err))
unsigned long __must_check __copy_to_user_ll(void __user *to, unsigned long __must_check __copy_to_user_ll
const void *from, unsigned long n); (void __user *to, const void *from, unsigned long n);
unsigned long __must_check __copy_from_user_ll(void *to, unsigned long __must_check __copy_from_user_ll
const void __user *from, unsigned long n); (void *to, const void __user *from, unsigned long n);
unsigned long __must_check __copy_from_user_ll_nozero(void *to, unsigned long __must_check __copy_from_user_ll_nozero
const void __user *from, unsigned long n); (void *to, const void __user *from, unsigned long n);
unsigned long __must_check __copy_from_user_ll_nocache(void *to, unsigned long __must_check __copy_from_user_ll_nocache
const void __user *from, unsigned long n); (void *to, const void __user *from, unsigned long n);
unsigned long __must_check __copy_from_user_ll_nocache_nozero(void *to, unsigned long __must_check __copy_from_user_ll_nocache_nozero
const void __user *from, unsigned long n); (void *to, const void __user *from, unsigned long n);
/** /**
* __copy_to_user_inatomic: - Copy a block of data into user space, with less checking. * __copy_to_user_inatomic: - Copy a block of data into user space, with less checking.
@ -416,13 +469,16 @@ __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n)
switch (n) { switch (n) {
case 1: case 1:
__put_user_size(*(u8 *)from, (u8 __user *)to, 1, ret, 1); __put_user_size(*(u8 *)from, (u8 __user *)to,
1, ret, 1);
return ret; return ret;
case 2: case 2:
__put_user_size(*(u16 *)from, (u16 __user *)to, 2, ret, 2); __put_user_size(*(u16 *)from, (u16 __user *)to,
2, ret, 2);
return ret; return ret;
case 4: case 4:
__put_user_size(*(u32 *)from, (u32 __user *)to, 4, ret, 4); __put_user_size(*(u32 *)from, (u32 __user *)to,
4, ret, 4);
return ret; return ret;
} }
} }
@ -545,7 +601,8 @@ static __always_inline unsigned long __copy_from_user_nocache(void *to,
} }
static __always_inline unsigned long static __always_inline unsigned long
__copy_from_user_inatomic_nocache(void *to, const void __user *from, unsigned long n) __copy_from_user_inatomic_nocache(void *to, const void __user *from,
unsigned long n)
{ {
return __copy_from_user_ll_nocache_nozero(to, from, n); return __copy_from_user_ll_nocache_nozero(to, from, n);
} }
@ -553,7 +610,8 @@ __copy_from_user_inatomic_nocache(void *to, const void __user *from, unsigned lo
unsigned long __must_check copy_to_user(void __user *to, unsigned long __must_check copy_to_user(void __user *to,
const void *from, unsigned long n); const void *from, unsigned long n);
unsigned long __must_check copy_from_user(void *to, unsigned long __must_check copy_from_user(void *to,
const void __user *from, unsigned long n); const void __user *from,
unsigned long n);
long __must_check strncpy_from_user(char *dst, const char __user *src, long __must_check strncpy_from_user(char *dst, const char __user *src,
long count); long count);
long __must_check __strncpy_from_user(char *dst, long __must_check __strncpy_from_user(char *dst,