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authorArnd Bergmann <arnd@arndb.de>2015-01-14 17:17:49 -0500
committerArnd Bergmann <arnd@arndb.de>2015-01-14 17:17:49 -0500
commit643165c8bbc8617d8222cb50c89e34fe64d226cf (patch)
treee2a88de9b8efb0c9fa2436f53b0a3ab4948c4a55 /arch
parenteaa27f34e91a14cdceed26ed6c6793ec1d186115 (diff)
parent0795cb1b46e7938ed679ccd48f933e75272b30e3 (diff)
Merge tag 'uaccess_for_upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost into asm-generic
Merge "uaccess: fix sparse warning on get/put_user for bitwise types" from Michael S. Tsirkin: At the moment, if p and x are both tagged as bitwise types, some of get_user(x, p), put_user(x, p), __get_user(x, p), __put_user(x, p) might produce a sparse warning on many architectures. This is a false positive: *p on these architectures is loaded into long (typically using asm), then cast back to typeof(*p). When typeof(*p) is a bitwise type (which is uncommon), such a cast needs __force, otherwise sparse produces a warning. Some architectures already have the __force tag, add it where it's missing. I verified that adding these __force casts does not supress any useful warnings. Specifically, vhost wants to read/write bitwise types in userspace memory using get_user/put_user. At the moment this triggers sparse errors, since the value is passed through an integer. For example: __le32 __user *p; __u32 x; both put_user(x, p); and get_user(x, p); should be safe, but produce warnings on some architectures. While there, I noticed that a bunch of architectures violated coding style rules within uaccess macros. Included patches to fix them up. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> * tag 'uaccess_for_upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (37 commits) sparc32: nocheck uaccess coding style tweaks sparc64: nocheck uaccess coding style tweaks xtensa: macro whitespace fixes sh: macro whitespace fixes parisc: macro whitespace fixes m68k: macro whitespace fixes m32r: macro whitespace fixes frv: macro whitespace fixes cris: macro whitespace fixes avr32: macro whitespace fixes arm64: macro whitespace fixes arm: macro whitespace fixes alpha: macro whitespace fixes blackfin: macro whitespace fixes sparc64: uaccess_64 macro whitespace fixes sparc32: uaccess_32 macro whitespace fixes avr32: whitespace fix sh: fix put_user sparse errors metag: fix put_user sparse errors ia64: fix put_user sparse errors ...
Diffstat (limited to 'arch')
-rw-r--r--arch/alpha/include/asm/uaccess.h86
-rw-r--r--arch/arm/include/asm/uaccess.h96
-rw-r--r--arch/arm64/include/asm/uaccess.h4
-rw-r--r--arch/avr32/include/asm/uaccess.h24
-rw-r--r--arch/blackfin/include/asm/uaccess.h32
-rw-r--r--arch/cris/include/asm/uaccess.h117
-rw-r--r--arch/frv/include/asm/segment.h2
-rw-r--r--arch/ia64/include/asm/uaccess.h11
-rw-r--r--arch/m32r/include/asm/uaccess.h88
-rw-r--r--arch/m68k/include/asm/segment.h2
-rw-r--r--arch/m68k/include/asm/uaccess_mm.h40
-rw-r--r--arch/metag/include/asm/uaccess.h25
-rw-r--r--arch/openrisc/include/asm/uaccess.h4
-rw-r--r--arch/parisc/include/asm/uaccess.h116
-rw-r--r--arch/sh/include/asm/segment.h2
-rw-r--r--arch/sh/include/asm/uaccess.h4
-rw-r--r--arch/sh/include/asm/uaccess_64.h8
-rw-r--r--arch/sparc/include/asm/uaccess_32.h339
-rw-r--r--arch/sparc/include/asm/uaccess_64.h222
-rw-r--r--arch/x86/include/asm/uaccess.h2
-rw-r--r--arch/xtensa/include/asm/uaccess.h90
21 files changed, 700 insertions, 614 deletions
diff --git a/arch/alpha/include/asm/uaccess.h b/arch/alpha/include/asm/uaccess.h
index 766fdfde2b7a..9b0d40093c9a 100644
--- a/arch/alpha/include/asm/uaccess.h
+++ b/arch/alpha/include/asm/uaccess.h
@@ -27,7 +27,7 @@
27#define get_ds() (KERNEL_DS) 27#define get_ds() (KERNEL_DS)
28#define set_fs(x) (current_thread_info()->addr_limit = (x)) 28#define set_fs(x) (current_thread_info()->addr_limit = (x))
29 29
30#define segment_eq(a,b) ((a).seg == (b).seg) 30#define segment_eq(a, b) ((a).seg == (b).seg)
31 31
32/* 32/*
33 * Is a address valid? This does a straightforward calculation rather 33 * Is a address valid? This does a straightforward calculation rather
@@ -39,13 +39,13 @@
39 * - AND "addr+size" doesn't have any high-bits set 39 * - AND "addr+size" doesn't have any high-bits set
40 * - OR we are in kernel mode. 40 * - OR we are in kernel mode.
41 */ 41 */
42#define __access_ok(addr,size,segment) \ 42#define __access_ok(addr, size, segment) \
43 (((segment).seg & (addr | size | (addr+size))) == 0) 43 (((segment).seg & (addr | size | (addr+size))) == 0)
44 44
45#define access_ok(type,addr,size) \ 45#define access_ok(type, addr, size) \
46({ \ 46({ \
47 __chk_user_ptr(addr); \ 47 __chk_user_ptr(addr); \
48 __access_ok(((unsigned long)(addr)),(size),get_fs()); \ 48 __access_ok(((unsigned long)(addr)), (size), get_fs()); \
49}) 49})
50 50
51/* 51/*
@@ -60,20 +60,20 @@
60 * (a) re-use the arguments for side effects (sizeof/typeof is ok) 60 * (a) re-use the arguments for side effects (sizeof/typeof is ok)
61 * (b) require any knowledge of processes at this stage 61 * (b) require any knowledge of processes at this stage
62 */ 62 */
63#define put_user(x,ptr) \ 63#define put_user(x, ptr) \
64 __put_user_check((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr)),get_fs()) 64 __put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)), get_fs())
65#define get_user(x,ptr) \ 65#define get_user(x, ptr) \
66 __get_user_check((x),(ptr),sizeof(*(ptr)),get_fs()) 66 __get_user_check((x), (ptr), sizeof(*(ptr)), get_fs())
67 67
68/* 68/*
69 * The "__xxx" versions do not do address space checking, useful when 69 * The "__xxx" versions do not do address space checking, useful when
70 * doing multiple accesses to the same area (the programmer has to do the 70 * doing multiple accesses to the same area (the programmer has to do the
71 * checks by hand with "access_ok()") 71 * checks by hand with "access_ok()")
72 */ 72 */
73#define __put_user(x,ptr) \ 73#define __put_user(x, ptr) \
74 __put_user_nocheck((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr))) 74 __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
75#define __get_user(x,ptr) \ 75#define __get_user(x, ptr) \
76 __get_user_nocheck((x),(ptr),sizeof(*(ptr))) 76 __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
77 77
78/* 78/*
79 * The "lda %1, 2b-1b(%0)" bits are magic to get the assembler to 79 * The "lda %1, 2b-1b(%0)" bits are magic to get the assembler to
@@ -84,7 +84,7 @@
84 84
85extern void __get_user_unknown(void); 85extern void __get_user_unknown(void);
86 86
87#define __get_user_nocheck(x,ptr,size) \ 87#define __get_user_nocheck(x, ptr, size) \
88({ \ 88({ \
89 long __gu_err = 0; \ 89 long __gu_err = 0; \
90 unsigned long __gu_val; \ 90 unsigned long __gu_val; \
@@ -96,16 +96,16 @@ extern void __get_user_unknown(void);
96 case 8: __get_user_64(ptr); break; \ 96 case 8: __get_user_64(ptr); break; \
97 default: __get_user_unknown(); break; \ 97 default: __get_user_unknown(); break; \
98 } \ 98 } \
99 (x) = (__typeof__(*(ptr))) __gu_val; \ 99 (x) = (__force __typeof__(*(ptr))) __gu_val; \
100 __gu_err; \ 100 __gu_err; \
101}) 101})
102 102
103#define __get_user_check(x,ptr,size,segment) \ 103#define __get_user_check(x, ptr, size, segment) \
104({ \ 104({ \
105 long __gu_err = -EFAULT; \ 105 long __gu_err = -EFAULT; \
106 unsigned long __gu_val = 0; \ 106 unsigned long __gu_val = 0; \
107 const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ 107 const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
108 if (__access_ok((unsigned long)__gu_addr,size,segment)) { \ 108 if (__access_ok((unsigned long)__gu_addr, size, segment)) { \
109 __gu_err = 0; \ 109 __gu_err = 0; \
110 switch (size) { \ 110 switch (size) { \
111 case 1: __get_user_8(__gu_addr); break; \ 111 case 1: __get_user_8(__gu_addr); break; \
@@ -115,7 +115,7 @@ extern void __get_user_unknown(void);
115 default: __get_user_unknown(); break; \ 115 default: __get_user_unknown(); break; \
116 } \ 116 } \
117 } \ 117 } \
118 (x) = (__typeof__(*(ptr))) __gu_val; \ 118 (x) = (__force __typeof__(*(ptr))) __gu_val; \
119 __gu_err; \ 119 __gu_err; \
120}) 120})
121 121
@@ -201,31 +201,31 @@ struct __large_struct { unsigned long buf[100]; };
201 201
202extern void __put_user_unknown(void); 202extern void __put_user_unknown(void);
203 203
204#define __put_user_nocheck(x,ptr,size) \ 204#define __put_user_nocheck(x, ptr, size) \
205({ \ 205({ \
206 long __pu_err = 0; \ 206 long __pu_err = 0; \
207 __chk_user_ptr(ptr); \ 207 __chk_user_ptr(ptr); \
208 switch (size) { \ 208 switch (size) { \
209 case 1: __put_user_8(x,ptr); break; \ 209 case 1: __put_user_8(x, ptr); break; \
210 case 2: __put_user_16(x,ptr); break; \ 210 case 2: __put_user_16(x, ptr); break; \
211 case 4: __put_user_32(x,ptr); break; \ 211 case 4: __put_user_32(x, ptr); break; \
212 case 8: __put_user_64(x,ptr); break; \ 212 case 8: __put_user_64(x, ptr); break; \
213 default: __put_user_unknown(); break; \ 213 default: __put_user_unknown(); break; \
214 } \ 214 } \
215 __pu_err; \ 215 __pu_err; \
216}) 216})
217 217
218#define __put_user_check(x,ptr,size,segment) \ 218#define __put_user_check(x, ptr, size, segment) \
219({ \ 219({ \
220 long __pu_err = -EFAULT; \ 220 long __pu_err = -EFAULT; \
221 __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ 221 __typeof__(*(ptr)) __user *__pu_addr = (ptr); \
222 if (__access_ok((unsigned long)__pu_addr,size,segment)) { \ 222 if (__access_ok((unsigned long)__pu_addr, size, segment)) { \
223 __pu_err = 0; \ 223 __pu_err = 0; \
224 switch (size) { \ 224 switch (size) { \
225 case 1: __put_user_8(x,__pu_addr); break; \ 225 case 1: __put_user_8(x, __pu_addr); break; \
226 case 2: __put_user_16(x,__pu_addr); break; \ 226 case 2: __put_user_16(x, __pu_addr); break; \
227 case 4: __put_user_32(x,__pu_addr); break; \ 227 case 4: __put_user_32(x, __pu_addr); break; \
228 case 8: __put_user_64(x,__pu_addr); break; \ 228 case 8: __put_user_64(x, __pu_addr); break; \
229 default: __put_user_unknown(); break; \ 229 default: __put_user_unknown(); break; \
230 } \ 230 } \
231 } \ 231 } \
@@ -237,7 +237,7 @@ extern void __put_user_unknown(void);
237 * instead of writing: this is because they do not write to 237 * instead of writing: this is because they do not write to
238 * any memory gcc knows about, so there are no aliasing issues 238 * any memory gcc knows about, so there are no aliasing issues
239 */ 239 */
240#define __put_user_64(x,addr) \ 240#define __put_user_64(x, addr) \
241__asm__ __volatile__("1: stq %r2,%1\n" \ 241__asm__ __volatile__("1: stq %r2,%1\n" \
242 "2:\n" \ 242 "2:\n" \
243 ".section __ex_table,\"a\"\n" \ 243 ".section __ex_table,\"a\"\n" \
@@ -247,7 +247,7 @@ __asm__ __volatile__("1: stq %r2,%1\n" \
247 : "=r"(__pu_err) \ 247 : "=r"(__pu_err) \
248 : "m" (__m(addr)), "rJ" (x), "0"(__pu_err)) 248 : "m" (__m(addr)), "rJ" (x), "0"(__pu_err))
249 249
250#define __put_user_32(x,addr) \ 250#define __put_user_32(x, addr) \
251__asm__ __volatile__("1: stl %r2,%1\n" \ 251__asm__ __volatile__("1: stl %r2,%1\n" \
252 "2:\n" \ 252 "2:\n" \
253 ".section __ex_table,\"a\"\n" \ 253 ".section __ex_table,\"a\"\n" \
@@ -260,7 +260,7 @@ __asm__ __volatile__("1: stl %r2,%1\n" \
260#ifdef __alpha_bwx__ 260#ifdef __alpha_bwx__
261/* Those lucky bastards with ev56 and later CPUs can do byte/word moves. */ 261/* Those lucky bastards with ev56 and later CPUs can do byte/word moves. */
262 262
263#define __put_user_16(x,addr) \ 263#define __put_user_16(x, addr) \
264__asm__ __volatile__("1: stw %r2,%1\n" \ 264__asm__ __volatile__("1: stw %r2,%1\n" \
265 "2:\n" \ 265 "2:\n" \
266 ".section __ex_table,\"a\"\n" \ 266 ".section __ex_table,\"a\"\n" \
@@ -270,7 +270,7 @@ __asm__ __volatile__("1: stw %r2,%1\n" \
270 : "=r"(__pu_err) \ 270 : "=r"(__pu_err) \
271 : "m"(__m(addr)), "rJ"(x), "0"(__pu_err)) 271 : "m"(__m(addr)), "rJ"(x), "0"(__pu_err))
272 272
273#define __put_user_8(x,addr) \ 273#define __put_user_8(x, addr) \
274__asm__ __volatile__("1: stb %r2,%1\n" \ 274__asm__ __volatile__("1: stb %r2,%1\n" \
275 "2:\n" \ 275 "2:\n" \
276 ".section __ex_table,\"a\"\n" \ 276 ".section __ex_table,\"a\"\n" \
@@ -283,7 +283,7 @@ __asm__ __volatile__("1: stb %r2,%1\n" \
283/* Unfortunately, we can't get an unaligned access trap for the sub-word 283/* Unfortunately, we can't get an unaligned access trap for the sub-word
284 write, so we have to do a general unaligned operation. */ 284 write, so we have to do a general unaligned operation. */
285 285
286#define __put_user_16(x,addr) \ 286#define __put_user_16(x, addr) \
287{ \ 287{ \
288 long __pu_tmp1, __pu_tmp2, __pu_tmp3, __pu_tmp4; \ 288 long __pu_tmp1, __pu_tmp2, __pu_tmp3, __pu_tmp4; \
289 __asm__ __volatile__( \ 289 __asm__ __volatile__( \
@@ -308,13 +308,13 @@ __asm__ __volatile__("1: stb %r2,%1\n" \
308 " .long 4b - .\n" \ 308 " .long 4b - .\n" \
309 " lda $31, 5b-4b(%0)\n" \ 309 " lda $31, 5b-4b(%0)\n" \
310 ".previous" \ 310 ".previous" \
311 : "=r"(__pu_err), "=&r"(__pu_tmp1), \ 311 : "=r"(__pu_err), "=&r"(__pu_tmp1), \
312 "=&r"(__pu_tmp2), "=&r"(__pu_tmp3), \ 312 "=&r"(__pu_tmp2), "=&r"(__pu_tmp3), \
313 "=&r"(__pu_tmp4) \ 313 "=&r"(__pu_tmp4) \
314 : "r"(addr), "r"((unsigned long)(x)), "0"(__pu_err)); \ 314 : "r"(addr), "r"((unsigned long)(x)), "0"(__pu_err)); \
315} 315}
316 316
317#define __put_user_8(x,addr) \ 317#define __put_user_8(x, addr) \
318{ \ 318{ \
319 long __pu_tmp1, __pu_tmp2; \ 319 long __pu_tmp1, __pu_tmp2; \
320 __asm__ __volatile__( \ 320 __asm__ __volatile__( \
@@ -330,7 +330,7 @@ __asm__ __volatile__("1: stb %r2,%1\n" \
330 " .long 2b - .\n" \ 330 " .long 2b - .\n" \
331 " lda $31, 3b-2b(%0)\n" \ 331 " lda $31, 3b-2b(%0)\n" \
332 ".previous" \ 332 ".previous" \
333 : "=r"(__pu_err), \ 333 : "=r"(__pu_err), \
334 "=&r"(__pu_tmp1), "=&r"(__pu_tmp2) \ 334 "=&r"(__pu_tmp1), "=&r"(__pu_tmp2) \
335 : "r"((unsigned long)(x)), "r"(addr), "0"(__pu_err)); \ 335 : "r"((unsigned long)(x)), "r"(addr), "0"(__pu_err)); \
336} 336}
@@ -366,7 +366,7 @@ __copy_tofrom_user_nocheck(void *to, const void *from, long len)
366 : "=r" (__cu_len), "=r" (__cu_from), "=r" (__cu_to) 366 : "=r" (__cu_len), "=r" (__cu_from), "=r" (__cu_to)
367 : __module_address(__copy_user) 367 : __module_address(__copy_user)
368 "0" (__cu_len), "1" (__cu_from), "2" (__cu_to) 368 "0" (__cu_len), "1" (__cu_from), "2" (__cu_to)
369 : "$1","$2","$3","$4","$5","$28","memory"); 369 : "$1", "$2", "$3", "$4", "$5", "$28", "memory");
370 370
371 return __cu_len; 371 return __cu_len;
372} 372}
@@ -379,15 +379,15 @@ __copy_tofrom_user(void *to, const void *from, long len, const void __user *vali
379 return len; 379 return len;
380} 380}
381 381
382#define __copy_to_user(to,from,n) \ 382#define __copy_to_user(to, from, n) \
383({ \ 383({ \
384 __chk_user_ptr(to); \ 384 __chk_user_ptr(to); \
385 __copy_tofrom_user_nocheck((__force void *)(to),(from),(n)); \ 385 __copy_tofrom_user_nocheck((__force void *)(to), (from), (n)); \
386}) 386})
387#define __copy_from_user(to,from,n) \ 387#define __copy_from_user(to, from, n) \
388({ \ 388({ \
389 __chk_user_ptr(from); \ 389 __chk_user_ptr(from); \
390 __copy_tofrom_user_nocheck((to),(__force void *)(from),(n)); \ 390 __copy_tofrom_user_nocheck((to), (__force void *)(from), (n)); \
391}) 391})
392 392
393#define __copy_to_user_inatomic __copy_to_user 393#define __copy_to_user_inatomic __copy_to_user
@@ -418,7 +418,7 @@ __clear_user(void __user *to, long len)
418 : "=r"(__cl_len), "=r"(__cl_to) 418 : "=r"(__cl_len), "=r"(__cl_to)
419 : __module_address(__do_clear_user) 419 : __module_address(__do_clear_user)
420 "0"(__cl_len), "1"(__cl_to) 420 "0"(__cl_len), "1"(__cl_to)
421 : "$1","$2","$3","$4","$5","$28","memory"); 421 : "$1", "$2", "$3", "$4", "$5", "$28", "memory");
422 return __cl_len; 422 return __cl_len;
423} 423}
424 424
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 4767eb9caa78..ce0786efd26c 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -73,7 +73,7 @@ static inline void set_fs(mm_segment_t fs)
73 modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_CLIENT : DOMAIN_MANAGER); 73 modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_CLIENT : DOMAIN_MANAGER);
74} 74}
75 75
76#define segment_eq(a,b) ((a) == (b)) 76#define segment_eq(a, b) ((a) == (b))
77 77
78#define __addr_ok(addr) ({ \ 78#define __addr_ok(addr) ({ \
79 unsigned long flag; \ 79 unsigned long flag; \
@@ -84,7 +84,7 @@ static inline void set_fs(mm_segment_t fs)
84 (flag == 0); }) 84 (flag == 0); })
85 85
86/* We use 33-bit arithmetic here... */ 86/* We use 33-bit arithmetic here... */
87#define __range_ok(addr,size) ({ \ 87#define __range_ok(addr, size) ({ \
88 unsigned long flag, roksum; \ 88 unsigned long flag, roksum; \
89 __chk_user_ptr(addr); \ 89 __chk_user_ptr(addr); \
90 __asm__("adds %1, %2, %3; sbcccs %1, %1, %0; movcc %0, #0" \ 90 __asm__("adds %1, %2, %3; sbcccs %1, %1, %0; movcc %0, #0" \
@@ -123,7 +123,7 @@ extern int __get_user_64t_4(void *);
123#define __GUP_CLOBBER_32t_8 "lr", "cc" 123#define __GUP_CLOBBER_32t_8 "lr", "cc"
124#define __GUP_CLOBBER_8 "lr", "cc" 124#define __GUP_CLOBBER_8 "lr", "cc"
125 125
126#define __get_user_x(__r2,__p,__e,__l,__s) \ 126#define __get_user_x(__r2, __p, __e, __l, __s) \
127 __asm__ __volatile__ ( \ 127 __asm__ __volatile__ ( \
128 __asmeq("%0", "r0") __asmeq("%1", "r2") \ 128 __asmeq("%0", "r0") __asmeq("%1", "r2") \
129 __asmeq("%3", "r1") \ 129 __asmeq("%3", "r1") \
@@ -134,7 +134,7 @@ extern int __get_user_64t_4(void *);
134 134
135/* narrowing a double-word get into a single 32bit word register: */ 135/* narrowing a double-word get into a single 32bit word register: */
136#ifdef __ARMEB__ 136#ifdef __ARMEB__
137#define __get_user_x_32t(__r2, __p, __e, __l, __s) \ 137#define __get_user_x_32t(__r2, __p, __e, __l, __s) \
138 __get_user_x(__r2, __p, __e, __l, 32t_8) 138 __get_user_x(__r2, __p, __e, __l, 32t_8)
139#else 139#else
140#define __get_user_x_32t __get_user_x 140#define __get_user_x_32t __get_user_x
@@ -158,7 +158,7 @@ extern int __get_user_64t_4(void *);
158#endif 158#endif
159 159
160 160
161#define __get_user_check(x,p) \ 161#define __get_user_check(x, p) \
162 ({ \ 162 ({ \
163 unsigned long __limit = current_thread_info()->addr_limit - 1; \ 163 unsigned long __limit = current_thread_info()->addr_limit - 1; \
164 register const typeof(*(p)) __user *__p asm("r0") = (p);\ 164 register const typeof(*(p)) __user *__p asm("r0") = (p);\
@@ -196,10 +196,10 @@ extern int __get_user_64t_4(void *);
196 __e; \ 196 __e; \
197 }) 197 })
198 198
199#define get_user(x,p) \ 199#define get_user(x, p) \
200 ({ \ 200 ({ \
201 might_fault(); \ 201 might_fault(); \
202 __get_user_check(x,p); \ 202 __get_user_check(x, p); \
203 }) 203 })
204 204
205extern int __put_user_1(void *, unsigned int); 205extern int __put_user_1(void *, unsigned int);
@@ -207,7 +207,7 @@ extern int __put_user_2(void *, unsigned int);
207extern int __put_user_4(void *, unsigned int); 207extern int __put_user_4(void *, unsigned int);
208extern int __put_user_8(void *, unsigned long long); 208extern int __put_user_8(void *, unsigned long long);
209 209
210#define __put_user_x(__r2,__p,__e,__l,__s) \ 210#define __put_user_x(__r2, __p, __e, __l, __s) \
211 __asm__ __volatile__ ( \ 211 __asm__ __volatile__ ( \
212 __asmeq("%0", "r0") __asmeq("%2", "r2") \ 212 __asmeq("%0", "r0") __asmeq("%2", "r2") \
213 __asmeq("%3", "r1") \ 213 __asmeq("%3", "r1") \
@@ -216,7 +216,7 @@ extern int __put_user_8(void *, unsigned long long);
216 : "0" (__p), "r" (__r2), "r" (__l) \ 216 : "0" (__p), "r" (__r2), "r" (__l) \
217 : "ip", "lr", "cc") 217 : "ip", "lr", "cc")
218 218
219#define __put_user_check(x,p) \ 219#define __put_user_check(x, p) \
220 ({ \ 220 ({ \
221 unsigned long __limit = current_thread_info()->addr_limit - 1; \ 221 unsigned long __limit = current_thread_info()->addr_limit - 1; \
222 const typeof(*(p)) __user *__tmp_p = (p); \ 222 const typeof(*(p)) __user *__tmp_p = (p); \
@@ -242,10 +242,10 @@ extern int __put_user_8(void *, unsigned long long);
242 __e; \ 242 __e; \
243 }) 243 })
244 244
245#define put_user(x,p) \ 245#define put_user(x, p) \
246 ({ \ 246 ({ \
247 might_fault(); \ 247 might_fault(); \
248 __put_user_check(x,p); \ 248 __put_user_check(x, p); \
249 }) 249 })
250 250
251#else /* CONFIG_MMU */ 251#else /* CONFIG_MMU */
@@ -255,21 +255,21 @@ extern int __put_user_8(void *, unsigned long long);
255 */ 255 */
256#define USER_DS KERNEL_DS 256#define USER_DS KERNEL_DS
257 257
258#define segment_eq(a,b) (1) 258#define segment_eq(a, b) (1)
259#define __addr_ok(addr) ((void)(addr),1) 259#define __addr_ok(addr) ((void)(addr), 1)
260#define __range_ok(addr,size) ((void)(addr),0) 260#define __range_ok(addr, size) ((void)(addr), 0)
261#define get_fs() (KERNEL_DS) 261#define get_fs() (KERNEL_DS)
262 262
263static inline void set_fs(mm_segment_t fs) 263static inline void set_fs(mm_segment_t fs)
264{ 264{
265} 265}
266 266
267#define get_user(x,p) __get_user(x,p) 267#define get_user(x, p) __get_user(x, p)
268#define put_user(x,p) __put_user(x,p) 268#define put_user(x, p) __put_user(x, p)
269 269
270#endif /* CONFIG_MMU */ 270#endif /* CONFIG_MMU */
271 271
272#define access_ok(type,addr,size) (__range_ok(addr,size) == 0) 272#define access_ok(type, addr, size) (__range_ok(addr, size) == 0)
273 273
274#define user_addr_max() \ 274#define user_addr_max() \
275 (segment_eq(get_fs(), KERNEL_DS) ? ~0UL : get_fs()) 275 (segment_eq(get_fs(), KERNEL_DS) ? ~0UL : get_fs())
@@ -283,35 +283,35 @@ static inline void set_fs(mm_segment_t fs)
283 * error occurs, and leave it unchanged on success. Note that these 283 * error occurs, and leave it unchanged on success. Note that these
284 * versions are void (ie, don't return a value as such). 284 * versions are void (ie, don't return a value as such).
285 */ 285 */
286#define __get_user(x,ptr) \ 286#define __get_user(x, ptr) \
287({ \ 287({ \
288 long __gu_err = 0; \ 288 long __gu_err = 0; \
289 __get_user_err((x),(ptr),__gu_err); \ 289 __get_user_err((x), (ptr), __gu_err); \
290 __gu_err; \ 290 __gu_err; \
291}) 291})
292 292
293#define __get_user_error(x,ptr,err) \ 293#define __get_user_error(x, ptr, err) \
294({ \ 294({ \
295 __get_user_err((x),(ptr),err); \ 295 __get_user_err((x), (ptr), err); \
296 (void) 0; \ 296 (void) 0; \
297}) 297})
298 298
299#define __get_user_err(x,ptr,err) \ 299#define __get_user_err(x, ptr, err) \
300do { \ 300do { \
301 unsigned long __gu_addr = (unsigned long)(ptr); \ 301 unsigned long __gu_addr = (unsigned long)(ptr); \
302 unsigned long __gu_val; \ 302 unsigned long __gu_val; \
303 __chk_user_ptr(ptr); \ 303 __chk_user_ptr(ptr); \
304 might_fault(); \ 304 might_fault(); \
305 switch (sizeof(*(ptr))) { \ 305 switch (sizeof(*(ptr))) { \
306 case 1: __get_user_asm_byte(__gu_val,__gu_addr,err); break; \ 306 case 1: __get_user_asm_byte(__gu_val, __gu_addr, err); break; \
307 case 2: __get_user_asm_half(__gu_val,__gu_addr,err); break; \ 307 case 2: __get_user_asm_half(__gu_val, __gu_addr, err); break; \
308 case 4: __get_user_asm_word(__gu_val,__gu_addr,err); break; \ 308 case 4: __get_user_asm_word(__gu_val, __gu_addr, err); break; \
309 default: (__gu_val) = __get_user_bad(); \ 309 default: (__gu_val) = __get_user_bad(); \
310 } \ 310 } \
311 (x) = (__typeof__(*(ptr)))__gu_val; \ 311 (x) = (__typeof__(*(ptr)))__gu_val; \
312} while (0) 312} while (0)
313 313
314#define __get_user_asm_byte(x,addr,err) \ 314#define __get_user_asm_byte(x, addr, err) \
315 __asm__ __volatile__( \ 315 __asm__ __volatile__( \
316 "1: " TUSER(ldrb) " %1,[%2],#0\n" \ 316 "1: " TUSER(ldrb) " %1,[%2],#0\n" \
317 "2:\n" \ 317 "2:\n" \
@@ -330,7 +330,7 @@ do { \
330 : "cc") 330 : "cc")
331 331
332#ifndef __ARMEB__ 332#ifndef __ARMEB__
333#define __get_user_asm_half(x,__gu_addr,err) \ 333#define __get_user_asm_half(x, __gu_addr, err) \
334({ \ 334({ \
335 unsigned long __b1, __b2; \ 335 unsigned long __b1, __b2; \
336 __get_user_asm_byte(__b1, __gu_addr, err); \ 336 __get_user_asm_byte(__b1, __gu_addr, err); \
@@ -338,7 +338,7 @@ do { \
338 (x) = __b1 | (__b2 << 8); \ 338 (x) = __b1 | (__b2 << 8); \
339}) 339})
340#else 340#else
341#define __get_user_asm_half(x,__gu_addr,err) \ 341#define __get_user_asm_half(x, __gu_addr, err) \
342({ \ 342({ \
343 unsigned long __b1, __b2; \ 343 unsigned long __b1, __b2; \
344 __get_user_asm_byte(__b1, __gu_addr, err); \ 344 __get_user_asm_byte(__b1, __gu_addr, err); \
@@ -347,7 +347,7 @@ do { \
347}) 347})
348#endif 348#endif
349 349
350#define __get_user_asm_word(x,addr,err) \ 350#define __get_user_asm_word(x, addr, err) \
351 __asm__ __volatile__( \ 351 __asm__ __volatile__( \
352 "1: " TUSER(ldr) " %1,[%2],#0\n" \ 352 "1: " TUSER(ldr) " %1,[%2],#0\n" \
353 "2:\n" \ 353 "2:\n" \
@@ -365,35 +365,35 @@ do { \
365 : "r" (addr), "i" (-EFAULT) \ 365 : "r" (addr), "i" (-EFAULT) \
366 : "cc") 366 : "cc")
367 367
368#define __put_user(x,ptr) \ 368#define __put_user(x, ptr) \
369({ \ 369({ \
370 long __pu_err = 0; \ 370 long __pu_err = 0; \
371 __put_user_err((x),(ptr),__pu_err); \ 371 __put_user_err((x), (ptr), __pu_err); \
372 __pu_err; \ 372 __pu_err; \
373}) 373})
374 374
375#define __put_user_error(x,ptr,err) \ 375#define __put_user_error(x, ptr, err) \
376({ \ 376({ \
377 __put_user_err((x),(ptr),err); \ 377 __put_user_err((x), (ptr), err); \
378 (void) 0; \ 378 (void) 0; \
379}) 379})
380 380
381#define __put_user_err(x,ptr,err) \ 381#define __put_user_err(x, ptr, err) \
382do { \ 382do { \
383 unsigned long __pu_addr = (unsigned long)(ptr); \ 383 unsigned long __pu_addr = (unsigned long)(ptr); \
384 __typeof__(*(ptr)) __pu_val = (x); \ 384 __typeof__(*(ptr)) __pu_val = (x); \
385 __chk_user_ptr(ptr); \ 385 __chk_user_ptr(ptr); \
386 might_fault(); \ 386 might_fault(); \
387 switch (sizeof(*(ptr))) { \ 387 switch (sizeof(*(ptr))) { \
388 case 1: __put_user_asm_byte(__pu_val,__pu_addr,err); break; \ 388 case 1: __put_user_asm_byte(__pu_val, __pu_addr, err); break; \
389 case 2: __put_user_asm_half(__pu_val,__pu_addr,err); break; \ 389 case 2: __put_user_asm_half(__pu_val, __pu_addr, err); break; \
390 case 4: __put_user_asm_word(__pu_val,__pu_addr,err); break; \ 390 case 4: __put_user_asm_word(__pu_val, __pu_addr, err); break; \
391 case 8: __put_user_asm_dword(__pu_val,__pu_addr,err); break; \ 391 case 8: __put_user_asm_dword(__pu_val, __pu_addr, err); break; \
392 default: __put_user_bad(); \ 392 default: __put_user_bad(); \
393 } \ 393 } \
394} while (0) 394} while (0)
395 395
396#define __put_user_asm_byte(x,__pu_addr,err) \ 396#define __put_user_asm_byte(x, __pu_addr, err) \
397 __asm__ __volatile__( \ 397 __asm__ __volatile__( \
398 "1: " TUSER(strb) " %1,[%2],#0\n" \ 398 "1: " TUSER(strb) " %1,[%2],#0\n" \
399 "2:\n" \ 399 "2:\n" \
@@ -411,22 +411,22 @@ do { \
411 : "cc") 411 : "cc")
412 412
413#ifndef __ARMEB__ 413#ifndef __ARMEB__
414#define __put_user_asm_half(x,__pu_addr,err) \ 414#define __put_user_asm_half(x, __pu_addr, err) \
415({ \ 415({ \
416 unsigned long __temp = (unsigned long)(x); \ 416 unsigned long __temp = (__force unsigned long)(x); \
417 __put_user_asm_byte(__temp, __pu_addr, err); \ 417 __put_user_asm_byte(__temp, __pu_addr, err); \
418 __put_user_asm_byte(__temp >> 8, __pu_addr + 1, err); \ 418 __put_user_asm_byte(__temp >> 8, __pu_addr + 1, err); \
419}) 419})
420#else 420#else
421#define __put_user_asm_half(x,__pu_addr,err) \ 421#define __put_user_asm_half(x, __pu_addr, err) \
422({ \ 422({ \
423 unsigned long __temp = (unsigned long)(x); \ 423 unsigned long __temp = (__force unsigned long)(x); \
424 __put_user_asm_byte(__temp >> 8, __pu_addr, err); \ 424 __put_user_asm_byte(__temp >> 8, __pu_addr, err); \
425 __put_user_asm_byte(__temp, __pu_addr + 1, err); \ 425 __put_user_asm_byte(__temp, __pu_addr + 1, err); \
426}) 426})
427#endif 427#endif
428 428
429#define __put_user_asm_word(x,__pu_addr,err) \ 429#define __put_user_asm_word(x, __pu_addr, err) \
430 __asm__ __volatile__( \ 430 __asm__ __volatile__( \
431 "1: " TUSER(str) " %1,[%2],#0\n" \ 431 "1: " TUSER(str) " %1,[%2],#0\n" \
432 "2:\n" \ 432 "2:\n" \
@@ -451,7 +451,7 @@ do { \
451#define __reg_oper1 "%R2" 451#define __reg_oper1 "%R2"
452#endif 452#endif
453 453
454#define __put_user_asm_dword(x,__pu_addr,err) \ 454#define __put_user_asm_dword(x, __pu_addr, err) \
455 __asm__ __volatile__( \ 455 __asm__ __volatile__( \
456 ARM( "1: " TUSER(str) " " __reg_oper1 ", [%1], #4\n" ) \ 456 ARM( "1: " TUSER(str) " " __reg_oper1 ", [%1], #4\n" ) \
457 ARM( "2: " TUSER(str) " " __reg_oper0 ", [%1]\n" ) \ 457 ARM( "2: " TUSER(str) " " __reg_oper0 ", [%1]\n" ) \
@@ -480,9 +480,9 @@ extern unsigned long __must_check __copy_to_user_std(void __user *to, const void
480extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n); 480extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n);
481extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned long n); 481extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned long n);
482#else 482#else
483#define __copy_from_user(to,from,n) (memcpy(to, (void __force *)from, n), 0) 483#define __copy_from_user(to, from, n) (memcpy(to, (void __force *)from, n), 0)
484#define __copy_to_user(to,from,n) (memcpy((void __force *)to, from, n), 0) 484#define __copy_to_user(to, from, n) (memcpy((void __force *)to, from, n), 0)
485#define __clear_user(addr,n) (memset((void __force *)addr, 0, n), 0) 485#define __clear_user(addr, n) (memset((void __force *)addr, 0, n), 0)
486#endif 486#endif
487 487
488static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n) 488static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 3bf8f4e99a51..07e1ba449bf1 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -63,7 +63,7 @@ static inline void set_fs(mm_segment_t fs)
63 current_thread_info()->addr_limit = fs; 63 current_thread_info()->addr_limit = fs;
64} 64}
65 65
66#define segment_eq(a,b) ((a) == (b)) 66#define segment_eq(a, b) ((a) == (b))
67 67
68/* 68/*
69 * Return 1 if addr < current->addr_limit, 0 otherwise. 69 * Return 1 if addr < current->addr_limit, 0 otherwise.
@@ -147,7 +147,7 @@ do { \
147 default: \ 147 default: \
148 BUILD_BUG(); \ 148 BUILD_BUG(); \
149 } \ 149 } \
150 (x) = (__typeof__(*(ptr)))__gu_val; \ 150 (x) = (__force __typeof__(*(ptr)))__gu_val; \
151} while (0) 151} while (0)
152 152
153#define __get_user(x, ptr) \ 153#define __get_user(x, ptr) \
diff --git a/arch/avr32/include/asm/uaccess.h b/arch/avr32/include/asm/uaccess.h
index 245b2ee213c9..a46f7cf3e1ea 100644
--- a/arch/avr32/include/asm/uaccess.h
+++ b/arch/avr32/include/asm/uaccess.h
@@ -26,7 +26,7 @@ typedef struct {
26 * For historical reasons (Data Segment Register?), these macros are misnamed. 26 * For historical reasons (Data Segment Register?), these macros are misnamed.
27 */ 27 */
28#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) 28#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
29#define segment_eq(a,b) ((a).is_user_space == (b).is_user_space) 29#define segment_eq(a, b) ((a).is_user_space == (b).is_user_space)
30 30
31#define USER_ADDR_LIMIT 0x80000000 31#define USER_ADDR_LIMIT 0x80000000
32 32
@@ -108,8 +108,8 @@ static inline __kernel_size_t __copy_from_user(void *to,
108 * 108 *
109 * Returns zero on success, or -EFAULT on error. 109 * Returns zero on success, or -EFAULT on error.
110 */ 110 */
111#define put_user(x,ptr) \ 111#define put_user(x, ptr) \
112 __put_user_check((x),(ptr),sizeof(*(ptr))) 112 __put_user_check((x), (ptr), sizeof(*(ptr)))
113 113
114/* 114/*
115 * get_user: - Get a simple variable from user space. 115 * get_user: - Get a simple variable from user space.
@@ -128,8 +128,8 @@ static inline __kernel_size_t __copy_from_user(void *to,
128 * Returns zero on success, or -EFAULT on error. 128 * Returns zero on success, or -EFAULT on error.
129 * On error, the variable @x is set to zero. 129 * On error, the variable @x is set to zero.
130 */ 130 */
131#define get_user(x,ptr) \ 131#define get_user(x, ptr) \
132 __get_user_check((x),(ptr),sizeof(*(ptr))) 132 __get_user_check((x), (ptr), sizeof(*(ptr)))
133 133
134/* 134/*
135 * __put_user: - Write a simple value into user space, with less checking. 135 * __put_user: - Write a simple value into user space, with less checking.
@@ -150,8 +150,8 @@ static inline __kernel_size_t __copy_from_user(void *to,
150 * 150 *
151 * Returns zero on success, or -EFAULT on error. 151 * Returns zero on success, or -EFAULT on error.
152 */ 152 */
153#define __put_user(x,ptr) \ 153#define __put_user(x, ptr) \
154 __put_user_nocheck((x),(ptr),sizeof(*(ptr))) 154 __put_user_nocheck((x), (ptr), sizeof(*(ptr)))
155 155
156/* 156/*
157 * __get_user: - Get a simple variable from user space, with less checking. 157 * __get_user: - Get a simple variable from user space, with less checking.
@@ -173,8 +173,8 @@ static inline __kernel_size_t __copy_from_user(void *to,
173 * Returns zero on success, or -EFAULT on error. 173 * Returns zero on success, or -EFAULT on error.
174 * On error, the variable @x is set to zero. 174 * On error, the variable @x is set to zero.
175 */ 175 */
176#define __get_user(x,ptr) \ 176#define __get_user(x, ptr) \
177 __get_user_nocheck((x),(ptr),sizeof(*(ptr))) 177 __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
178 178
179extern int __get_user_bad(void); 179extern int __get_user_bad(void);
180extern int __put_user_bad(void); 180extern int __put_user_bad(void);
@@ -191,7 +191,7 @@ extern int __put_user_bad(void);
191 default: __gu_err = __get_user_bad(); break; \ 191 default: __gu_err = __get_user_bad(); break; \
192 } \ 192 } \
193 \ 193 \
194 x = (typeof(*(ptr)))__gu_val; \ 194 x = (__force typeof(*(ptr)))__gu_val; \
195 __gu_err; \ 195 __gu_err; \
196}) 196})
197 197
@@ -222,7 +222,7 @@ extern int __put_user_bad(void);
222 } else { \ 222 } else { \
223 __gu_err = -EFAULT; \ 223 __gu_err = -EFAULT; \
224 } \ 224 } \
225 x = (typeof(*(ptr)))__gu_val; \ 225 x = (__force typeof(*(ptr)))__gu_val; \
226 __gu_err; \ 226 __gu_err; \
227}) 227})
228 228
@@ -278,7 +278,7 @@ extern int __put_user_bad(void);
278 __pu_err); \ 278 __pu_err); \
279 break; \ 279 break; \
280 case 8: \ 280 case 8: \
281 __put_user_asm("d", __pu_addr, __pu_val, \ 281 __put_user_asm("d", __pu_addr, __pu_val, \
282 __pu_err); \ 282 __pu_err); \
283 break; \ 283 break; \
284 default: \ 284 default: \
diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h
index 57701c3b8a59..90612a7f2cf3 100644
--- a/arch/blackfin/include/asm/uaccess.h
+++ b/arch/blackfin/include/asm/uaccess.h
@@ -27,7 +27,7 @@ static inline void set_fs(mm_segment_t fs)
27 current_thread_info()->addr_limit = fs; 27 current_thread_info()->addr_limit = fs;
28} 28}
29 29
30#define segment_eq(a,b) ((a) == (b)) 30#define segment_eq(a, b) ((a) == (b))
31 31
32#define VERIFY_READ 0 32#define VERIFY_READ 0
33#define VERIFY_WRITE 1 33#define VERIFY_WRITE 1
@@ -68,11 +68,11 @@ struct exception_table_entry {
68 * use the right size if we just have the right pointer type. 68 * use the right size if we just have the right pointer type.
69 */ 69 */
70 70
71#define put_user(x,p) \ 71#define put_user(x, p) \
72 ({ \ 72 ({ \
73 int _err = 0; \ 73 int _err = 0; \
74 typeof(*(p)) _x = (x); \ 74 typeof(*(p)) _x = (x); \
75 typeof(*(p)) __user *_p = (p); \ 75 typeof(*(p)) __user *_p = (p); \
76 if (!access_ok(VERIFY_WRITE, _p, sizeof(*(_p)))) {\ 76 if (!access_ok(VERIFY_WRITE, _p, sizeof(*(_p)))) {\
77 _err = -EFAULT; \ 77 _err = -EFAULT; \
78 } \ 78 } \
@@ -89,10 +89,10 @@ struct exception_table_entry {
89 break; \ 89 break; \
90 case 8: { \ 90 case 8: { \
91 long _xl, _xh; \ 91 long _xl, _xh; \
92 _xl = ((long *)&_x)[0]; \ 92 _xl = ((__force long *)&_x)[0]; \
93 _xh = ((long *)&_x)[1]; \ 93 _xh = ((__force long *)&_x)[1]; \
94 __put_user_asm(_xl, ((long __user *)_p)+0, ); \ 94 __put_user_asm(_xl, ((__force long __user *)_p)+0, );\
95 __put_user_asm(_xh, ((long __user *)_p)+1, ); \ 95 __put_user_asm(_xh, ((__force long __user *)_p)+1, );\
96 } break; \ 96 } break; \
97 default: \ 97 default: \
98 _err = __put_user_bad(); \ 98 _err = __put_user_bad(); \
@@ -102,7 +102,7 @@ struct exception_table_entry {
102 _err; \ 102 _err; \
103 }) 103 })
104 104
105#define __put_user(x,p) put_user(x,p) 105#define __put_user(x, p) put_user(x, p)
106static inline int bad_user_access_length(void) 106static inline int bad_user_access_length(void)
107{ 107{
108 panic("bad_user_access_length"); 108 panic("bad_user_access_length");
@@ -121,10 +121,10 @@ static inline int bad_user_access_length(void)
121 121
122#define __ptr(x) ((unsigned long __force *)(x)) 122#define __ptr(x) ((unsigned long __force *)(x))
123 123
124#define __put_user_asm(x,p,bhw) \ 124#define __put_user_asm(x, p, bhw) \
125 __asm__ (#bhw"[%1] = %0;\n\t" \ 125 __asm__ (#bhw"[%1] = %0;\n\t" \
126 : /* no outputs */ \ 126 : /* no outputs */ \
127 :"d" (x),"a" (__ptr(p)) : "memory") 127 :"d" (x), "a" (__ptr(p)) : "memory")
128 128
129#define get_user(x, ptr) \ 129#define get_user(x, ptr) \
130({ \ 130({ \
@@ -136,10 +136,10 @@ static inline int bad_user_access_length(void)
136 BUILD_BUG_ON(ptr_size >= 8); \ 136 BUILD_BUG_ON(ptr_size >= 8); \
137 switch (ptr_size) { \ 137 switch (ptr_size) { \
138 case 1: \ 138 case 1: \
139 __get_user_asm(_val, _p, B,(Z)); \ 139 __get_user_asm(_val, _p, B, (Z)); \
140 break; \ 140 break; \
141 case 2: \ 141 case 2: \
142 __get_user_asm(_val, _p, W,(Z)); \ 142 __get_user_asm(_val, _p, W, (Z)); \
143 break; \ 143 break; \
144 case 4: \ 144 case 4: \
145 __get_user_asm(_val, _p, , ); \ 145 __get_user_asm(_val, _p, , ); \
@@ -147,11 +147,11 @@ static inline int bad_user_access_length(void)
147 } \ 147 } \
148 } else \ 148 } else \
149 _err = -EFAULT; \ 149 _err = -EFAULT; \
150 x = (typeof(*(ptr)))_val; \ 150 x = (__force typeof(*(ptr)))_val; \
151 _err; \ 151 _err; \
152}) 152})
153 153
154#define __get_user(x,p) get_user(x,p) 154#define __get_user(x, p) get_user(x, p)
155 155
156#define __get_user_bad() (bad_user_access_length(), (-EFAULT)) 156#define __get_user_bad() (bad_user_access_length(), (-EFAULT))
157 157
@@ -168,10 +168,10 @@ static inline int bad_user_access_length(void)
168#define __copy_to_user_inatomic __copy_to_user 168#define __copy_to_user_inatomic __copy_to_user
169#define __copy_from_user_inatomic __copy_from_user 169#define __copy_from_user_inatomic __copy_from_user
170 170
171#define copy_to_user_ret(to,from,n,retval) ({ if (copy_to_user(to,from,n))\ 171#define copy_to_user_ret(to, from, n, retval) ({ if (copy_to_user(to, from, n))\
172 return retval; }) 172 return retval; })
173 173
174#define copy_from_user_ret(to,from,n,retval) ({ if (copy_from_user(to,from,n))\ 174#define copy_from_user_ret(to, from, n, retval) ({ if (copy_from_user(to, from, n))\
175 return retval; }) 175 return retval; })
176 176
177static inline unsigned long __must_check 177static inline unsigned long __must_check
diff --git a/arch/cris/include/asm/uaccess.h b/arch/cris/include/asm/uaccess.h
index 914540801c5e..a21344ab8616 100644
--- a/arch/cris/include/asm/uaccess.h
+++ b/arch/cris/include/asm/uaccess.h
@@ -47,12 +47,13 @@
47#define get_fs() (current_thread_info()->addr_limit) 47#define get_fs() (current_thread_info()->addr_limit)
48#define set_fs(x) (current_thread_info()->addr_limit = (x)) 48#define set_fs(x) (current_thread_info()->addr_limit = (x))
49 49
50#define segment_eq(a,b) ((a).seg == (b).seg) 50#define segment_eq(a, b) ((a).seg == (b).seg)
51 51
52#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS)) 52#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
53#define __user_ok(addr,size) (((size) <= TASK_SIZE)&&((addr) <= TASK_SIZE-(size))) 53#define __user_ok(addr, size) \
54#define __access_ok(addr,size) (__kernel_ok || __user_ok((addr),(size))) 54 (((size) <= TASK_SIZE)&&((addr) <= TASK_SIZE-(size)))
55#define access_ok(type,addr,size) __access_ok((unsigned long)(addr),(size)) 55#define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size)))
56#define access_ok(type, addr, size) __access_ok((unsigned long)(addr), (size))
56 57
57#include <arch/uaccess.h> 58#include <arch/uaccess.h>
58 59
@@ -92,56 +93,56 @@ struct exception_table_entry
92 * CRIS, we can just do these as direct assignments. (Of course, the 93 * CRIS, we can just do these as direct assignments. (Of course, the
93 * exception handling means that it's no longer "just"...) 94 * exception handling means that it's no longer "just"...)
94 */ 95 */
95#define get_user(x,ptr) \ 96#define get_user(x, ptr) \
96 __get_user_check((x),(ptr),sizeof(*(ptr))) 97 __get_user_check((x), (ptr), sizeof(*(ptr)))
97#define put_user(x,ptr) \ 98#define put_user(x, ptr) \
98 __put_user_check((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr))) 99 __put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
99 100
100#define __get_user(x,ptr) \ 101#define __get_user(x, ptr) \
101 __get_user_nocheck((x),(ptr),sizeof(*(ptr))) 102 __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
102#define __put_user(x,ptr) \ 103#define __put_user(x, ptr) \
103 __put_user_nocheck((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr))) 104 __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
104 105
105extern long __put_user_bad(void); 106extern long __put_user_bad(void);
106 107
107#define __put_user_size(x,ptr,size,retval) \ 108#define __put_user_size(x, ptr, size, retval) \
108do { \ 109do { \
109 retval = 0; \ 110 retval = 0; \
110 switch (size) { \ 111 switch (size) { \
111 case 1: __put_user_asm(x,ptr,retval,"move.b"); break; \ 112 case 1: __put_user_asm(x, ptr, retval, "move.b"); break; \
112 case 2: __put_user_asm(x,ptr,retval,"move.w"); break; \ 113 case 2: __put_user_asm(x, ptr, retval, "move.w"); break; \
113 case 4: __put_user_asm(x,ptr,retval,"move.d"); break; \ 114 case 4: __put_user_asm(x, ptr, retval, "move.d"); break; \
114 case 8: __put_user_asm_64(x,ptr,retval); break; \ 115 case 8: __put_user_asm_64(x, ptr, retval); break; \
115 default: __put_user_bad(); \ 116 default: __put_user_bad(); \
116 } \ 117 } \
117} while (0) 118} while (0)
118 119
119#define __get_user_size(x,ptr,size,retval) \ 120#define __get_user_size(x, ptr, size, retval) \
120do { \ 121do { \
121 retval = 0; \ 122 retval = 0; \
122 switch (size) { \ 123 switch (size) { \
123 case 1: __get_user_asm(x,ptr,retval,"move.b"); break; \ 124 case 1: __get_user_asm(x, ptr, retval, "move.b"); break; \
124 case 2: __get_user_asm(x,ptr,retval,"move.w"); break; \ 125 case 2: __get_user_asm(x, ptr, retval, "move.w"); break; \
125 case 4: __get_user_asm(x,ptr,retval,"move.d"); break; \ 126 case 4: __get_user_asm(x, ptr, retval, "move.d"); break; \
126 case 8: __get_user_asm_64(x,ptr,retval); break; \ 127 case 8: __get_user_asm_64(x, ptr, retval); break; \
127 default: (x) = __get_user_bad(); \ 128 default: (x) = __get_user_bad(); \
128 } \ 129 } \
129} while (0) 130} while (0)
130 131
131#define __put_user_nocheck(x,ptr,size) \ 132#define __put_user_nocheck(x, ptr, size) \
132({ \ 133({ \
133 long __pu_err; \ 134 long __pu_err; \
134 __put_user_size((x),(ptr),(size),__pu_err); \ 135 __put_user_size((x), (ptr), (size), __pu_err); \
135 __pu_err; \ 136 __pu_err; \
136}) 137})
137 138
138#define __put_user_check(x,ptr,size) \ 139#define __put_user_check(x, ptr, size) \
139({ \ 140({ \
140 long __pu_err = -EFAULT; \ 141 long __pu_err = -EFAULT; \
141 __typeof__(*(ptr)) *__pu_addr = (ptr); \ 142 __typeof__(*(ptr)) *__pu_addr = (ptr); \
142 if (access_ok(VERIFY_WRITE,__pu_addr,size)) \ 143 if (access_ok(VERIFY_WRITE, __pu_addr, size)) \
143 __put_user_size((x),__pu_addr,(size),__pu_err); \ 144 __put_user_size((x), __pu_addr, (size), __pu_err); \
144 __pu_err; \ 145 __pu_err; \
145}) 146})
146 147
147struct __large_struct { unsigned long buf[100]; }; 148struct __large_struct { unsigned long buf[100]; };
@@ -149,21 +150,21 @@ struct __large_struct { unsigned long buf[100]; };
149 150
150 151
151 152
152#define __get_user_nocheck(x,ptr,size) \ 153#define __get_user_nocheck(x, ptr, size) \
153({ \ 154({ \
154 long __gu_err, __gu_val; \ 155 long __gu_err, __gu_val; \
155 __get_user_size(__gu_val,(ptr),(size),__gu_err); \ 156 __get_user_size(__gu_val, (ptr), (size), __gu_err); \
156 (x) = (__typeof__(*(ptr)))__gu_val; \ 157 (x) = (__force __typeof__(*(ptr)))__gu_val; \
157 __gu_err; \ 158 __gu_err; \
158}) 159})
159 160
160#define __get_user_check(x,ptr,size) \ 161#define __get_user_check(x, ptr, size) \
161({ \ 162({ \
162 long __gu_err = -EFAULT, __gu_val = 0; \ 163 long __gu_err = -EFAULT, __gu_val = 0; \
163 const __typeof__(*(ptr)) *__gu_addr = (ptr); \ 164 const __typeof__(*(ptr)) *__gu_addr = (ptr); \
164 if (access_ok(VERIFY_READ,__gu_addr,size)) \ 165 if (access_ok(VERIFY_READ, __gu_addr, size)) \
165 __get_user_size(__gu_val,__gu_addr,(size),__gu_err); \ 166 __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
166 (x) = (__typeof__(*(ptr)))__gu_val; \ 167 (x) = (__force __typeof__(*(ptr)))__gu_val; \
167 __gu_err; \ 168 __gu_err; \
168}) 169})
169 170
@@ -180,7 +181,7 @@ static inline unsigned long
180__generic_copy_to_user(void __user *to, const void *from, unsigned long n) 181__generic_copy_to_user(void __user *to, const void *from, unsigned long n)
181{ 182{
182 if (access_ok(VERIFY_WRITE, to, n)) 183 if (access_ok(VERIFY_WRITE, to, n))
183 return __copy_user(to,from,n); 184 return __copy_user(to, from, n);
184 return n; 185 return n;
185} 186}
186 187
@@ -188,7 +189,7 @@ static inline unsigned long
188__generic_copy_from_user(void *to, const void __user *from, unsigned long n) 189__generic_copy_from_user(void *to, const void __user *from, unsigned long n)
189{ 190{
190 if (access_ok(VERIFY_READ, from, n)) 191 if (access_ok(VERIFY_READ, from, n))
191 return __copy_user_zeroing(to,from,n); 192 return __copy_user_zeroing(to, from, n);
192 return n; 193 return n;
193} 194}
194 195
@@ -196,7 +197,7 @@ static inline unsigned long
196__generic_clear_user(void __user *to, unsigned long n) 197__generic_clear_user(void __user *to, unsigned long n)
197{ 198{
198 if (access_ok(VERIFY_WRITE, to, n)) 199 if (access_ok(VERIFY_WRITE, to, n))
199 return __do_clear_user(to,n); 200 return __do_clear_user(to, n);
200 return n; 201 return n;
201} 202}
202 203
@@ -373,29 +374,31 @@ static inline unsigned long
373__generic_copy_from_user_nocheck(void *to, const void __user *from, 374__generic_copy_from_user_nocheck(void *to, const void __user *from,
374 unsigned long n) 375 unsigned long n)
375{ 376{
376 return __copy_user_zeroing(to,from,n); 377 return __copy_user_zeroing(to, from, n);
377} 378}
378 379
379static inline unsigned long 380static inline unsigned long
380__generic_copy_to_user_nocheck(void __user *to, const void *from, 381__generic_copy_to_user_nocheck(void __user *to, const void *from,
381 unsigned long n) 382 unsigned long n)
382{ 383{
383 return __copy_user(to,from,n); 384 return __copy_user(to, from, n);
384} 385}
385 386
386static inline unsigned long 387static inline unsigned long
387__generic_clear_user_nocheck(void __user *to, unsigned long n) 388__generic_clear_user_nocheck(void __user *to, unsigned long n)
388{ 389{
389 return __do_clear_user(to,n); 390 return __do_clear_user(to, n);
390} 391}
391 392
392/* without checking */ 393/* without checking */
393 394
394#define __copy_to_user(to,from,n) __generic_copy_to_user_nocheck((to),(from),(n)) 395#define __copy_to_user(to, from, n) \
395#define __copy_from_user(to,from,n) __generic_copy_from_user_nocheck((to),(from),(n)) 396 __generic_copy_to_user_nocheck((to), (from), (n))
397#define __copy_from_user(to, from, n) \
398 __generic_copy_from_user_nocheck((to), (from), (n))
396#define __copy_to_user_inatomic __copy_to_user 399#define __copy_to_user_inatomic __copy_to_user
397#define __copy_from_user_inatomic __copy_from_user 400#define __copy_from_user_inatomic __copy_from_user
398#define __clear_user(to,n) __generic_clear_user_nocheck((to),(n)) 401#define __clear_user(to, n) __generic_clear_user_nocheck((to), (n))
399 402
400#define strlen_user(str) strnlen_user((str), 0x7ffffffe) 403#define strlen_user(str) strnlen_user((str), 0x7ffffffe)
401 404
diff --git a/arch/frv/include/asm/segment.h b/arch/frv/include/asm/segment.h
index a2320a4a0042..4377c89a57f5 100644
--- a/arch/frv/include/asm/segment.h
+++ b/arch/frv/include/asm/segment.h
@@ -31,7 +31,7 @@ typedef struct {
31 31
32#define get_ds() (KERNEL_DS) 32#define get_ds() (KERNEL_DS)
33#define get_fs() (__current_thread_info->addr_limit) 33#define get_fs() (__current_thread_info->addr_limit)
34#define segment_eq(a,b) ((a).seg == (b).seg) 34#define segment_eq(a, b) ((a).seg == (b).seg)
35#define __kernel_ds_p() segment_eq(get_fs(), KERNEL_DS) 35#define __kernel_ds_p() segment_eq(get_fs(), KERNEL_DS)
36#define get_addr_limit() (get_fs().seg) 36#define get_addr_limit() (get_fs().seg)
37 37
diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
index 103bedc59644..4f3fb6ccbf21 100644
--- a/arch/ia64/include/asm/uaccess.h
+++ b/arch/ia64/include/asm/uaccess.h
@@ -169,10 +169,11 @@ do { \
169 (err) = ia64_getreg(_IA64_REG_R8); \ 169 (err) = ia64_getreg(_IA64_REG_R8); \
170 (val) = ia64_getreg(_IA64_REG_R9); \ 170 (val) = ia64_getreg(_IA64_REG_R9); \
171} while (0) 171} while (0)
172# define __put_user_size(val, addr, n, err) \ 172# define __put_user_size(val, addr, n, err) \
173do { \ 173do { \
174 __st_user("__ex_table", (unsigned long) addr, n, RELOC_TYPE, (unsigned long) (val)); \ 174 __st_user("__ex_table", (unsigned long) addr, n, RELOC_TYPE, \
175 (err) = ia64_getreg(_IA64_REG_R8); \ 175 (__force unsigned long) (val)); \
176 (err) = ia64_getreg(_IA64_REG_R8); \
176} while (0) 177} while (0)
177#endif /* !ASM_SUPPORTED */ 178#endif /* !ASM_SUPPORTED */
178 179
@@ -197,7 +198,7 @@ extern void __get_user_unknown (void);
197 case 8: __get_user_size(__gu_val, __gu_ptr, 8, __gu_err); break; \ 198 case 8: __get_user_size(__gu_val, __gu_ptr, 8, __gu_err); break; \
198 default: __get_user_unknown(); break; \ 199 default: __get_user_unknown(); break; \
199 } \ 200 } \
200 (x) = (__typeof__(*(__gu_ptr))) __gu_val; \ 201 (x) = (__force __typeof__(*(__gu_ptr))) __gu_val; \
201 __gu_err; \ 202 __gu_err; \
202}) 203})
203 204
diff --git a/arch/m32r/include/asm/uaccess.h b/arch/m32r/include/asm/uaccess.h
index 84fe7ba53035..71adff209405 100644
--- a/arch/m32r/include/asm/uaccess.h
+++ b/arch/m32r/include/asm/uaccess.h
@@ -54,7 +54,7 @@ static inline void set_fs(mm_segment_t s)
54 54
55#endif /* not CONFIG_MMU */ 55#endif /* not CONFIG_MMU */
56 56
57#define segment_eq(a,b) ((a).seg == (b).seg) 57#define segment_eq(a, b) ((a).seg == (b).seg)
58 58
59#define __addr_ok(addr) \ 59#define __addr_ok(addr) \
60 ((unsigned long)(addr) < (current_thread_info()->addr_limit.seg)) 60 ((unsigned long)(addr) < (current_thread_info()->addr_limit.seg))
@@ -68,7 +68,7 @@ static inline void set_fs(mm_segment_t s)
68 * 68 *
69 * This needs 33-bit arithmetic. We have a carry... 69 * This needs 33-bit arithmetic. We have a carry...
70 */ 70 */
71#define __range_ok(addr,size) ({ \ 71#define __range_ok(addr, size) ({ \
72 unsigned long flag, roksum; \ 72 unsigned long flag, roksum; \
73 __chk_user_ptr(addr); \ 73 __chk_user_ptr(addr); \
74 asm ( \ 74 asm ( \
@@ -103,7 +103,7 @@ static inline void set_fs(mm_segment_t s)
103 * this function, memory access functions may still return -EFAULT. 103 * this function, memory access functions may still return -EFAULT.
104 */ 104 */
105#ifdef CONFIG_MMU 105#ifdef CONFIG_MMU
106#define access_ok(type,addr,size) (likely(__range_ok(addr,size) == 0)) 106#define access_ok(type, addr, size) (likely(__range_ok(addr, size) == 0))
107#else 107#else
108static inline int access_ok(int type, const void *addr, unsigned long size) 108static inline int access_ok(int type, const void *addr, unsigned long size)
109{ 109{
@@ -167,8 +167,8 @@ extern int fixup_exception(struct pt_regs *regs);
167 * Returns zero on success, or -EFAULT on error. 167 * Returns zero on success, or -EFAULT on error.
168 * On error, the variable @x is set to zero. 168 * On error, the variable @x is set to zero.
169 */ 169 */
170#define get_user(x,ptr) \ 170#define get_user(x, ptr) \
171 __get_user_check((x),(ptr),sizeof(*(ptr))) 171 __get_user_check((x), (ptr), sizeof(*(ptr)))
172 172
173/** 173/**
174 * put_user: - Write a simple value into user space. 174 * put_user: - Write a simple value into user space.
@@ -186,8 +186,8 @@ extern int fixup_exception(struct pt_regs *regs);
186 * 186 *
187 * Returns zero on success, or -EFAULT on error. 187 * Returns zero on success, or -EFAULT on error.
188 */ 188 */
189#define put_user(x,ptr) \ 189#define put_user(x, ptr) \
190 __put_user_check((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr))) 190 __put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
191 191
192/** 192/**
193 * __get_user: - Get a simple variable from user space, with less checking. 193 * __get_user: - Get a simple variable from user space, with less checking.
@@ -209,41 +209,41 @@ extern int fixup_exception(struct pt_regs *regs);
209 * Returns zero on success, or -EFAULT on error. 209 * Returns zero on success, or -EFAULT on error.
210 * On error, the variable @x is set to zero. 210 * On error, the variable @x is set to zero.
211 */ 211 */
212#define __get_user(x,ptr) \ 212#define __get_user(x, ptr) \
213 __get_user_nocheck((x),(ptr),sizeof(*(ptr))) 213 __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
214 214
215#define __get_user_nocheck(x,ptr,size) \ 215#define __get_user_nocheck(x, ptr, size) \
216({ \ 216({ \
217 long __gu_err = 0; \ 217 long __gu_err = 0; \
218 unsigned long __gu_val; \ 218 unsigned long __gu_val; \
219 might_fault(); \ 219 might_fault(); \
220 __get_user_size(__gu_val,(ptr),(size),__gu_err); \ 220 __get_user_size(__gu_val, (ptr), (size), __gu_err); \
221 (x) = (__typeof__(*(ptr)))__gu_val; \ 221 (x) = (__force __typeof__(*(ptr)))__gu_val; \
222 __gu_err; \ 222 __gu_err; \
223}) 223})
224 224
225#define __get_user_check(x,ptr,size) \ 225#define __get_user_check(x, ptr, size) \
226({ \ 226({ \
227 long __gu_err = -EFAULT; \ 227 long __gu_err = -EFAULT; \
228 unsigned long __gu_val = 0; \ 228 unsigned long __gu_val = 0; \
229 const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ 229 const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
230 might_fault(); \ 230 might_fault(); \
231 if (access_ok(VERIFY_READ,__gu_addr,size)) \ 231 if (access_ok(VERIFY_READ, __gu_addr, size)) \
232 __get_user_size(__gu_val,__gu_addr,(size),__gu_err); \ 232 __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
233 (x) = (__typeof__(*(ptr)))__gu_val; \ 233 (x) = (__force __typeof__(*(ptr)))__gu_val; \
234 __gu_err; \ 234 __gu_err; \
235}) 235})
236 236
237extern long __get_user_bad(void); 237extern long __get_user_bad(void);
238 238
239#define __get_user_size(x,ptr,size,retval) \ 239#define __get_user_size(x, ptr, size, retval) \
240do { \ 240do { \
241 retval = 0; \ 241 retval = 0; \
242 __chk_user_ptr(ptr); \ 242 __chk_user_ptr(ptr); \
243 switch (size) { \ 243 switch (size) { \
244 case 1: __get_user_asm(x,ptr,retval,"ub"); break; \ 244 case 1: __get_user_asm(x, ptr, retval, "ub"); break; \
245 case 2: __get_user_asm(x,ptr,retval,"uh"); break; \ 245 case 2: __get_user_asm(x, ptr, retval, "uh"); break; \
246 case 4: __get_user_asm(x,ptr,retval,""); break; \ 246 case 4: __get_user_asm(x, ptr, retval, ""); break; \
247 default: (x) = __get_user_bad(); \ 247 default: (x) = __get_user_bad(); \
248 } \ 248 } \
249} while (0) 249} while (0)
@@ -288,26 +288,26 @@ do { \
288 * 288 *
289 * Returns zero on success, or -EFAULT on error. 289 * Returns zero on success, or -EFAULT on error.
290 */ 290 */
291#define __put_user(x,ptr) \ 291#define __put_user(x, ptr) \
292 __put_user_nocheck((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr))) 292 __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
293 293
294 294
295#define __put_user_nocheck(x,ptr,size) \ 295#define __put_user_nocheck(x, ptr, size) \
296({ \ 296({ \
297 long __pu_err; \ 297 long __pu_err; \
298 might_fault(); \ 298 might_fault(); \
299 __put_user_size((x),(ptr),(size),__pu_err); \ 299 __put_user_size((x), (ptr), (size), __pu_err); \
300 __pu_err; \ 300 __pu_err; \
301}) 301})
302 302
303 303
304#define __put_user_check(x,ptr,size) \ 304#define __put_user_check(x, ptr, size) \
305({ \ 305({ \
306 long __pu_err = -EFAULT; \ 306 long __pu_err = -EFAULT; \
307 __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ 307 __typeof__(*(ptr)) __user *__pu_addr = (ptr); \
308 might_fault(); \ 308 might_fault(); \
309 if (access_ok(VERIFY_WRITE,__pu_addr,size)) \ 309 if (access_ok(VERIFY_WRITE, __pu_addr, size)) \
310 __put_user_size((x),__pu_addr,(size),__pu_err); \ 310 __put_user_size((x), __pu_addr, (size), __pu_err); \
311 __pu_err; \ 311 __pu_err; \
312}) 312})
313 313
@@ -366,15 +366,15 @@ do { \
366 366
367extern void __put_user_bad(void); 367extern void __put_user_bad(void);
368 368
369#define __put_user_size(x,ptr,size,retval) \ 369#define __put_user_size(x, ptr, size, retval) \
370do { \ 370do { \
371 retval = 0; \ 371 retval = 0; \
372 __chk_user_ptr(ptr); \ 372 __chk_user_ptr(ptr); \
373 switch (size) { \ 373 switch (size) { \
374 case 1: __put_user_asm(x,ptr,retval,"b"); break; \ 374 case 1: __put_user_asm(x, ptr, retval, "b"); break; \
375 case 2: __put_user_asm(x,ptr,retval,"h"); break; \ 375 case 2: __put_user_asm(x, ptr, retval, "h"); break; \
376 case 4: __put_user_asm(x,ptr,retval,""); break; \ 376 case 4: __put_user_asm(x, ptr, retval, ""); break; \
377 case 8: __put_user_u64((__typeof__(*ptr))(x),ptr,retval); break;\ 377 case 8: __put_user_u64((__typeof__(*ptr))(x), ptr, retval); break;\
378 default: __put_user_bad(); \ 378 default: __put_user_bad(); \
379 } \ 379 } \
380} while (0) 380} while (0)
@@ -421,7 +421,7 @@ struct __large_struct { unsigned long buf[100]; };
421 421
422/* Generic arbitrary sized copy. */ 422/* Generic arbitrary sized copy. */
423/* Return the number of bytes NOT copied. */ 423/* Return the number of bytes NOT copied. */
424#define __copy_user(to,from,size) \ 424#define __copy_user(to, from, size) \
425do { \ 425do { \
426 unsigned long __dst, __src, __c; \ 426 unsigned long __dst, __src, __c; \
427 __asm__ __volatile__ ( \ 427 __asm__ __volatile__ ( \
@@ -478,7 +478,7 @@ do { \
478 : "r14", "memory"); \ 478 : "r14", "memory"); \
479} while (0) 479} while (0)
480 480
481#define __copy_user_zeroing(to,from,size) \ 481#define __copy_user_zeroing(to, from, size) \
482do { \ 482do { \
483 unsigned long __dst, __src, __c; \ 483 unsigned long __dst, __src, __c; \
484 __asm__ __volatile__ ( \ 484 __asm__ __volatile__ ( \
@@ -548,14 +548,14 @@ do { \
548static inline unsigned long __generic_copy_from_user_nocheck(void *to, 548static inline unsigned long __generic_copy_from_user_nocheck(void *to,
549 const void __user *from, unsigned long n) 549 const void __user *from, unsigned long n)
550{ 550{
551 __copy_user_zeroing(to,from,n); 551 __copy_user_zeroing(to, from, n);
552 return n; 552 return n;
553} 553}
554 554
555static inline unsigned long __generic_copy_to_user_nocheck(void __user *to, 555static inline unsigned long __generic_copy_to_user_nocheck(void __user *to,
556 const void *from, unsigned long n) 556 const void *from, unsigned long n)
557{ 557{
558 __copy_user(to,from,n); 558 __copy_user(to, from, n);
559 return n; 559 return n;
560} 560}
561 561
@@ -576,8 +576,8 @@ unsigned long __generic_copy_from_user(void *, const void __user *, unsigned lon
576 * Returns number of bytes that could not be copied. 576 * Returns number of bytes that could not be copied.
577 * On success, this will be zero. 577 * On success, this will be zero.
578 */ 578 */
579#define __copy_to_user(to,from,n) \ 579#define __copy_to_user(to, from, n) \
580 __generic_copy_to_user_nocheck((to),(from),(n)) 580 __generic_copy_to_user_nocheck((to), (from), (n))
581 581
582#define __copy_to_user_inatomic __copy_to_user 582#define __copy_to_user_inatomic __copy_to_user
583#define __copy_from_user_inatomic __copy_from_user 583#define __copy_from_user_inatomic __copy_from_user
@@ -595,10 +595,10 @@ unsigned long __generic_copy_from_user(void *, const void __user *, unsigned lon
595 * Returns number of bytes that could not be copied. 595 * Returns number of bytes that could not be copied.
596 * On success, this will be zero. 596 * On success, this will be zero.
597 */ 597 */
598#define copy_to_user(to,from,n) \ 598#define copy_to_user(to, from, n) \
599({ \ 599({ \
600 might_fault(); \ 600 might_fault(); \
601 __generic_copy_to_user((to),(from),(n)); \ 601 __generic_copy_to_user((to), (from), (n)); \
602}) 602})
603 603
604/** 604/**
@@ -617,8 +617,8 @@ unsigned long __generic_copy_from_user(void *, const void __user *, unsigned lon
617 * If some data could not be copied, this function will pad the copied 617 * If some data could not be copied, this function will pad the copied
618 * data to the requested size using zero bytes. 618 * data to the requested size using zero bytes.
619 */ 619 */
620#define __copy_from_user(to,from,n) \ 620#define __copy_from_user(to, from, n) \
621 __generic_copy_from_user_nocheck((to),(from),(n)) 621 __generic_copy_from_user_nocheck((to), (from), (n))
622 622
623/** 623/**
624 * copy_from_user: - Copy a block of data from user space. 624 * copy_from_user: - Copy a block of data from user space.
@@ -636,10 +636,10 @@ unsigned long __generic_copy_from_user(void *, const void __user *, unsigned lon
636 * If some data could not be copied, this function will pad the copied 636 * If some data could not be copied, this function will pad the copied
637 * data to the requested size using zero bytes. 637 * data to the requested size using zero bytes.
638 */ 638 */
639#define copy_from_user(to,from,n) \ 639#define copy_from_user(to, from, n) \
640({ \ 640({ \
641 might_fault(); \ 641 might_fault(); \
642 __generic_copy_from_user((to),(from),(n)); \ 642 __generic_copy_from_user((to), (from), (n)); \
643}) 643})
644 644
645long __must_check strncpy_from_user(char *dst, const char __user *src, 645long __must_check strncpy_from_user(char *dst, const char __user *src,
diff --git a/arch/m68k/include/asm/segment.h b/arch/m68k/include/asm/segment.h
index 0fa80e97ed2d..98216b8111f0 100644
--- a/arch/m68k/include/asm/segment.h
+++ b/arch/m68k/include/asm/segment.h
@@ -58,7 +58,7 @@ static inline mm_segment_t get_ds(void)
58#define set_fs(x) (current_thread_info()->addr_limit = (x)) 58#define set_fs(x) (current_thread_info()->addr_limit = (x))
59#endif 59#endif
60 60
61#define segment_eq(a,b) ((a).seg == (b).seg) 61#define segment_eq(a, b) ((a).seg == (b).seg)
62 62
63#endif /* __ASSEMBLY__ */ 63#endif /* __ASSEMBLY__ */
64 64
diff --git a/arch/m68k/include/asm/uaccess_mm.h b/arch/m68k/include/asm/uaccess_mm.h
index 15901db435b9..d228601b3afc 100644
--- a/arch/m68k/include/asm/uaccess_mm.h
+++ b/arch/m68k/include/asm/uaccess_mm.h
@@ -128,25 +128,25 @@ asm volatile ("\n" \
128#define put_user(x, ptr) __put_user(x, ptr) 128#define put_user(x, ptr) __put_user(x, ptr)
129 129
130 130
131#define __get_user_asm(res, x, ptr, type, bwl, reg, err) ({ \ 131#define __get_user_asm(res, x, ptr, type, bwl, reg, err) ({ \
132 type __gu_val; \ 132 type __gu_val; \
133 asm volatile ("\n" \ 133 asm volatile ("\n" \
134 "1: "MOVES"."#bwl" %2,%1\n" \ 134 "1: "MOVES"."#bwl" %2,%1\n" \
135 "2:\n" \ 135 "2:\n" \
136 " .section .fixup,\"ax\"\n" \ 136 " .section .fixup,\"ax\"\n" \
137 " .even\n" \ 137 " .even\n" \
138 "10: move.l %3,%0\n" \ 138 "10: move.l %3,%0\n" \
139 " sub.l %1,%1\n" \ 139 " sub.l %1,%1\n" \
140 " jra 2b\n" \ 140 " jra 2b\n" \
141 " .previous\n" \ 141 " .previous\n" \
142 "\n" \ 142 "\n" \
143 " .section __ex_table,\"a\"\n" \ 143 " .section __ex_table,\"a\"\n" \
144 " .align 4\n" \ 144 " .align 4\n" \
145 " .long 1b,10b\n" \ 145 " .long 1b,10b\n" \
146 " .previous" \ 146 " .previous" \
147 : "+d" (res), "=&" #reg (__gu_val) \ 147 : "+d" (res), "=&" #reg (__gu_val) \
148 : "m" (*(ptr)), "i" (err)); \ 148 : "m" (*(ptr)), "i" (err)); \
149 (x) = (typeof(*(ptr)))(unsigned long)__gu_val; \ 149 (x) = (__force typeof(*(ptr)))(__force unsigned long)__gu_val; \
150}) 150})
151 151
152#define __get_user(x, ptr) \ 152#define __get_user(x, ptr) \
@@ -188,7 +188,7 @@ asm volatile ("\n" \
188 "+a" (__gu_ptr) \ 188 "+a" (__gu_ptr) \
189 : "i" (-EFAULT) \ 189 : "i" (-EFAULT) \
190 : "memory"); \ 190 : "memory"); \
191 (x) = (typeof(*(ptr)))__gu_val; \ 191 (x) = (__force typeof(*(ptr)))__gu_val; \
192 break; \ 192 break; \
193 } */ \ 193 } */ \
194 default: \ 194 default: \
diff --git a/arch/metag/include/asm/uaccess.h b/arch/metag/include/asm/uaccess.h
index 0748b0a97986..8282cbce7e39 100644
--- a/arch/metag/include/asm/uaccess.h
+++ b/arch/metag/include/asm/uaccess.h
@@ -107,18 +107,23 @@ extern long __put_user_asm_w(unsigned int x, void __user *addr);
107extern long __put_user_asm_d(unsigned int x, void __user *addr); 107extern long __put_user_asm_d(unsigned int x, void __user *addr);
108extern long __put_user_asm_l(unsigned long long x, void __user *addr); 108extern long __put_user_asm_l(unsigned long long x, void __user *addr);
109 109
110#define __put_user_size(x, ptr, size, retval) \ 110#define __put_user_size(x, ptr, size, retval) \
111do { \ 111do { \
112 retval = 0; \ 112 retval = 0; \
113 switch (size) { \ 113 switch (size) { \
114 case 1: \ 114 case 1: \
115 retval = __put_user_asm_b((unsigned int)x, ptr); break; \ 115 retval = __put_user_asm_b((__force unsigned int)x, ptr);\
116 break; \
116 case 2: \ 117 case 2: \
117 retval = __put_user_asm_w((unsigned int)x, ptr); break; \ 118 retval = __put_user_asm_w((__force unsigned int)x, ptr);\
119 break; \
118 case 4: \ 120 case 4: \
119 retval = __put_user_asm_d((unsigned int)x, ptr); break; \ 121 retval = __put_user_asm_d((__force unsigned int)x, ptr);\
122 break; \
120 case 8: \ 123 case 8: \
121 retval = __put_user_asm_l((unsigned long long)x, ptr); break; \ 124 retval = __put_user_asm_l((__force unsigned long long)x,\
125 ptr); \
126 break; \
122 default: \ 127 default: \
123 __put_user_bad(); \ 128 __put_user_bad(); \
124 } \ 129 } \
@@ -135,7 +140,7 @@ extern long __get_user_bad(void);
135({ \ 140({ \
136 long __gu_err, __gu_val; \ 141 long __gu_err, __gu_val; \
137 __get_user_size(__gu_val, (ptr), (size), __gu_err); \ 142 __get_user_size(__gu_val, (ptr), (size), __gu_err); \
138 (x) = (__typeof__(*(ptr)))__gu_val; \ 143 (x) = (__force __typeof__(*(ptr)))__gu_val; \
139 __gu_err; \ 144 __gu_err; \
140}) 145})
141 146
@@ -145,7 +150,7 @@ extern long __get_user_bad(void);
145 const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ 150 const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
146 if (access_ok(VERIFY_READ, __gu_addr, size)) \ 151 if (access_ok(VERIFY_READ, __gu_addr, size)) \
147 __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ 152 __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
148 (x) = (__typeof__(*(ptr)))__gu_val; \ 153 (x) = (__force __typeof__(*(ptr)))__gu_val; \
149 __gu_err; \ 154 __gu_err; \
150}) 155})
151 156
diff --git a/arch/openrisc/include/asm/uaccess.h b/arch/openrisc/include/asm/uaccess.h
index ab2e7a198a4c..a6bd07ca3d6c 100644
--- a/arch/openrisc/include/asm/uaccess.h
+++ b/arch/openrisc/include/asm/uaccess.h
@@ -192,7 +192,7 @@ struct __large_struct {
192({ \ 192({ \
193 long __gu_err, __gu_val; \ 193 long __gu_err, __gu_val; \
194 __get_user_size(__gu_val, (ptr), (size), __gu_err); \ 194 __get_user_size(__gu_val, (ptr), (size), __gu_err); \
195 (x) = (__typeof__(*(ptr)))__gu_val; \ 195 (x) = (__force __typeof__(*(ptr)))__gu_val; \
196 __gu_err; \ 196 __gu_err; \
197}) 197})
198 198
@@ -202,7 +202,7 @@ struct __large_struct {
202 const __typeof__(*(ptr)) * __gu_addr = (ptr); \ 202 const __typeof__(*(ptr)) * __gu_addr = (ptr); \
203 if (access_ok(VERIFY_READ, __gu_addr, size)) \ 203 if (access_ok(VERIFY_READ, __gu_addr, size)) \
204 __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ 204 __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
205 (x) = (__typeof__(*(ptr)))__gu_val; \ 205 (x) = (__force __typeof__(*(ptr)))__gu_val; \
206 __gu_err; \ 206 __gu_err; \
207}) 207})
208 208
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index a5cb070b54bf..0abdd4c607ed 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -17,7 +17,7 @@
17#define KERNEL_DS ((mm_segment_t){0}) 17#define KERNEL_DS ((mm_segment_t){0})
18#define USER_DS ((mm_segment_t){1}) 18#define USER_DS ((mm_segment_t){1})
19 19
20#define segment_eq(a,b) ((a).seg == (b).seg) 20#define segment_eq(a, b) ((a).seg == (b).seg)
21 21
22#define get_ds() (KERNEL_DS) 22#define get_ds() (KERNEL_DS)
23#define get_fs() (current_thread_info()->addr_limit) 23#define get_fs() (current_thread_info()->addr_limit)
@@ -42,14 +42,14 @@ static inline long access_ok(int type, const void __user * addr,
42#if !defined(CONFIG_64BIT) 42#if !defined(CONFIG_64BIT)
43#define LDD_KERNEL(ptr) BUILD_BUG() 43#define LDD_KERNEL(ptr) BUILD_BUG()
44#define LDD_USER(ptr) BUILD_BUG() 44#define LDD_USER(ptr) BUILD_BUG()
45#define STD_KERNEL(x, ptr) __put_kernel_asm64(x,ptr) 45#define STD_KERNEL(x, ptr) __put_kernel_asm64(x, ptr)
46#define STD_USER(x, ptr) __put_user_asm64(x,ptr) 46#define STD_USER(x, ptr) __put_user_asm64(x, ptr)
47#define ASM_WORD_INSN ".word\t" 47#define ASM_WORD_INSN ".word\t"
48#else 48#else
49#define LDD_KERNEL(ptr) __get_kernel_asm("ldd",ptr) 49#define LDD_KERNEL(ptr) __get_kernel_asm("ldd", ptr)
50#define LDD_USER(ptr) __get_user_asm("ldd",ptr) 50#define LDD_USER(ptr) __get_user_asm("ldd", ptr)
51#define STD_KERNEL(x, ptr) __put_kernel_asm("std",x,ptr) 51#define STD_KERNEL(x, ptr) __put_kernel_asm("std", x, ptr)
52#define STD_USER(x, ptr) __put_user_asm("std",x,ptr) 52#define STD_USER(x, ptr) __put_user_asm("std", x, ptr)
53#define ASM_WORD_INSN ".dword\t" 53#define ASM_WORD_INSN ".dword\t"
54#endif 54#endif
55 55
@@ -80,68 +80,68 @@ struct exception_data {
80 unsigned long fault_addr; 80 unsigned long fault_addr;
81}; 81};
82 82
83#define __get_user(x,ptr) \ 83#define __get_user(x, ptr) \
84({ \ 84({ \
85 register long __gu_err __asm__ ("r8") = 0; \ 85 register long __gu_err __asm__ ("r8") = 0; \
86 register long __gu_val __asm__ ("r9") = 0; \ 86 register long __gu_val __asm__ ("r9") = 0; \
87 \ 87 \
88 if (segment_eq(get_fs(),KERNEL_DS)) { \ 88 if (segment_eq(get_fs(), KERNEL_DS)) { \
89 switch (sizeof(*(ptr))) { \ 89 switch (sizeof(*(ptr))) { \
90 case 1: __get_kernel_asm("ldb",ptr); break; \ 90 case 1: __get_kernel_asm("ldb", ptr); break; \
91 case 2: __get_kernel_asm("ldh",ptr); break; \ 91 case 2: __get_kernel_asm("ldh", ptr); break; \
92 case 4: __get_kernel_asm("ldw",ptr); break; \ 92 case 4: __get_kernel_asm("ldw", ptr); break; \
93 case 8: LDD_KERNEL(ptr); break; \ 93 case 8: LDD_KERNEL(ptr); break; \
94 default: BUILD_BUG(); break; \ 94 default: BUILD_BUG(); break; \
95 } \ 95 } \
96 } \ 96 } \
97 else { \ 97 else { \
98 switch (sizeof(*(ptr))) { \ 98 switch (sizeof(*(ptr))) { \
99 case 1: __get_user_asm("ldb",ptr); break; \ 99 case 1: __get_user_asm("ldb", ptr); break; \
100 case 2: __get_user_asm("ldh",ptr); break; \ 100 case 2: __get_user_asm("ldh", ptr); break; \
101 case 4: __get_user_asm("ldw",ptr); break; \ 101 case 4: __get_user_asm("ldw", ptr); break; \
102 case 8: LDD_USER(ptr); break; \ 102 case 8: LDD_USER(ptr); break; \
103 default: BUILD_BUG(); break; \ 103 default: BUILD_BUG(); break; \
104 } \ 104 } \
105 } \ 105 } \
106 \ 106 \
107 (x) = (__typeof__(*(ptr))) __gu_val; \ 107 (x) = (__force __typeof__(*(ptr))) __gu_val; \
108 __gu_err; \ 108 __gu_err; \
109}) 109})
110 110
111#define __get_kernel_asm(ldx,ptr) \ 111#define __get_kernel_asm(ldx, ptr) \
112 __asm__("\n1:\t" ldx "\t0(%2),%0\n\t" \ 112 __asm__("\n1:\t" ldx "\t0(%2),%0\n\t" \
113 ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\ 113 ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\
114 : "=r"(__gu_val), "=r"(__gu_err) \ 114 : "=r"(__gu_val), "=r"(__gu_err) \
115 : "r"(ptr), "1"(__gu_err) \ 115 : "r"(ptr), "1"(__gu_err) \
116 : "r1"); 116 : "r1");
117 117
118#define __get_user_asm(ldx,ptr) \ 118#define __get_user_asm(ldx, ptr) \
119 __asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n\t" \ 119 __asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n\t" \
120 ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_get_user_skip_1)\ 120 ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\
121 : "=r"(__gu_val), "=r"(__gu_err) \ 121 : "=r"(__gu_val), "=r"(__gu_err) \
122 : "r"(ptr), "1"(__gu_err) \ 122 : "r"(ptr), "1"(__gu_err) \
123 : "r1"); 123 : "r1");
124 124
125#define __put_user(x,ptr) \ 125#define __put_user(x, ptr) \
126({ \ 126({ \
127 register long __pu_err __asm__ ("r8") = 0; \ 127 register long __pu_err __asm__ ("r8") = 0; \
128 __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x); \ 128 __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x); \
129 \ 129 \
130 if (segment_eq(get_fs(),KERNEL_DS)) { \ 130 if (segment_eq(get_fs(), KERNEL_DS)) { \
131 switch (sizeof(*(ptr))) { \ 131 switch (sizeof(*(ptr))) { \
132 case 1: __put_kernel_asm("stb",__x,ptr); break; \ 132 case 1: __put_kernel_asm("stb", __x, ptr); break; \
133 case 2: __put_kernel_asm("sth",__x,ptr); break; \ 133 case 2: __put_kernel_asm("sth", __x, ptr); break; \
134 case 4: __put_kernel_asm("stw",__x,ptr); break; \ 134 case 4: __put_kernel_asm("stw", __x, ptr); break; \
135 case 8: STD_KERNEL(__x,ptr); break; \ 135 case 8: STD_KERNEL(__x, ptr); break; \
136 default: BUILD_BUG(); break; \ 136 default: BUILD_BUG(); break; \
137 } \ 137 } \
138 } \ 138 } \
139 else { \ 139 else { \
140 switch (sizeof(*(ptr))) { \ 140 switch (sizeof(*(ptr))) { \
141 case 1: __put_user_asm("stb",__x,ptr); break; \ 141 case 1: __put_user_asm("stb", __x, ptr); break; \
142 case 2: __put_user_asm("sth",__x,ptr); break; \ 142 case 2: __put_user_asm("sth", __x, ptr); break; \
143 case 4: __put_user_asm("stw",__x,ptr); break; \ 143 case 4: __put_user_asm("stw", __x, ptr); break; \
144 case 8: STD_USER(__x,ptr); break; \ 144 case 8: STD_USER(__x, ptr); break; \
145 default: BUILD_BUG(); break; \ 145 default: BUILD_BUG(); break; \
146 } \ 146 } \
147 } \ 147 } \
@@ -159,18 +159,18 @@ struct exception_data {
159 * r8/r9 are already listed as err/val. 159 * r8/r9 are already listed as err/val.
160 */ 160 */
161 161
162#define __put_kernel_asm(stx,x,ptr) \ 162#define __put_kernel_asm(stx, x, ptr) \
163 __asm__ __volatile__ ( \ 163 __asm__ __volatile__ ( \
164 "\n1:\t" stx "\t%2,0(%1)\n\t" \ 164 "\n1:\t" stx "\t%2,0(%1)\n\t" \
165 ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_1)\ 165 ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_1)\
166 : "=r"(__pu_err) \ 166 : "=r"(__pu_err) \
167 : "r"(ptr), "r"(x), "0"(__pu_err) \ 167 : "r"(ptr), "r"(x), "0"(__pu_err) \
168 : "r1") 168 : "r1")
169 169
170#define __put_user_asm(stx,x,ptr) \ 170#define __put_user_asm(stx, x, ptr) \
171 __asm__ __volatile__ ( \ 171 __asm__ __volatile__ ( \
172 "\n1:\t" stx "\t%2,0(%%sr3,%1)\n\t" \ 172 "\n1:\t" stx "\t%2,0(%%sr3,%1)\n\t" \
173 ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_1)\ 173 ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_1)\
174 : "=r"(__pu_err) \ 174 : "=r"(__pu_err) \
175 : "r"(ptr), "r"(x), "0"(__pu_err) \ 175 : "r"(ptr), "r"(x), "0"(__pu_err) \
176 : "r1") 176 : "r1")
@@ -178,23 +178,23 @@ struct exception_data {
178 178
179#if !defined(CONFIG_64BIT) 179#if !defined(CONFIG_64BIT)
180 180
181#define __put_kernel_asm64(__val,ptr) do { \ 181#define __put_kernel_asm64(__val, ptr) do { \
182 __asm__ __volatile__ ( \ 182 __asm__ __volatile__ ( \
183 "\n1:\tstw %2,0(%1)" \ 183 "\n1:\tstw %2,0(%1)" \
184 "\n2:\tstw %R2,4(%1)\n\t" \ 184 "\n2:\tstw %R2,4(%1)\n\t" \
185 ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\ 185 ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_2)\
186 ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\ 186 ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_put_user_skip_1)\
187 : "=r"(__pu_err) \ 187 : "=r"(__pu_err) \
188 : "r"(ptr), "r"(__val), "0"(__pu_err) \ 188 : "r"(ptr), "r"(__val), "0"(__pu_err) \
189 : "r1"); \ 189 : "r1"); \
190} while (0) 190} while (0)
191 191
192#define __put_user_asm64(__val,ptr) do { \ 192#define __put_user_asm64(__val, ptr) do { \
193 __asm__ __volatile__ ( \ 193 __asm__ __volatile__ ( \
194 "\n1:\tstw %2,0(%%sr3,%1)" \ 194 "\n1:\tstw %2,0(%%sr3,%1)" \
195 "\n2:\tstw %R2,4(%%sr3,%1)\n\t" \ 195 "\n2:\tstw %R2,4(%%sr3,%1)\n\t" \
196 ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\ 196 ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_2)\
197 ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\ 197 ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_put_user_skip_1)\
198 : "=r"(__pu_err) \ 198 : "=r"(__pu_err) \
199 : "r"(ptr), "r"(__val), "0"(__pu_err) \ 199 : "r"(ptr), "r"(__val), "0"(__pu_err) \
200 : "r1"); \ 200 : "r1"); \
@@ -211,8 +211,8 @@ extern unsigned long lcopy_to_user(void __user *, const void *, unsigned long);
211extern unsigned long lcopy_from_user(void *, const void __user *, unsigned long); 211extern unsigned long lcopy_from_user(void *, const void __user *, unsigned long);
212extern unsigned long lcopy_in_user(void __user *, const void __user *, unsigned long); 212extern unsigned long lcopy_in_user(void __user *, const void __user *, unsigned long);
213extern long strncpy_from_user(char *, const char __user *, long); 213extern long strncpy_from_user(char *, const char __user *, long);
214extern unsigned lclear_user(void __user *,unsigned long); 214extern unsigned lclear_user(void __user *, unsigned long);
215extern long lstrnlen_user(const char __user *,long); 215extern long lstrnlen_user(const char __user *, long);
216/* 216/*
217 * Complex access routines -- macros 217 * Complex access routines -- macros
218 */ 218 */
diff --git a/arch/sh/include/asm/segment.h b/arch/sh/include/asm/segment.h
index 5e2725f4ac49..ff795d3a6909 100644
--- a/arch/sh/include/asm/segment.h
+++ b/arch/sh/include/asm/segment.h
@@ -23,7 +23,7 @@ typedef struct {
23#define USER_DS KERNEL_DS 23#define USER_DS KERNEL_DS
24#endif 24#endif
25 25
26#define segment_eq(a,b) ((a).seg == (b).seg) 26#define segment_eq(a, b) ((a).seg == (b).seg)
27 27
28#define get_ds() (KERNEL_DS) 28#define get_ds() (KERNEL_DS)
29 29
diff --git a/arch/sh/include/asm/uaccess.h b/arch/sh/include/asm/uaccess.h
index 9486376605f4..a49635c51266 100644
--- a/arch/sh/include/asm/uaccess.h
+++ b/arch/sh/include/asm/uaccess.h
@@ -60,7 +60,7 @@ struct __large_struct { unsigned long buf[100]; };
60 const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ 60 const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
61 __chk_user_ptr(ptr); \ 61 __chk_user_ptr(ptr); \
62 __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ 62 __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
63 (x) = (__typeof__(*(ptr)))__gu_val; \ 63 (x) = (__force __typeof__(*(ptr)))__gu_val; \
64 __gu_err; \ 64 __gu_err; \
65}) 65})
66 66
@@ -71,7 +71,7 @@ struct __large_struct { unsigned long buf[100]; };
71 const __typeof__(*(ptr)) *__gu_addr = (ptr); \ 71 const __typeof__(*(ptr)) *__gu_addr = (ptr); \
72 if (likely(access_ok(VERIFY_READ, __gu_addr, (size)))) \ 72 if (likely(access_ok(VERIFY_READ, __gu_addr, (size)))) \
73 __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ 73 __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
74 (x) = (__typeof__(*(ptr)))__gu_val; \ 74 (x) = (__force __typeof__(*(ptr)))__gu_val; \
75 __gu_err; \ 75 __gu_err; \
76}) 76})
77 77
diff --git a/arch/sh/include/asm/uaccess_64.h b/arch/sh/include/asm/uaccess_64.h
index 2e07e0f40c6a..c01376c76b86 100644
--- a/arch/sh/include/asm/uaccess_64.h
+++ b/arch/sh/include/asm/uaccess_64.h
@@ -59,19 +59,19 @@ do { \
59 switch (size) { \ 59 switch (size) { \
60 case 1: \ 60 case 1: \
61 retval = __put_user_asm_b((void *)&x, \ 61 retval = __put_user_asm_b((void *)&x, \
62 (long)ptr); \ 62 (__force long)ptr); \
63 break; \ 63 break; \
64 case 2: \ 64 case 2: \
65 retval = __put_user_asm_w((void *)&x, \ 65 retval = __put_user_asm_w((void *)&x, \
66 (long)ptr); \ 66 (__force long)ptr); \
67 break; \ 67 break; \
68 case 4: \ 68 case 4: \
69 retval = __put_user_asm_l((void *)&x, \ 69 retval = __put_user_asm_l((void *)&x, \
70 (long)ptr); \ 70 (__force long)ptr); \
71 break; \ 71 break; \
72 case 8: \ 72 case 8: \
73 retval = __put_user_asm_q((void *)&x, \ 73 retval = __put_user_asm_q((void *)&x, \
74 (long)ptr); \ 74 (__force long)ptr); \
75 break; \ 75 break; \
76 default: \ 76 default: \
77 __put_user_unknown(); \ 77 __put_user_unknown(); \
diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
index 9634d086fc56..64ee103dc29d 100644
--- a/arch/sparc/include/asm/uaccess_32.h
+++ b/arch/sparc/include/asm/uaccess_32.h
@@ -37,7 +37,7 @@
37#define get_fs() (current->thread.current_ds) 37#define get_fs() (current->thread.current_ds)
38#define set_fs(val) ((current->thread.current_ds) = (val)) 38#define set_fs(val) ((current->thread.current_ds) = (val))
39 39
40#define segment_eq(a,b) ((a).seg == (b).seg) 40#define segment_eq(a, b) ((a).seg == (b).seg)
41 41
42/* We have there a nice not-mapped page at PAGE_OFFSET - PAGE_SIZE, so that this test 42/* We have there a nice not-mapped page at PAGE_OFFSET - PAGE_SIZE, so that this test
43 * can be fairly lightweight. 43 * can be fairly lightweight.
@@ -46,8 +46,8 @@
46 */ 46 */
47#define __user_ok(addr, size) ({ (void)(size); (addr) < STACK_TOP; }) 47#define __user_ok(addr, size) ({ (void)(size); (addr) < STACK_TOP; })
48#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS)) 48#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
49#define __access_ok(addr,size) (__user_ok((addr) & get_fs().seg,(size))) 49#define __access_ok(addr, size) (__user_ok((addr) & get_fs().seg, (size)))
50#define access_ok(type, addr, size) \ 50#define access_ok(type, addr, size) \
51 ({ (void)(type); __access_ok((unsigned long)(addr), size); }) 51 ({ (void)(type); __access_ok((unsigned long)(addr), size); })
52 52
53/* 53/*
@@ -91,158 +91,221 @@ void __ret_efault(void);
91 * of a performance impact. Thus we have a few rather ugly macros here, 91 * of a performance impact. Thus we have a few rather ugly macros here,
92 * and hide all the ugliness from the user. 92 * and hide all the ugliness from the user.
93 */ 93 */
94#define put_user(x,ptr) ({ \ 94#define put_user(x, ptr) ({ \
95unsigned long __pu_addr = (unsigned long)(ptr); \ 95 unsigned long __pu_addr = (unsigned long)(ptr); \
96__chk_user_ptr(ptr); \ 96 __chk_user_ptr(ptr); \
97__put_user_check((__typeof__(*(ptr)))(x),__pu_addr,sizeof(*(ptr))); }) 97 __put_user_check((__typeof__(*(ptr)))(x), __pu_addr, sizeof(*(ptr))); \
98 98})
99#define get_user(x,ptr) ({ \ 99
100unsigned long __gu_addr = (unsigned long)(ptr); \ 100#define get_user(x, ptr) ({ \
101__chk_user_ptr(ptr); \ 101 unsigned long __gu_addr = (unsigned long)(ptr); \
102__get_user_check((x),__gu_addr,sizeof(*(ptr)),__typeof__(*(ptr))); }) 102 __chk_user_ptr(ptr); \
103 __get_user_check((x), __gu_addr, sizeof(*(ptr)), __typeof__(*(ptr))); \
104})
103 105
104/* 106/*
105 * The "__xxx" versions do not do address space checking, useful when 107 * The "__xxx" versions do not do address space checking, useful when
106 * doing multiple accesses to the same area (the user has to do the 108 * doing multiple accesses to the same area (the user has to do the
107 * checks by hand with "access_ok()") 109 * checks by hand with "access_ok()")
108 */ 110 */
109#define __put_user(x,ptr) __put_user_nocheck((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr))) 111#define __put_user(x, ptr) \
110#define __get_user(x,ptr) __get_user_nocheck((x),(ptr),sizeof(*(ptr)),__typeof__(*(ptr))) 112 __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
113#define __get_user(x, ptr) \
114 __get_user_nocheck((x), (ptr), sizeof(*(ptr)), __typeof__(*(ptr)))
111 115
112struct __large_struct { unsigned long buf[100]; }; 116struct __large_struct { unsigned long buf[100]; };
113#define __m(x) ((struct __large_struct __user *)(x)) 117#define __m(x) ((struct __large_struct __user *)(x))
114 118
115#define __put_user_check(x,addr,size) ({ \ 119#define __put_user_check(x, addr, size) ({ \
116register int __pu_ret; \ 120 register int __pu_ret; \
117if (__access_ok(addr,size)) { \ 121 if (__access_ok(addr, size)) { \
118switch (size) { \ 122 switch (size) { \
119case 1: __put_user_asm(x,b,addr,__pu_ret); break; \ 123 case 1: \
120case 2: __put_user_asm(x,h,addr,__pu_ret); break; \ 124 __put_user_asm(x, b, addr, __pu_ret); \
121case 4: __put_user_asm(x,,addr,__pu_ret); break; \ 125 break; \
122case 8: __put_user_asm(x,d,addr,__pu_ret); break; \ 126 case 2: \
123default: __pu_ret = __put_user_bad(); break; \ 127 __put_user_asm(x, h, addr, __pu_ret); \
124} } else { __pu_ret = -EFAULT; } __pu_ret; }) 128 break; \
125 129 case 4: \
126#define __put_user_nocheck(x,addr,size) ({ \ 130 __put_user_asm(x, , addr, __pu_ret); \
127register int __pu_ret; \ 131 break; \
128switch (size) { \ 132 case 8: \
129case 1: __put_user_asm(x,b,addr,__pu_ret); break; \ 133 __put_user_asm(x, d, addr, __pu_ret); \
130case 2: __put_user_asm(x,h,addr,__pu_ret); break; \ 134 break; \
131case 4: __put_user_asm(x,,addr,__pu_ret); break; \ 135 default: \
132case 8: __put_user_asm(x,d,addr,__pu_ret); break; \ 136 __pu_ret = __put_user_bad(); \
133default: __pu_ret = __put_user_bad(); break; \ 137 break; \
134} __pu_ret; }) 138 } \
135 139 } else { \
136#define __put_user_asm(x,size,addr,ret) \ 140 __pu_ret = -EFAULT; \
141 } \
142 __pu_ret; \
143})
144
145#define __put_user_nocheck(x, addr, size) ({ \
146 register int __pu_ret; \
147 switch (size) { \
148 case 1: __put_user_asm(x, b, addr, __pu_ret); break; \
149 case 2: __put_user_asm(x, h, addr, __pu_ret); break; \
150 case 4: __put_user_asm(x, , addr, __pu_ret); break; \
151 case 8: __put_user_asm(x, d, addr, __pu_ret); break; \
152 default: __pu_ret = __put_user_bad(); break; \
153 } \
154 __pu_ret; \
155})
156
157#define __put_user_asm(x, size, addr, ret) \
137__asm__ __volatile__( \ 158__asm__ __volatile__( \
138 "/* Put user asm, inline. */\n" \ 159 "/* Put user asm, inline. */\n" \
139"1:\t" "st"#size " %1, %2\n\t" \ 160 "1:\t" "st"#size " %1, %2\n\t" \
140 "clr %0\n" \ 161 "clr %0\n" \
141"2:\n\n\t" \ 162 "2:\n\n\t" \
142 ".section .fixup,#alloc,#execinstr\n\t" \ 163 ".section .fixup,#alloc,#execinstr\n\t" \
143 ".align 4\n" \ 164 ".align 4\n" \
144"3:\n\t" \ 165 "3:\n\t" \
145 "b 2b\n\t" \ 166 "b 2b\n\t" \
146 " mov %3, %0\n\t" \ 167 " mov %3, %0\n\t" \
147 ".previous\n\n\t" \ 168 ".previous\n\n\t" \
148 ".section __ex_table,#alloc\n\t" \ 169 ".section __ex_table,#alloc\n\t" \
149 ".align 4\n\t" \ 170 ".align 4\n\t" \
150 ".word 1b, 3b\n\t" \ 171 ".word 1b, 3b\n\t" \
151 ".previous\n\n\t" \ 172 ".previous\n\n\t" \
152 : "=&r" (ret) : "r" (x), "m" (*__m(addr)), \ 173 : "=&r" (ret) : "r" (x), "m" (*__m(addr)), \
153 "i" (-EFAULT)) 174 "i" (-EFAULT))
154 175
155int __put_user_bad(void); 176int __put_user_bad(void);
156 177
157#define __get_user_check(x,addr,size,type) ({ \ 178#define __get_user_check(x, addr, size, type) ({ \
158register int __gu_ret; \ 179 register int __gu_ret; \
159register unsigned long __gu_val; \ 180 register unsigned long __gu_val; \
160if (__access_ok(addr,size)) { \ 181 if (__access_ok(addr, size)) { \
161switch (size) { \ 182 switch (size) { \
162case 1: __get_user_asm(__gu_val,ub,addr,__gu_ret); break; \ 183 case 1: \
163case 2: __get_user_asm(__gu_val,uh,addr,__gu_ret); break; \ 184 __get_user_asm(__gu_val, ub, addr, __gu_ret); \
164case 4: __get_user_asm(__gu_val,,addr,__gu_ret); break; \ 185 break; \
165case 8: __get_user_asm(__gu_val,d,addr,__gu_ret); break; \ 186 case 2: \
166default: __gu_val = 0; __gu_ret = __get_user_bad(); break; \ 187 __get_user_asm(__gu_val, uh, addr, __gu_ret); \
167} } else { __gu_val = 0; __gu_ret = -EFAULT; } x = (type) __gu_val; __gu_ret; }) 188 break; \
168 189 case 4: \
169#define __get_user_check_ret(x,addr,size,type,retval) ({ \ 190 __get_user_asm(__gu_val, , addr, __gu_ret); \
170register unsigned long __gu_val __asm__ ("l1"); \ 191 break; \
171if (__access_ok(addr,size)) { \ 192 case 8: \
172switch (size) { \ 193 __get_user_asm(__gu_val, d, addr, __gu_ret); \
173case 1: __get_user_asm_ret(__gu_val,ub,addr,retval); break; \ 194 break; \
174case 2: __get_user_asm_ret(__gu_val,uh,addr,retval); break; \ 195 default: \
175case 4: __get_user_asm_ret(__gu_val,,addr,retval); break; \ 196 __gu_val = 0; \
176case 8: __get_user_asm_ret(__gu_val,d,addr,retval); break; \ 197 __gu_ret = __get_user_bad(); \
177default: if (__get_user_bad()) return retval; \ 198 break; \
178} x = (type) __gu_val; } else return retval; }) 199 } \
179 200 } else { \
180#define __get_user_nocheck(x,addr,size,type) ({ \ 201 __gu_val = 0; \
181register int __gu_ret; \ 202 __gu_ret = -EFAULT; \
182register unsigned long __gu_val; \ 203 } \
183switch (size) { \ 204 x = (__force type) __gu_val; \
184case 1: __get_user_asm(__gu_val,ub,addr,__gu_ret); break; \ 205 __gu_ret; \
185case 2: __get_user_asm(__gu_val,uh,addr,__gu_ret); break; \ 206})
186case 4: __get_user_asm(__gu_val,,addr,__gu_ret); break; \ 207
187case 8: __get_user_asm(__gu_val,d,addr,__gu_ret); break; \ 208#define __get_user_check_ret(x, addr, size, type, retval) ({ \
188default: __gu_val = 0; __gu_ret = __get_user_bad(); break; \ 209 register unsigned long __gu_val __asm__ ("l1"); \
189} x = (type) __gu_val; __gu_ret; }) 210 if (__access_ok(addr, size)) { \
190 211 switch (size) { \
191#define __get_user_nocheck_ret(x,addr,size,type,retval) ({ \ 212 case 1: \
192register unsigned long __gu_val __asm__ ("l1"); \ 213 __get_user_asm_ret(__gu_val, ub, addr, retval); \
193switch (size) { \ 214 break; \
194case 1: __get_user_asm_ret(__gu_val,ub,addr,retval); break; \ 215 case 2: \
195case 2: __get_user_asm_ret(__gu_val,uh,addr,retval); break; \ 216 __get_user_asm_ret(__gu_val, uh, addr, retval); \
196case 4: __get_user_asm_ret(__gu_val,,addr,retval); break; \ 217 break; \
197case 8: __get_user_asm_ret(__gu_val,d,addr,retval); break; \ 218 case 4: \
198default: if (__get_user_bad()) return retval; \ 219 __get_user_asm_ret(__gu_val, , addr, retval); \
199} x = (type) __gu_val; }) 220 break; \
200 221 case 8: \
201#define __get_user_asm(x,size,addr,ret) \ 222 __get_user_asm_ret(__gu_val, d, addr, retval); \
223 break; \
224 default: \
225 if (__get_user_bad()) \
226 return retval; \
227 } \
228 x = (__force type) __gu_val; \
229 } else \
230 return retval; \
231})
232
233#define __get_user_nocheck(x, addr, size, type) ({ \
234 register int __gu_ret; \
235 register unsigned long __gu_val; \
236 switch (size) { \
237 case 1: __get_user_asm(__gu_val, ub, addr, __gu_ret); break; \
238 case 2: __get_user_asm(__gu_val, uh, addr, __gu_ret); break; \
239 case 4: __get_user_asm(__gu_val, , addr, __gu_ret); break; \
240 case 8: __get_user_asm(__gu_val, d, addr, __gu_ret); break; \
241 default: \
242 __gu_val = 0; \
243 __gu_ret = __get_user_bad(); \
244 break; \
245 } \
246 x = (__force type) __gu_val; \
247 __gu_ret; \
248})
249
250#define __get_user_nocheck_ret(x, addr, size, type, retval) ({ \
251 register unsigned long __gu_val __asm__ ("l1"); \
252 switch (size) { \
253 case 1: __get_user_asm_ret(__gu_val, ub, addr, retval); break; \
254 case 2: __get_user_asm_ret(__gu_val, uh, addr, retval); break; \
255 case 4: __get_user_asm_ret(__gu_val, , addr, retval); break; \
256 case 8: __get_user_asm_ret(__gu_val, d, addr, retval); break; \
257 default: \
258 if (__get_user_bad()) \
259 return retval; \
260 } \
261 x = (__force type) __gu_val; \
262})
263
264#define __get_user_asm(x, size, addr, ret) \
202__asm__ __volatile__( \ 265__asm__ __volatile__( \
203 "/* Get user asm, inline. */\n" \ 266 "/* Get user asm, inline. */\n" \
204"1:\t" "ld"#size " %2, %1\n\t" \ 267 "1:\t" "ld"#size " %2, %1\n\t" \
205 "clr %0\n" \ 268 "clr %0\n" \
206"2:\n\n\t" \ 269 "2:\n\n\t" \
207 ".section .fixup,#alloc,#execinstr\n\t" \ 270 ".section .fixup,#alloc,#execinstr\n\t" \
208 ".align 4\n" \ 271 ".align 4\n" \
209"3:\n\t" \ 272 "3:\n\t" \
210 "clr %1\n\t" \ 273 "clr %1\n\t" \
211 "b 2b\n\t" \ 274 "b 2b\n\t" \
212 " mov %3, %0\n\n\t" \ 275 " mov %3, %0\n\n\t" \
213 ".previous\n\t" \ 276 ".previous\n\t" \
214 ".section __ex_table,#alloc\n\t" \ 277 ".section __ex_table,#alloc\n\t" \
215 ".align 4\n\t" \ 278 ".align 4\n\t" \
216 ".word 1b, 3b\n\n\t" \ 279 ".word 1b, 3b\n\n\t" \
217 ".previous\n\t" \ 280 ".previous\n\t" \
218 : "=&r" (ret), "=&r" (x) : "m" (*__m(addr)), \ 281 : "=&r" (ret), "=&r" (x) : "m" (*__m(addr)), \
219 "i" (-EFAULT)) 282 "i" (-EFAULT))
220 283
221#define __get_user_asm_ret(x,size,addr,retval) \ 284#define __get_user_asm_ret(x, size, addr, retval) \
222if (__builtin_constant_p(retval) && retval == -EFAULT) \ 285if (__builtin_constant_p(retval) && retval == -EFAULT) \
223__asm__ __volatile__( \ 286 __asm__ __volatile__( \
224 "/* Get user asm ret, inline. */\n" \ 287 "/* Get user asm ret, inline. */\n" \
225"1:\t" "ld"#size " %1, %0\n\n\t" \ 288 "1:\t" "ld"#size " %1, %0\n\n\t" \
226 ".section __ex_table,#alloc\n\t" \ 289 ".section __ex_table,#alloc\n\t" \
227 ".align 4\n\t" \ 290 ".align 4\n\t" \
228 ".word 1b,__ret_efault\n\n\t" \ 291 ".word 1b,__ret_efault\n\n\t" \
229 ".previous\n\t" \ 292 ".previous\n\t" \
230 : "=&r" (x) : "m" (*__m(addr))); \ 293 : "=&r" (x) : "m" (*__m(addr))); \
231else \ 294else \
232__asm__ __volatile__( \ 295 __asm__ __volatile__( \
233 "/* Get user asm ret, inline. */\n" \ 296 "/* Get user asm ret, inline. */\n" \
234"1:\t" "ld"#size " %1, %0\n\n\t" \ 297 "1:\t" "ld"#size " %1, %0\n\n\t" \
235 ".section .fixup,#alloc,#execinstr\n\t" \ 298 ".section .fixup,#alloc,#execinstr\n\t" \
236 ".align 4\n" \ 299 ".align 4\n" \
237"3:\n\t" \ 300 "3:\n\t" \
238 "ret\n\t" \ 301 "ret\n\t" \
239 " restore %%g0, %2, %%o0\n\n\t" \ 302 " restore %%g0, %2, %%o0\n\n\t" \
240 ".previous\n\t" \ 303 ".previous\n\t" \
241 ".section __ex_table,#alloc\n\t" \ 304 ".section __ex_table,#alloc\n\t" \
242 ".align 4\n\t" \ 305 ".align 4\n\t" \
243 ".word 1b, 3b\n\n\t" \ 306 ".word 1b, 3b\n\n\t" \
244 ".previous\n\t" \ 307 ".previous\n\t" \
245 : "=&r" (x) : "m" (*__m(addr)), "i" (retval)) 308 : "=&r" (x) : "m" (*__m(addr)), "i" (retval))
246 309
247int __get_user_bad(void); 310int __get_user_bad(void);
248 311
diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
index c990a5e577f0..a35194b7dba0 100644
--- a/arch/sparc/include/asm/uaccess_64.h
+++ b/arch/sparc/include/asm/uaccess_64.h
@@ -41,11 +41,11 @@
41#define get_fs() ((mm_segment_t){(current_thread_info()->current_ds)}) 41#define get_fs() ((mm_segment_t){(current_thread_info()->current_ds)})
42#define get_ds() (KERNEL_DS) 42#define get_ds() (KERNEL_DS)
43 43
44#define segment_eq(a,b) ((a).seg == (b).seg) 44#define segment_eq(a, b) ((a).seg == (b).seg)
45 45
46#define set_fs(val) \ 46#define set_fs(val) \
47do { \ 47do { \
48 current_thread_info()->current_ds =(val).seg; \ 48 current_thread_info()->current_ds = (val).seg; \
49 __asm__ __volatile__ ("wr %%g0, %0, %%asi" : : "r" ((val).seg)); \ 49 __asm__ __volatile__ ("wr %%g0, %0, %%asi" : : "r" ((val).seg)); \
50} while(0) 50} while(0)
51 51
@@ -88,121 +88,135 @@ void __retl_efault(void);
88 * of a performance impact. Thus we have a few rather ugly macros here, 88 * of a performance impact. Thus we have a few rather ugly macros here,
89 * and hide all the ugliness from the user. 89 * and hide all the ugliness from the user.
90 */ 90 */
91#define put_user(x,ptr) ({ \ 91#define put_user(x, ptr) ({ \
92unsigned long __pu_addr = (unsigned long)(ptr); \ 92 unsigned long __pu_addr = (unsigned long)(ptr); \
93__chk_user_ptr(ptr); \ 93 __chk_user_ptr(ptr); \
94__put_user_nocheck((__typeof__(*(ptr)))(x),__pu_addr,sizeof(*(ptr))); }) 94 __put_user_nocheck((__typeof__(*(ptr)))(x), __pu_addr, sizeof(*(ptr)));\
95})
95 96
96#define get_user(x,ptr) ({ \ 97#define get_user(x, ptr) ({ \
97unsigned long __gu_addr = (unsigned long)(ptr); \ 98 unsigned long __gu_addr = (unsigned long)(ptr); \
98__chk_user_ptr(ptr); \ 99 __chk_user_ptr(ptr); \
99__get_user_nocheck((x),__gu_addr,sizeof(*(ptr)),__typeof__(*(ptr))); }) 100 __get_user_nocheck((x), __gu_addr, sizeof(*(ptr)), __typeof__(*(ptr)));\
101})
100 102
101#define __put_user(x,ptr) put_user(x,ptr) 103#define __put_user(x, ptr) put_user(x, ptr)
102#define __get_user(x,ptr) get_user(x,ptr) 104#define __get_user(x, ptr) get_user(x, ptr)
103 105
104struct __large_struct { unsigned long buf[100]; }; 106struct __large_struct { unsigned long buf[100]; };
105#define __m(x) ((struct __large_struct *)(x)) 107#define __m(x) ((struct __large_struct *)(x))
106 108
107#define __put_user_nocheck(data,addr,size) ({ \ 109#define __put_user_nocheck(data, addr, size) ({ \
108register int __pu_ret; \ 110 register int __pu_ret; \
109switch (size) { \ 111 switch (size) { \
110case 1: __put_user_asm(data,b,addr,__pu_ret); break; \ 112 case 1: __put_user_asm(data, b, addr, __pu_ret); break; \
111case 2: __put_user_asm(data,h,addr,__pu_ret); break; \ 113 case 2: __put_user_asm(data, h, addr, __pu_ret); break; \
112case 4: __put_user_asm(data,w,addr,__pu_ret); break; \ 114 case 4: __put_user_asm(data, w, addr, __pu_ret); break; \
113case 8: __put_user_asm(data,x,addr,__pu_ret); break; \ 115 case 8: __put_user_asm(data, x, addr, __pu_ret); break; \
114default: __pu_ret = __put_user_bad(); break; \ 116 default: __pu_ret = __put_user_bad(); break; \
115} __pu_ret; }) 117 } \
116 118 __pu_ret; \
117#define __put_user_asm(x,size,addr,ret) \ 119})
120
121#define __put_user_asm(x, size, addr, ret) \
118__asm__ __volatile__( \ 122__asm__ __volatile__( \
119 "/* Put user asm, inline. */\n" \ 123 "/* Put user asm, inline. */\n" \
120"1:\t" "st"#size "a %1, [%2] %%asi\n\t" \ 124 "1:\t" "st"#size "a %1, [%2] %%asi\n\t" \
121 "clr %0\n" \ 125 "clr %0\n" \
122"2:\n\n\t" \ 126 "2:\n\n\t" \
123 ".section .fixup,#alloc,#execinstr\n\t" \ 127 ".section .fixup,#alloc,#execinstr\n\t" \
124 ".align 4\n" \ 128 ".align 4\n" \
125"3:\n\t" \ 129 "3:\n\t" \
126 "sethi %%hi(2b), %0\n\t" \ 130 "sethi %%hi(2b), %0\n\t" \
127 "jmpl %0 + %%lo(2b), %%g0\n\t" \ 131 "jmpl %0 + %%lo(2b), %%g0\n\t" \
128 " mov %3, %0\n\n\t" \ 132 " mov %3, %0\n\n\t" \
129 ".previous\n\t" \ 133 ".previous\n\t" \
130 ".section __ex_table,\"a\"\n\t" \ 134 ".section __ex_table,\"a\"\n\t" \
131 ".align 4\n\t" \ 135 ".align 4\n\t" \
132 ".word 1b, 3b\n\t" \ 136 ".word 1b, 3b\n\t" \
133 ".previous\n\n\t" \ 137 ".previous\n\n\t" \
134 : "=r" (ret) : "r" (x), "r" (__m(addr)), \ 138 : "=r" (ret) : "r" (x), "r" (__m(addr)), \
135 "i" (-EFAULT)) 139 "i" (-EFAULT))
136 140
137int __put_user_bad(void); 141int __put_user_bad(void);
138 142
139#define __get_user_nocheck(data,addr,size,type) ({ \ 143#define __get_user_nocheck(data, addr, size, type) ({ \
140register int __gu_ret; \ 144 register int __gu_ret; \
141register unsigned long __gu_val; \ 145 register unsigned long __gu_val; \
142switch (size) { \ 146 switch (size) { \
143case 1: __get_user_asm(__gu_val,ub,addr,__gu_ret); break; \ 147 case 1: __get_user_asm(__gu_val, ub, addr, __gu_ret); break; \
144case 2: __get_user_asm(__gu_val,uh,addr,__gu_ret); break; \ 148 case 2: __get_user_asm(__gu_val, uh, addr, __gu_ret); break; \
145case 4: __get_user_asm(__gu_val,uw,addr,__gu_ret); break; \ 149 case 4: __get_user_asm(__gu_val, uw, addr, __gu_ret); break; \
146case 8: __get_user_asm(__gu_val,x,addr,__gu_ret); break; \ 150 case 8: __get_user_asm(__gu_val, x, addr, __gu_ret); break; \
147default: __gu_val = 0; __gu_ret = __get_user_bad(); break; \ 151 default: \
148} data = (type) __gu_val; __gu_ret; }) 152 __gu_val = 0; \
149 153 __gu_ret = __get_user_bad(); \
150#define __get_user_nocheck_ret(data,addr,size,type,retval) ({ \ 154 break; \
151register unsigned long __gu_val __asm__ ("l1"); \ 155 } \
152switch (size) { \ 156 data = (__force type) __gu_val; \
153case 1: __get_user_asm_ret(__gu_val,ub,addr,retval); break; \ 157 __gu_ret; \
154case 2: __get_user_asm_ret(__gu_val,uh,addr,retval); break; \ 158})
155case 4: __get_user_asm_ret(__gu_val,uw,addr,retval); break; \ 159
156case 8: __get_user_asm_ret(__gu_val,x,addr,retval); break; \ 160#define __get_user_nocheck_ret(data, addr, size, type, retval) ({ \
157default: if (__get_user_bad()) return retval; \ 161 register unsigned long __gu_val __asm__ ("l1"); \
158} data = (type) __gu_val; }) 162 switch (size) { \
159 163 case 1: __get_user_asm_ret(__gu_val, ub, addr, retval); break; \
160#define __get_user_asm(x,size,addr,ret) \ 164 case 2: __get_user_asm_ret(__gu_val, uh, addr, retval); break; \
165 case 4: __get_user_asm_ret(__gu_val, uw, addr, retval); break; \
166 case 8: __get_user_asm_ret(__gu_val, x, addr, retval); break; \
167 default: \
168 if (__get_user_bad()) \
169 return retval; \
170 } \
171 data = (__force type) __gu_val; \
172})
173
174#define __get_user_asm(x, size, addr, ret) \
161__asm__ __volatile__( \ 175__asm__ __volatile__( \
162 "/* Get user asm, inline. */\n" \ 176 "/* Get user asm, inline. */\n" \
163"1:\t" "ld"#size "a [%2] %%asi, %1\n\t" \ 177 "1:\t" "ld"#size "a [%2] %%asi, %1\n\t" \
164 "clr %0\n" \ 178 "clr %0\n" \
165"2:\n\n\t" \ 179 "2:\n\n\t" \
166 ".section .fixup,#alloc,#execinstr\n\t" \ 180 ".section .fixup,#alloc,#execinstr\n\t" \
167 ".align 4\n" \ 181 ".align 4\n" \
168"3:\n\t" \ 182 "3:\n\t" \
169 "sethi %%hi(2b), %0\n\t" \ 183 "sethi %%hi(2b), %0\n\t" \
170 "clr %1\n\t" \ 184 "clr %1\n\t" \
171 "jmpl %0 + %%lo(2b), %%g0\n\t" \ 185 "jmpl %0 + %%lo(2b), %%g0\n\t" \
172 " mov %3, %0\n\n\t" \ 186 " mov %3, %0\n\n\t" \
173 ".previous\n\t" \ 187 ".previous\n\t" \
174 ".section __ex_table,\"a\"\n\t" \ 188 ".section __ex_table,\"a\"\n\t" \
175 ".align 4\n\t" \ 189 ".align 4\n\t" \
176 ".word 1b, 3b\n\n\t" \ 190 ".word 1b, 3b\n\n\t" \
177 ".previous\n\t" \ 191 ".previous\n\t" \
178 : "=r" (ret), "=r" (x) : "r" (__m(addr)), \ 192 : "=r" (ret), "=r" (x) : "r" (__m(addr)), \
179 "i" (-EFAULT)) 193 "i" (-EFAULT))
180 194
181#define __get_user_asm_ret(x,size,addr,retval) \ 195#define __get_user_asm_ret(x, size, addr, retval) \
182if (__builtin_constant_p(retval) && retval == -EFAULT) \ 196if (__builtin_constant_p(retval) && retval == -EFAULT) \
183__asm__ __volatile__( \ 197 __asm__ __volatile__( \
184 "/* Get user asm ret, inline. */\n" \ 198 "/* Get user asm ret, inline. */\n" \
185"1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \ 199 "1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \
186 ".section __ex_table,\"a\"\n\t" \ 200 ".section __ex_table,\"a\"\n\t" \
187 ".align 4\n\t" \ 201 ".align 4\n\t" \
188 ".word 1b,__ret_efault\n\n\t" \ 202 ".word 1b,__ret_efault\n\n\t" \
189 ".previous\n\t" \ 203 ".previous\n\t" \
190 : "=r" (x) : "r" (__m(addr))); \ 204 : "=r" (x) : "r" (__m(addr))); \
191else \ 205else \
192__asm__ __volatile__( \ 206 __asm__ __volatile__( \
193 "/* Get user asm ret, inline. */\n" \ 207 "/* Get user asm ret, inline. */\n" \
194"1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \ 208 "1:\t" "ld"#size "a [%1] %%asi, %0\n\n\t" \
195 ".section .fixup,#alloc,#execinstr\n\t" \ 209 ".section .fixup,#alloc,#execinstr\n\t" \
196 ".align 4\n" \ 210 ".align 4\n" \
197"3:\n\t" \ 211 "3:\n\t" \
198 "ret\n\t" \ 212 "ret\n\t" \
199 " restore %%g0, %2, %%o0\n\n\t" \ 213 " restore %%g0, %2, %%o0\n\n\t" \
200 ".previous\n\t" \ 214 ".previous\n\t" \
201 ".section __ex_table,\"a\"\n\t" \ 215 ".section __ex_table,\"a\"\n\t" \
202 ".align 4\n\t" \ 216 ".align 4\n\t" \
203 ".word 1b, 3b\n\n\t" \ 217 ".word 1b, 3b\n\n\t" \
204 ".previous\n\t" \ 218 ".previous\n\t" \
205 : "=r" (x) : "r" (__m(addr)), "i" (retval)) 219 : "=r" (x) : "r" (__m(addr)), "i" (retval))
206 220
207int __get_user_bad(void); 221int __get_user_bad(void);
208 222
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 0d592e0a5b84..ace9dec050b1 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -179,7 +179,7 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
179 asm volatile("call __get_user_%P3" \ 179 asm volatile("call __get_user_%P3" \
180 : "=a" (__ret_gu), "=r" (__val_gu) \ 180 : "=a" (__ret_gu), "=r" (__val_gu) \
181 : "0" (ptr), "i" (sizeof(*(ptr)))); \ 181 : "0" (ptr), "i" (sizeof(*(ptr)))); \
182 (x) = (__typeof__(*(ptr))) __val_gu; \ 182 (x) = (__force __typeof__(*(ptr))) __val_gu; \
183 __ret_gu; \ 183 __ret_gu; \
184}) 184})
185 185
diff --git a/arch/xtensa/include/asm/uaccess.h b/arch/xtensa/include/asm/uaccess.h
index 876eb380aa26..147b26ed9c91 100644
--- a/arch/xtensa/include/asm/uaccess.h
+++ b/arch/xtensa/include/asm/uaccess.h
@@ -182,13 +182,13 @@
182#define get_fs() (current->thread.current_ds) 182#define get_fs() (current->thread.current_ds)
183#define set_fs(val) (current->thread.current_ds = (val)) 183#define set_fs(val) (current->thread.current_ds = (val))
184 184
185#define segment_eq(a,b) ((a).seg == (b).seg) 185#define segment_eq(a, b) ((a).seg == (b).seg)
186 186
187#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS)) 187#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
188#define __user_ok(addr,size) \ 188#define __user_ok(addr, size) \
189 (((size) <= TASK_SIZE)&&((addr) <= TASK_SIZE-(size))) 189 (((size) <= TASK_SIZE)&&((addr) <= TASK_SIZE-(size)))
190#define __access_ok(addr,size) (__kernel_ok || __user_ok((addr),(size))) 190#define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size)))
191#define access_ok(type,addr,size) __access_ok((unsigned long)(addr),(size)) 191#define access_ok(type, addr, size) __access_ok((unsigned long)(addr), (size))
192 192
193/* 193/*
194 * These are the main single-value transfer routines. They 194 * These are the main single-value transfer routines. They
@@ -204,8 +204,8 @@
204 * (a) re-use the arguments for side effects (sizeof is ok) 204 * (a) re-use the arguments for side effects (sizeof is ok)
205 * (b) require any knowledge of processes at this stage 205 * (b) require any knowledge of processes at this stage
206 */ 206 */
207#define put_user(x,ptr) __put_user_check((x),(ptr),sizeof(*(ptr))) 207#define put_user(x, ptr) __put_user_check((x), (ptr), sizeof(*(ptr)))
208#define get_user(x,ptr) __get_user_check((x),(ptr),sizeof(*(ptr))) 208#define get_user(x, ptr) __get_user_check((x), (ptr), sizeof(*(ptr)))
209 209
210/* 210/*
211 * The "__xxx" versions of the user access functions are versions that 211 * The "__xxx" versions of the user access functions are versions that
@@ -213,39 +213,39 @@
213 * with a separate "access_ok()" call (this is used when we do multiple 213 * with a separate "access_ok()" call (this is used when we do multiple
214 * accesses to the same area of user memory). 214 * accesses to the same area of user memory).
215 */ 215 */
216#define __put_user(x,ptr) __put_user_nocheck((x),(ptr),sizeof(*(ptr))) 216#define __put_user(x, ptr) __put_user_nocheck((x), (ptr), sizeof(*(ptr)))
217#define __get_user(x,ptr) __get_user_nocheck((x),(ptr),sizeof(*(ptr))) 217#define __get_user(x, ptr) __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
218 218
219 219
220extern long __put_user_bad(void); 220extern long __put_user_bad(void);
221 221
222#define __put_user_nocheck(x,ptr,size) \ 222#define __put_user_nocheck(x, ptr, size) \
223({ \ 223({ \
224 long __pu_err; \ 224 long __pu_err; \
225 __put_user_size((x),(ptr),(size),__pu_err); \ 225 __put_user_size((x), (ptr), (size), __pu_err); \
226 __pu_err; \ 226 __pu_err; \
227}) 227})
228 228
229#define __put_user_check(x,ptr,size) \ 229#define __put_user_check(x, ptr, size) \
230({ \ 230({ \
231 long __pu_err = -EFAULT; \ 231 long __pu_err = -EFAULT; \
232 __typeof__(*(ptr)) *__pu_addr = (ptr); \ 232 __typeof__(*(ptr)) *__pu_addr = (ptr); \
233 if (access_ok(VERIFY_WRITE,__pu_addr,size)) \ 233 if (access_ok(VERIFY_WRITE, __pu_addr, size)) \
234 __put_user_size((x),__pu_addr,(size),__pu_err); \ 234 __put_user_size((x), __pu_addr, (size), __pu_err); \
235 __pu_err; \ 235 __pu_err; \
236}) 236})
237 237
238#define __put_user_size(x,ptr,size,retval) \ 238#define __put_user_size(x, ptr, size, retval) \
239do { \ 239do { \
240 int __cb; \ 240 int __cb; \
241 retval = 0; \ 241 retval = 0; \
242 switch (size) { \ 242 switch (size) { \
243 case 1: __put_user_asm(x,ptr,retval,1,"s8i",__cb); break; \ 243 case 1: __put_user_asm(x, ptr, retval, 1, "s8i", __cb); break; \
244 case 2: __put_user_asm(x,ptr,retval,2,"s16i",__cb); break; \ 244 case 2: __put_user_asm(x, ptr, retval, 2, "s16i", __cb); break; \
245 case 4: __put_user_asm(x,ptr,retval,4,"s32i",__cb); break; \ 245 case 4: __put_user_asm(x, ptr, retval, 4, "s32i", __cb); break; \
246 case 8: { \ 246 case 8: { \
247 __typeof__(*ptr) __v64 = x; \ 247 __typeof__(*ptr) __v64 = x; \
248 retval = __copy_to_user(ptr,&__v64,8); \ 248 retval = __copy_to_user(ptr, &__v64, 8); \
249 break; \ 249 break; \
250 } \ 250 } \
251 default: __put_user_bad(); \ 251 default: __put_user_bad(); \
@@ -316,35 +316,35 @@ __asm__ __volatile__( \
316 :"=r" (err), "=r" (cb) \ 316 :"=r" (err), "=r" (cb) \
317 :"r" ((int)(x)), "r" (addr), "i" (-EFAULT), "0" (err)) 317 :"r" ((int)(x)), "r" (addr), "i" (-EFAULT), "0" (err))
318 318
319#define __get_user_nocheck(x,ptr,size) \ 319#define __get_user_nocheck(x, ptr, size) \
320({ \ 320({ \
321 long __gu_err, __gu_val; \ 321 long __gu_err, __gu_val; \
322 __get_user_size(__gu_val,(ptr),(size),__gu_err); \ 322 __get_user_size(__gu_val, (ptr), (size), __gu_err); \
323 (x) = (__force __typeof__(*(ptr)))__gu_val; \ 323 (x) = (__force __typeof__(*(ptr)))__gu_val; \
324 __gu_err; \ 324 __gu_err; \
325}) 325})
326 326
327#define __get_user_check(x,ptr,size) \ 327#define __get_user_check(x, ptr, size) \
328({ \ 328({ \
329 long __gu_err = -EFAULT, __gu_val = 0; \ 329 long __gu_err = -EFAULT, __gu_val = 0; \
330 const __typeof__(*(ptr)) *__gu_addr = (ptr); \ 330 const __typeof__(*(ptr)) *__gu_addr = (ptr); \
331 if (access_ok(VERIFY_READ,__gu_addr,size)) \ 331 if (access_ok(VERIFY_READ, __gu_addr, size)) \
332 __get_user_size(__gu_val,__gu_addr,(size),__gu_err); \ 332 __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
333 (x) = (__force __typeof__(*(ptr)))__gu_val; \ 333 (x) = (__force __typeof__(*(ptr)))__gu_val; \
334 __gu_err; \ 334 __gu_err; \
335}) 335})
336 336
337extern long __get_user_bad(void); 337extern long __get_user_bad(void);
338 338
339#define __get_user_size(x,ptr,size,retval) \ 339#define __get_user_size(x, ptr, size, retval) \
340do { \ 340do { \
341 int __cb; \ 341 int __cb; \
342 retval = 0; \ 342 retval = 0; \
343 switch (size) { \ 343 switch (size) { \
344 case 1: __get_user_asm(x,ptr,retval,1,"l8ui",__cb); break; \ 344 case 1: __get_user_asm(x, ptr, retval, 1, "l8ui", __cb); break;\
345 case 2: __get_user_asm(x,ptr,retval,2,"l16ui",__cb); break; \ 345 case 2: __get_user_asm(x, ptr, retval, 2, "l16ui", __cb); break;\
346 case 4: __get_user_asm(x,ptr,retval,4,"l32i",__cb); break; \ 346 case 4: __get_user_asm(x, ptr, retval, 4, "l32i", __cb); break;\
347 case 8: retval = __copy_from_user(&x,ptr,8); break; \ 347 case 8: retval = __copy_from_user(&x, ptr, 8); break; \
348 default: (x) = __get_user_bad(); \ 348 default: (x) = __get_user_bad(); \
349 } \ 349 } \
350} while (0) 350} while (0)
@@ -390,19 +390,19 @@ __asm__ __volatile__( \
390 */ 390 */
391 391
392extern unsigned __xtensa_copy_user(void *to, const void *from, unsigned n); 392extern unsigned __xtensa_copy_user(void *to, const void *from, unsigned n);
393#define __copy_user(to,from,size) __xtensa_copy_user(to,from,size) 393#define __copy_user(to, from, size) __xtensa_copy_user(to, from, size)
394 394
395 395
396static inline unsigned long 396static inline unsigned long
397__generic_copy_from_user_nocheck(void *to, const void *from, unsigned long n) 397__generic_copy_from_user_nocheck(void *to, const void *from, unsigned long n)
398{ 398{
399 return __copy_user(to,from,n); 399 return __copy_user(to, from, n);
400} 400}
401 401
402static inline unsigned long 402static inline unsigned long
403__generic_copy_to_user_nocheck(void *to, const void *from, unsigned long n) 403__generic_copy_to_user_nocheck(void *to, const void *from, unsigned long n)
404{ 404{
405 return __copy_user(to,from,n); 405 return __copy_user(to, from, n);
406} 406}
407 407
408static inline unsigned long 408static inline unsigned long
@@ -410,7 +410,7 @@ __generic_copy_to_user(void *to, const void *from, unsigned long n)
410{ 410{
411 prefetch(from); 411 prefetch(from);
412 if (access_ok(VERIFY_WRITE, to, n)) 412 if (access_ok(VERIFY_WRITE, to, n))
413 return __copy_user(to,from,n); 413 return __copy_user(to, from, n);
414 return n; 414 return n;
415} 415}
416 416
@@ -419,18 +419,18 @@ __generic_copy_from_user(void *to, const void *from, unsigned long n)
419{ 419{
420 prefetchw(to); 420 prefetchw(to);
421 if (access_ok(VERIFY_READ, from, n)) 421 if (access_ok(VERIFY_READ, from, n))
422 return __copy_user(to,from,n); 422 return __copy_user(to, from, n);
423 else 423 else
424 memset(to, 0, n); 424 memset(to, 0, n);
425 return n; 425 return n;
426} 426}
427 427
428#define copy_to_user(to,from,n) __generic_copy_to_user((to),(from),(n)) 428#define copy_to_user(to, from, n) __generic_copy_to_user((to), (from), (n))
429#define copy_from_user(to,from,n) __generic_copy_from_user((to),(from),(n)) 429#define copy_from_user(to, from, n) __generic_copy_from_user((to), (from), (n))
430#define __copy_to_user(to,from,n) \ 430#define __copy_to_user(to, from, n) \
431 __generic_copy_to_user_nocheck((to),(from),(n)) 431 __generic_copy_to_user_nocheck((to), (from), (n))
432#define __copy_from_user(to,from,n) \ 432#define __copy_from_user(to, from, n) \
433 __generic_copy_from_user_nocheck((to),(from),(n)) 433 __generic_copy_from_user_nocheck((to), (from), (n))
434#define __copy_to_user_inatomic __copy_to_user 434#define __copy_to_user_inatomic __copy_to_user
435#define __copy_from_user_inatomic __copy_from_user 435#define __copy_from_user_inatomic __copy_from_user
436 436
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-28 15:20:19 -0500