projects/linux·commit 89cbec71

Merge branch 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

89cbec71 · Linus Torvalds <[email protected]> · 2017-07-15 11:17:52 -07:00

Pull uacess-unaligned removal from Al Viro:
 "That stuff had just one user, and an exotic one, at that - binfmt_flat
  on arm and m68k"

* 'work.uaccess-unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  kill {__,}{get,put}_user_unaligned()
  binfmt_flat: flat_{get,put}_addr_from_rp() should be able to fail
Commit
89cbec71fead552fdd1fa38c57186669dfbba734
Parents
2173bd06 · 3170d8d2

Merge commit. Changes below are compared with the first parent: 2173bd06.

Changes

24 files changed · +168 −450

Only the first 600 diff lines are shown. Download the complete patch.

arch/arm/include/asm/flat.h

View file
diff --git a/arch/arm/include/asm/flat.h b/arch/arm/include/asm/flat.h
index acf1d14..29d3a15 100644
--- a/arch/arm/include/asm/flat.h
+++ b/arch/arm/include/asm/flat.h
@@ -5,12 +5,31 @@
#ifndef __ARM_FLAT_H__
#define __ARM_FLAT_H__
+#include <linux/uaccess.h>
+
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
- ({ unsigned long __val; __get_user_unaligned(__val, rp); __val; })
-#define flat_put_addr_at_rp(rp, val, relval) __put_user_unaligned(val, rp)
+
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
+#else
+ return get_user(*addr, rp);
+#endif
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
+#else
+ return put_user(addr, rp);
+#endif
+}
+
#define flat_get_relocate_addr(rel) (rel)
#define flat_set_persistent(relval, p) 0

arch/arm/include/asm/uaccess.h

View file
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 6838abc..0bf2347 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -17,13 +17,6 @@
#include <asm/unified.h>
#include <asm/compiler.h>
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
-#include <asm-generic/uaccess-unaligned.h>
-#else
-#define __get_user_unaligned __get_user
-#define __put_user_unaligned __put_user
-#endif
-
#include <asm/extable.h>
/*

arch/arm64/include/asm/uaccess.h

View file
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 59f09e6..8f0a1de 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -254,8 +254,6 @@ do { \
(void)0; \
})
-#define __get_user_unaligned __get_user
-
#define get_user(x, ptr) \
({ \
__typeof__(*(ptr)) __user *__p = (ptr); \
@@ -320,8 +318,6 @@ do { \
(void)0; \
})
-#define __put_user_unaligned __put_user
-
#define put_user(x, ptr) \
({ \
__typeof__(*(ptr)) __user *__p = (ptr); \

arch/blackfin/include/asm/flat.h

View file
diff --git a/arch/blackfin/include/asm/flat.h b/arch/blackfin/include/asm/flat.h
index c1314c5..296d7f5 100644
--- a/arch/blackfin/include/asm/flat.h
+++ b/arch/blackfin/include/asm/flat.h
@@ -14,23 +14,28 @@
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
-extern unsigned long bfin_get_addr_from_rp (unsigned long *ptr,
- unsigned long relval,
- unsigned long flags,
- unsigned long *persistent);
+extern unsigned long bfin_get_addr_from_rp (u32 *ptr, u32 relval,
+ u32 flags, u32 *persistent);
-extern void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
- unsigned long relval);
+extern void bfin_put_addr_at_rp(u32 *ptr, u32 addr, u32 relval);
/* The amount by which a relocation can exceed the program image limits
without being regarded as an error. */
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
- bfin_get_addr_from_rp(rp, relval, flags, persistent)
-#define flat_put_addr_at_rp(rp, val, relval) \
- bfin_put_addr_at_rp(rp, val, relval)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ *addr = bfin_get_addr_from_rp(rp, relval, flags, persistent);
+ return 0;
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 val, u32 relval)
+{
+ bfin_put_addr_at_rp(rp, val, relval);
+ return 0;
+}
/* Convert a relocation entry into an address. */
static inline unsigned long

arch/blackfin/kernel/flat.c

View file
diff --git a/arch/blackfin/kernel/flat.c b/arch/blackfin/kernel/flat.c
index b5b6584..d29ab6a 100644
--- a/arch/blackfin/kernel/flat.c
+++ b/arch/blackfin/kernel/flat.c
@@ -13,14 +13,14 @@
#define FLAT_BFIN_RELOC_TYPE_16H_BIT 1
#define FLAT_BFIN_RELOC_TYPE_32_BIT 2
-unsigned long bfin_get_addr_from_rp(unsigned long *ptr,
- unsigned long relval,
- unsigned long flags,
- unsigned long *persistent)
+unsigned long bfin_get_addr_from_rp(u32 *ptr,
+ u32 relval,
+ u32 flags,
+ u32 *persistent)
{
unsigned short *usptr = (unsigned short *)ptr;
int type = (relval >> 26) & 7;
- unsigned long val;
+ u32 val;
switch (type) {
case FLAT_BFIN_RELOC_TYPE_16_BIT:
@@ -59,8 +59,7 @@ EXPORT_SYMBOL(bfin_get_addr_from_rp);
* Insert the address ADDR into the symbol reference at RP;
* RELVAL is the raw relocation-table entry from which RP is derived
*/
-void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
- unsigned long relval)
+void bfin_put_addr_at_rp(u32 *ptr, u32 addr, u32 relval)
{
unsigned short *usptr = (unsigned short *)ptr;
int type = (relval >> 26) & 7;

arch/c6x/include/asm/flat.h

View file
diff --git a/arch/c6x/include/asm/flat.h b/arch/c6x/include/asm/flat.h
index a1858bd..6f1feb0 100644
--- a/arch/c6x/include/asm/flat.h
+++ b/arch/c6x/include/asm/flat.h
@@ -1,11 +1,22 @@
#ifndef __ASM_C6X_FLAT_H
#define __ASM_C6X_FLAT_H
+#include <asm/unaligned.h>
+
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, p) get_unaligned(rp)
-#define flat_put_addr_at_rp(rp, val, relval) put_unaligned(val, rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ *addr = get_unaligned((__force u32 *)rp);
+ return 0;
+}
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+ put_unaligned(addr, (__force u32 *)rp);
+ return 0;
+}
#define flat_get_relocate_addr(rel) (rel)
#define flat_set_persistent(relval, p) 0

arch/h8300/include/asm/flat.h

View file
diff --git a/arch/h8300/include/asm/flat.h b/arch/h8300/include/asm/flat.h
index a4898ec..18d0242 100644
--- a/arch/h8300/include/asm/flat.h
+++ b/arch/h8300/include/asm/flat.h
@@ -5,6 +5,8 @@
#ifndef __H8300_FLAT_H__
#define __H8300_FLAT_H__
+#include <asm/unaligned.h>
+
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) 1
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
@@ -18,11 +20,21 @@
*/
#define flat_get_relocate_addr(rel) (rel & ~0x00000001)
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
- ({(void)persistent; \
- get_unaligned(rp) & (((flags) & FLAT_FLAG_GOTPIC) ? \
- 0xffffffff : 0x00ffffff); })
-#define flat_put_addr_at_rp(rp, addr, rel) \
- put_unaligned(((*(char *)(rp)) << 24) | ((addr) & 0x00ffffff), (rp))
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+ u32 val = get_unaligned((__force u32 *)rp);
+ if (!(flags & FLAT_FLAG_GOTPIC)
+ val &= 0x00ffffff;
+ *addr = val;
+ return 0;
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+ u32 *p = (__force u32 *)rp;
+ put_unaligned((addr & 0x00ffffff) | (*(char *)p << 24), p);
+ return 0;
+}
#endif /* __H8300_FLAT_H__ */

arch/ia64/include/asm/uaccess.h

View file
diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
index b2106b0..0890ded 100644
--- a/arch/ia64/include/asm/uaccess.h
+++ b/arch/ia64/include/asm/uaccess.h
@@ -87,42 +87,6 @@ static inline int __access_ok(const void __user *p, unsigned long size)
#define __put_user(x, ptr) __put_user_nocheck((__typeof__(*(ptr))) (x), (ptr), sizeof(*(ptr)))
#define __get_user(x, ptr) __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
-extern long __put_user_unaligned_unknown (void);
-
-#define __put_user_unaligned(x, ptr) \
-({ \
- long __ret; \
- switch (sizeof(*(ptr))) { \
- case 1: __ret = __put_user((x), (ptr)); break; \
- case 2: __ret = (__put_user((x), (u8 __user *)(ptr))) \
- | (__put_user((x) >> 8, ((u8 __user *)(ptr) + 1))); break; \
- case 4: __ret = (__put_user((x), (u16 __user *)(ptr))) \
- | (__put_user((x) >> 16, ((u16 __user *)(ptr) + 1))); break; \
- case 8: __ret = (__put_user((x), (u32 __user *)(ptr))) \
- | (__put_user((x) >> 32, ((u32 __user *)(ptr) + 1))); break; \
- default: __ret = __put_user_unaligned_unknown(); \
- } \
- __ret; \
-})
-
-extern long __get_user_unaligned_unknown (void);
-
-#define __get_user_unaligned(x, ptr) \
-({ \
- long __ret; \
- switch (sizeof(*(ptr))) { \
- case 1: __ret = __get_user((x), (ptr)); break; \
- case 2: __ret = (__get_user((x), (u8 __user *)(ptr))) \
- | (__get_user((x) >> 8, ((u8 __user *)(ptr) + 1))); break; \
- case 4: __ret = (__get_user((x), (u16 __user *)(ptr))) \
- | (__get_user((x) >> 16, ((u16 __user *)(ptr) + 1))); break; \
- case 8: __ret = (__get_user((x), (u32 __user *)(ptr))) \
- | (__get_user((x) >> 32, ((u32 __user *)(ptr) + 1))); break; \
- default: __ret = __get_user_unaligned_unknown(); \
- } \
- __ret; \
-})
-
#ifdef ASM_SUPPORTED
struct __large_struct { unsigned long buf[100]; };
# define __m(x) (*(struct __large_struct __user *)(x))

arch/m32r/include/asm/flat.h

View file
diff --git a/arch/m32r/include/asm/flat.h b/arch/m32r/include/asm/flat.h
index 5d711c4..455ce7d 100644
--- a/arch/m32r/include/asm/flat.h
+++ b/arch/m32r/include/asm/flat.h
@@ -17,11 +17,6 @@
#define flat_set_persistent(relval, p) 0
#define flat_reloc_valid(reloc, size) \
(((reloc) - textlen_for_m32r_lo16_data) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
- m32r_flat_get_addr_from_rp(rp, relval, (text_len) )
-
-#define flat_put_addr_at_rp(rp, addr, relval) \
- m32r_flat_put_addr_at_rp(rp, addr, relval)
/* Convert a relocation entry into an address. */
static inline unsigned long
@@ -57,9 +52,9 @@ flat_get_relocate_addr (unsigned long relval)
static unsigned long textlen_for_m32r_lo16_data = 0;
-static inline unsigned long m32r_flat_get_addr_from_rp (unsigned long *rp,
- unsigned long relval,
- unsigned long textlen)
+static inline unsigned long m32r_flat_get_addr_from_rp (u32 *rp,
+ u32 relval,
+ u32 textlen)
{
unsigned int reloc = flat_m32r_get_reloc_type (relval);
textlen_for_m32r_lo16_data = 0;
@@ -100,9 +95,7 @@ static inline unsigned long m32r_flat_get_addr_from_rp (unsigned long *rp,
return ~0; /* bogus value */
}
-static inline void m32r_flat_put_addr_at_rp (unsigned long *rp,
- unsigned long addr,
- unsigned long relval)
+static inline void flat_put_addr_at_rp(u32 *rp, u32 addr, u32 relval)
{
unsigned int reloc = flat_m32r_get_reloc_type (relval);
if (reloc & 0xf0) {
@@ -142,4 +135,8 @@ static inline void m32r_flat_put_addr_at_rp (unsigned long *rp,
}
}
+// kludge - text_len is a local variable in the only user.
+#define flat_get_addr_from_rp(rp, relval, flags, addr, persistent) \
+ (m32r_flat_get_addr_from_rp(rp, relval, text_len), 0)
+
#endif /* __ASM_M32R_FLAT_H */

arch/m68k/include/asm/flat.h

View file
diff --git a/arch/m68k/include/asm/flat.h b/arch/m68k/include/asm/flat.h
index 00c392b..48b6279 100644
--- a/arch/m68k/include/asm/flat.h
+++ b/arch/m68k/include/asm/flat.h
@@ -5,12 +5,29 @@
#ifndef __M68KNOMMU_FLAT_H__
#define __M68KNOMMU_FLAT_H__
+#include <linux/uaccess.h>
+
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, p) \
- ({ unsigned long __val; __get_user_unaligned(__val, rp); __val; })
-#define flat_put_addr_at_rp(rp, val, relval) __put_user_unaligned(val, rp)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
+{
+#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
+ return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
+#else
+ return get_user(*addr, rp);
+#endif
+}
+
+static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
+{
+#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
+ return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
+#else
+ return put_user(addr, rp);
+#endif
+}
#define flat_get_relocate_addr(rel) (rel)
static inline int flat_set_persistent(unsigned long relval,

arch/m68k/include/asm/uaccess.h

View file
diff --git a/arch/m68k/include/asm/uaccess.h b/arch/m68k/include/asm/uaccess.h
index 67b3481..63ba18e 100644
--- a/arch/m68k/include/asm/uaccess.h
+++ b/arch/m68k/include/asm/uaccess.h
@@ -3,11 +3,4 @@
#else
#include <asm/uaccess_mm.h>
#endif
-
#include <asm/extable.h>
-#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
-#include <asm-generic/uaccess-unaligned.h>
-#else
-#define __get_user_unaligned(x, ptr) __get_user((x), (ptr))
-#define __put_user_unaligned(x, ptr) __put_user((x), (ptr))
-#endif

arch/microblaze/include/asm/flat.h

View file
diff --git a/arch/microblaze/include/asm/flat.h b/arch/microblaze/include/asm/flat.h
index 6847c15..f23c3d2 100644
--- a/arch/microblaze/include/asm/flat.h
+++ b/arch/microblaze/include/asm/flat.h
@@ -32,29 +32,27 @@
* reference
*/
-static inline unsigned long
-flat_get_addr_from_rp(unsigned long *rp, unsigned long relval,
- unsigned long flags, unsigned long *persistent)
+static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
+ u32 *addr, u32 *persistent)
{
- unsigned long addr;
- (void)flags;
+ u32 *p = (__force u32 *)rp;
/* Is it a split 64/32 reference? */
if (relval & 0x80000000) {
/* Grab the two halves of the reference */
- unsigned long val_hi, val_lo;
+ u32 val_hi, val_lo;
- val_hi = get_unaligned(rp);
- val_lo = get_unaligned(rp+1);
+ val_hi = get_unaligned(p);
+ val_lo = get_unaligned(p+1);
/* Crack the address out */
- addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff);
+ *addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff);
} else {
/* Get the address straight out */
- addr = get_unaligned(rp);
+ *addr = get_unaligned(p);
}
- return addr;
+ return 0;
}
/*
@@ -63,25 +61,27 @@ flat_get_addr_from_rp(unsigned long *rp, unsigned long relval,
*/
static inline void
-flat_put_addr_at_rp(unsigned long *rp, unsigned long addr, unsigned long relval)
+flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 relval)
{
+ u32 *p = (__force u32 *)rp;
/* Is this a split 64/32 reloc? */
if (relval & 0x80000000) {
/* Get the two "halves" */
- unsigned long val_hi = get_unaligned(rp);
- unsigned long val_lo = get_unaligned(rp + 1);
+ unsigned long val_hi = get_unaligned(p);
+ unsigned long val_lo = get_unaligned(p + 1);
/* insert the address */
val_hi = (val_hi & 0xffff0000) | addr >> 16;
val_lo = (val_lo & 0xffff0000) | (addr & 0xffff);
/* store the two halves back into memory */
- put_unaligned(val_hi, rp);
- put_unaligned(val_lo, rp+1);
+ put_unaligned(val_hi, p);
+ put_unaligned(val_lo, p+1);
} else {
/* Put it straight in, no messing around */
- put_unaligned(addr, rp);
+ put_unaligned(addr, p);
}
+ return 0;
}
#define flat_get_relocate_addr(rel) (rel & 0x7fffffff)

arch/mips/include/asm/uaccess.h

View file
diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
index 9700251..b713069 100644
--- a/arch/mips/include/asm/uaccess.h
+++ b/arch/mips/include/asm/uaccess.h
@@ -497,283 +497,6 @@ do { \
extern void __put_user_unknown(void);
/*
- * ul{b,h,w} are macros and there are no equivalent macros for EVA.
- * EVA unaligned access is handled in the ADE exception handler.
- */
-#ifndef CONFIG_EVA
-/*
- * put_user_unaligned: - Write a simple value into user space.
- * @x: Value to copy to user space.
- * @ptr: Destination address, in user space.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * This macro copies a single simple value from kernel space to user
- * space. It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and @x must be assignable
- * to the result of dereferencing @ptr.
- *
- * Returns zero on success, or -EFAULT on error.
- */
-#define put_user_unaligned(x,ptr) \
- __put_user_unaligned_check((x),(ptr),sizeof(*(ptr)))
-
-/*
- * get_user_unaligned: - Get a simple variable from user space.
- * @x: Variable to store result.
- * @ptr: Source address, in user space.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * This macro copies a single simple variable from user space to kernel
- * space. It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and the result of
- * dereferencing @ptr must be assignable to @x without a cast.
- *
- * Returns zero on success, or -EFAULT on error.
- * On error, the variable @x is set to zero.
- */
-#define get_user_unaligned(x,ptr) \
- __get_user_unaligned_check((x),(ptr),sizeof(*(ptr)))
-
-/*
- * __put_user_unaligned: - Write a simple value into user space, with less checking.
- * @x: Value to copy to user space.
- * @ptr: Destination address, in user space.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * This macro copies a single simple value from kernel space to user
- * space. It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and @x must be assignable
- * to the result of dereferencing @ptr.
- *
- * Caller must check the pointer with access_ok() before calling this
- * function.
- *
- * Returns zero on success, or -EFAULT on error.
- */
-#define __put_user_unaligned(x,ptr) \
- __put_user_unaligned_nocheck((x),(ptr),sizeof(*(ptr)))
-
-/*
- * __get_user_unaligned: - Get a simple variable from user space, with less checking.
- * @x: Variable to store result.
- * @ptr: Source address, in user space.
- *
- * Context: User context only. This function may sleep if pagefaults are
- * enabled.
- *
- * This macro copies a single simple variable from user space to kernel
- * space. It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and the result of
- * dereferencing @ptr must be assignable to @x without a cast.
- *
- * Caller must check the pointer with access_ok() before calling this
- * function.
- *
- * Returns zero on success, or -EFAULT on error.
- * On error, the variable @x is set to zero.
- */
-#define __get_user_unaligned(x,ptr) \
- __get_user_unaligned_nocheck((x),(ptr),sizeof(*(ptr)))
-
-/*
- * Yuck. We need two variants, one for 64bit operation and one
- * for 32 bit mode and old iron.
- */
-#ifdef CONFIG_32BIT
-#define __GET_USER_UNALIGNED_DW(val, ptr) \
- __get_user_unaligned_asm_ll32(val, ptr)
-#endif
-#ifdef CONFIG_64BIT
-#define __GET_USER_UNALIGNED_DW(val, ptr) \
- __get_user_unaligned_asm(val, "uld", ptr)
-#endif
-
-extern void __get_user_unaligned_unknown(void);
-
-#define __get_user_unaligned_common(val, size, ptr) \
-do { \
- switch (size) { \
- case 1: __get_data_asm(val, "lb", ptr); break; \
- case 2: __get_data_unaligned_asm(val, "ulh", ptr); break; \
- case 4: __get_data_unaligned_asm(val, "ulw", ptr); break; \
- case 8: __GET_USER_UNALIGNED_DW(val, ptr); break; \
- default: __get_user_unaligned_unknown(); break; \
- } \
-} while (0)
-
-#define __get_user_unaligned_nocheck(x,ptr,size) \
-({ \
- int __gu_err; \
- \
- __get_user_unaligned_common((x), size, ptr); \
- __gu_err; \
-})
-
-#define __get_user_unaligned_check(x,ptr,size) \
-({ \
- int __gu_err = -EFAULT; \
- const __typeof__(*(ptr)) __user * __gu_ptr = (ptr); \
- \
- if (likely(access_ok(VERIFY_READ, __gu_ptr, size))) \
- __get_user_unaligned_common((x), size, __gu_ptr); \
- \
- __gu_err; \
-})
-
-#define __get_data_unaligned_asm(val, insn, addr) \
-{ \
- long __gu_tmp; \

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arch/parisc/include/asm/uaccess.h

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arch/powerpc/include/asm/uaccess.h

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arch/s390/include/asm/uaccess.h

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arch/sh/include/asm/flat.h

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arch/sparc/include/asm/uaccess_64.h

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arch/tile/include/asm/uaccess.h

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arch/x86/include/asm/uaccess.h

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arch/xtensa/include/asm/flat.h

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fs/binfmt_flat.c

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include/asm-generic/uaccess-unaligned.h

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include/linux/flat.h

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