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authorAl Viro <viro@zeniv.linux.org.uk>2016-12-27 08:26:32 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2017-03-29 00:23:18 +0200
commitc9df6025a6ecc5b4d243d1469a4697e03c371a88 (patch)
tree49f77123daa8463b4b820b2b05914ac36c10555c /arch/alpha/include
parentalpha: don't bother with __access_ok() in traps.c (diff)
downloadlinux-c9df6025a6ecc5b4d243d1469a4697e03c371a88.tar.xz
linux-c9df6025a6ecc5b4d243d1469a4697e03c371a88.zip
alpha: kill the 'segment' argument of __access_ok()
always equal to get_fs(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/alpha/include')
-rw-r--r--arch/alpha/include/asm/uaccess.h82
1 files changed, 41 insertions, 41 deletions
diff --git a/arch/alpha/include/asm/uaccess.h b/arch/alpha/include/asm/uaccess.h
index 30fa8843e177..54c1d19ef06d 100644
--- a/arch/alpha/include/asm/uaccess.h
+++ b/arch/alpha/include/asm/uaccess.h
@@ -32,13 +32,13 @@
* - AND "addr+size" doesn't have any high-bits set
* - OR we are in kernel mode.
*/
-#define __access_ok(addr, size, segment) \
- (((segment).seg & (addr | size | (addr+size))) == 0)
+#define __access_ok(addr, size) \
+ ((get_fs().seg & (addr | size | (addr+size))) == 0)
-#define access_ok(type, addr, size) \
-({ \
- __chk_user_ptr(addr); \
- __access_ok(((unsigned long)(addr)), (size), get_fs()); \
+#define access_ok(type, addr, size) \
+({ \
+ __chk_user_ptr(addr); \
+ __access_ok(((unsigned long)(addr)), (size)); \
})
/*
@@ -93,23 +93,23 @@ extern void __get_user_unknown(void);
__gu_err; \
})
-#define __get_user_check(x, ptr, size) \
-({ \
- long __gu_err = -EFAULT; \
- unsigned long __gu_val = 0; \
- const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
- if (__access_ok((unsigned long)__gu_addr, size, get_fs())) { \
- __gu_err = 0; \
- switch (size) { \
- case 1: __get_user_8(__gu_addr); break; \
- case 2: __get_user_16(__gu_addr); break; \
- case 4: __get_user_32(__gu_addr); break; \
- case 8: __get_user_64(__gu_addr); break; \
- default: __get_user_unknown(); break; \
- } \
- } \
- (x) = (__force __typeof__(*(ptr))) __gu_val; \
- __gu_err; \
+#define __get_user_check(x, ptr, size) \
+({ \
+ long __gu_err = -EFAULT; \
+ unsigned long __gu_val = 0; \
+ const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
+ if (__access_ok((unsigned long)__gu_addr, size)) { \
+ __gu_err = 0; \
+ switch (size) { \
+ case 1: __get_user_8(__gu_addr); break; \
+ case 2: __get_user_16(__gu_addr); break; \
+ case 4: __get_user_32(__gu_addr); break; \
+ case 8: __get_user_64(__gu_addr); break; \
+ default: __get_user_unknown(); break; \
+ } \
+ } \
+ (x) = (__force __typeof__(*(ptr))) __gu_val; \
+ __gu_err; \
})
struct __large_struct { unsigned long buf[100]; };
@@ -208,21 +208,21 @@ extern void __put_user_unknown(void);
__pu_err; \
})
-#define __put_user_check(x, ptr, size) \
-({ \
- long __pu_err = -EFAULT; \
- __typeof__(*(ptr)) __user *__pu_addr = (ptr); \
- if (__access_ok((unsigned long)__pu_addr, size, get_fs())) { \
- __pu_err = 0; \
- switch (size) { \
- case 1: __put_user_8(x, __pu_addr); break; \
- case 2: __put_user_16(x, __pu_addr); break; \
- case 4: __put_user_32(x, __pu_addr); break; \
- case 8: __put_user_64(x, __pu_addr); break; \
- default: __put_user_unknown(); break; \
- } \
- } \
- __pu_err; \
+#define __put_user_check(x, ptr, size) \
+({ \
+ long __pu_err = -EFAULT; \
+ __typeof__(*(ptr)) __user *__pu_addr = (ptr); \
+ if (__access_ok((unsigned long)__pu_addr, size)) { \
+ __pu_err = 0; \
+ switch (size) { \
+ case 1: __put_user_8(x, __pu_addr); break; \
+ case 2: __put_user_16(x, __pu_addr); break; \
+ case 4: __put_user_32(x, __pu_addr); break; \
+ case 8: __put_user_64(x, __pu_addr); break; \
+ default: __put_user_unknown(); break; \
+ } \
+ } \
+ __pu_err; \
})
/*
@@ -353,7 +353,7 @@ extern long __copy_user(void *to, const void *from, long len);
extern inline long
copy_to_user(void __user *to, const void *from, long n)
{
- if (likely(__access_ok((unsigned long)to, n, get_fs())))
+ if (likely(__access_ok((unsigned long)to, n)))
n = __copy_user((__force void *)to, from, n);
return n;
}
@@ -362,7 +362,7 @@ extern inline long
copy_from_user(void *to, const void __user *from, long n)
{
long res = n;
- if (likely(__access_ok((unsigned long)from, n, get_fs())))
+ if (likely(__access_ok((unsigned long)from, n)))
res = __copy_from_user_inatomic(to, from, n);
if (unlikely(res))
memset(to + (n - res), 0, res);
@@ -374,7 +374,7 @@ extern long __clear_user(void __user *to, long len);
extern inline long
clear_user(void __user *to, long len)
{
- if (__access_ok((unsigned long)to, len, get_fs()))
+ if (__access_ok((unsigned long)to, len))
len = __clear_user(to, len);
return len;
}