Merge ARM fixes

1 files changed, 58 insertions, 7 deletions

diff --git a/include/asm-mips/uaccess.h b/include/asm-mips/uaccess.h
index 1cdd4eeb2f73..c62c20e7b5c6 100644
--- a/include/asm-mips/uaccess.h
+++ b/include/asm-mips/uaccess.h
@@ -265,12 +265,14 @@ do {									\
  */
 #define __get_user_asm_ll32(val, addr)					\
 {									\
-        unsigned long long __gu_tmp;					\
+	union {								\
+		unsigned long long	l;				\
+		__typeof__(*(addr))	t;				\
+	} __gu_tmp;							\
 									\
 	__asm__ __volatile__(						\
 	"1:	lw	%1, (%3)				\n"	\
 	"2:	lw	%D1, 4(%3)				\n"	\
-	"	move	%0, $0					\n"	\
 	"3:	.section	.fixup,\"ax\"			\n"	\
 	"4:	li	%0, %4					\n"	\
 	"	move	%1, $0					\n"	\
@@ -281,9 +283,10 @@ do {									\
 	"	" __UA_ADDR "	1b, 4b				\n"	\
 	"	" __UA_ADDR "	2b, 4b				\n"	\
 	"	.previous					\n"	\
-	: "=r" (__gu_err), "=&r" (__gu_tmp)				\
+	: "=r" (__gu_err), "=&r" (__gu_tmp.l)				\
 	: "0" (0), "r" (addr), "i" (-EFAULT));				\
-	(val) = (__typeof__(*(addr))) __gu_tmp;				\
+									\
+	(val) = __gu_tmp.t;						\
 }
 
 /*
@@ -432,8 +435,32 @@ extern size_t __copy_user(void *__to, const void *__from, size_t __n);
 	__cu_len;							\
 })
 
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
+#define __copy_to_user_inatomic(to,from,n)				\
+({									\
+	void __user *__cu_to;						\
+	const void *__cu_from;						\
+	long __cu_len;							\
+									\
+	__cu_to = (to);							\
+	__cu_from = (from);						\
+	__cu_len = (n);							\
+	__cu_len = __invoke_copy_to_user(__cu_to, __cu_from, __cu_len);	\
+	__cu_len;							\
+})
+
+#define __copy_from_user_inatomic(to,from,n)				\
+({									\
+	void *__cu_to;							\
+	const void __user *__cu_from;					\
+	long __cu_len;							\
+									\
+	__cu_to = (to);							\
+	__cu_from = (from);						\
+	__cu_len = (n);							\
+	__cu_len = __invoke_copy_from_user_inatomic(__cu_to, __cu_from,	\
+	                                            __cu_len);		\
+	__cu_len;							\
+})
 
 /*
  * copy_to_user: - Copy a block of data into user space.
@@ -487,8 +514,32 @@ extern size_t __copy_user(void *__to, const void *__from, size_t __n);
 	__cu_len_r;							\
 })
 
+#define __invoke_copy_from_user_inatomic(to,from,n)			\
+({									\
+	register void *__cu_to_r __asm__ ("$4");			\
+	register const void __user *__cu_from_r __asm__ ("$5");		\
+	register long __cu_len_r __asm__ ("$6");			\
+									\
+	__cu_to_r = (to);						\
+	__cu_from_r = (from);						\
+	__cu_len_r = (n);						\
+	__asm__ __volatile__(						\
+	".set\tnoreorder\n\t"						\
+	__MODULE_JAL(__copy_user_inatomic)				\
+	".set\tnoat\n\t"						\
+	__UA_ADDU "\t$1, %1, %2\n\t"					\
+	".set\tat\n\t"							\
+	".set\treorder"							\
+	: "+r" (__cu_to_r), "+r" (__cu_from_r), "+r" (__cu_len_r)	\
+	:								\
+	: "$8", "$9", "$10", "$11", "$12", "$15", "$24", "$31",		\
+	  "memory");							\
+	__cu_len_r;							\
+})
+
 /*
- * __copy_from_user: - Copy a block of data from user space, with less checking. * @to:   Destination address, in kernel space.
+ * __copy_from_user: - Copy a block of data from user space, with less checking.
+ * @to:   Destination address, in kernel space.
  * @from: Source address, in user space.
  * @n:    Number of bytes to copy.
  *