MIPS: Make uaccess.h slightly more sparse friendly. (ed01b3d2) · Commits · 戴 / test

arch/mips/include/asm/uaccess.h

+27 −12

Original line number	Diff line number	Diff line
		@@ -106,12 +106,12 @@

		#define __access_ok(addr, size, mask) \
		({ \
		const volatile void __user *__up = addr; \
		unsigned long __addr = (unsigned long) __up; \
		unsigned long __addr = (unsigned long) (addr); \
		unsigned long __size = size; \
		unsigned long __mask = mask; \
		unsigned long __ok; \
		\
		__chk_user_ptr(addr); \
		__ok = (signed long)(__mask & (__addr \| (__addr + __size) \| \
		__ua_size(__size))); \
		__ok == 0; \
		@@ -235,6 +235,7 @@ do { \
		({ \
		int __gu_err; \
		\
		__chk_user_ptr(ptr); \
		__get_user_common((x), size, ptr); \
		__gu_err; \
		})
		@@ -315,6 +316,7 @@ do { \
		__typeof__(*(ptr)) __pu_val; \
		int __pu_err = 0; \
		\
		__chk_user_ptr(ptr); \
		__pu_val = (x); \
		switch (size) { \
		case 1: __put_user_asm("sb", ptr); break; \
		@@ -882,7 +884,20 @@ extern size_t __copy_user_inatomic(void __to, const void __from, size_t __n);
		__cu_len; \
		})

		#define __copy_in_user(to, from, n) __copy_from_user(to, from, n)
		#define __copy_in_user(to, from, n) \
		({ \
		void __user *__cu_to; \
		const void __user *__cu_from; \
		long __cu_len; \
		\
		might_sleep(); \
		__cu_to = (to); \
		__cu_from = (from); \
		__cu_len = (n); \
		__cu_len = __invoke_copy_from_user(__cu_to, __cu_from, \
		__cu_len); \
		__cu_len; \
		})

		#define copy_in_user(to, from, n) \
		({ \