bfin: switch to RAW_COPY_USER (50e9ab91) · Commits · e / devices / android_kernel_oneplus_sm8150

arch/blackfin/Kconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -41,6 +41,7 @@ config BLACKFIN
		select MODULES_USE_ELF_RELA
		select HAVE_DEBUG_STACKOVERFLOW
		select HAVE_NMI
		select ARCH_HAS_RAW_COPY_USER

		config GENERIC_CSUM
		def_bool y

+4 −22

Original line number	Diff line number	Diff line
		@@ -144,41 +144,23 @@ static inline int bad_user_access_length(void)
		: "a" (__ptr(ptr))); \
		})

		#define __copy_to_user_inatomic __copy_to_user
		#define __copy_from_user_inatomic __copy_from_user

		static inline unsigned long __must_check
		__copy_from_user(void to, const void __user from, unsigned long n)
		raw_copy_from_user(void to, const void __user from, unsigned long n)
		{
		memcpy(to, (const void __force *)from, n);
		return 0;
		}

		static inline unsigned long __must_check
		__copy_to_user(void __user to, const void from, unsigned long n)
		raw_copy_to_user(void __user to, const void from, unsigned long n)
		{
		memcpy((void __force *)to, from, n);
		SSYNC();
		return 0;
		}

		static inline unsigned long __must_check
		copy_from_user(void to, const void __user from, unsigned long n)
		{
		if (likely(access_ok(VERIFY_READ, from, n)))
		return __copy_from_user(to, from, n);
		memset(to, 0, n);
		return n;
		}

		static inline unsigned long __must_check
		copy_to_user(void __user to, const void from, unsigned long n)
		{
		if (likely(access_ok(VERIFY_WRITE, to, n)))
		return __copy_to_user(to, from, n);
		return n;
		}

		#define INLINE_COPY_FROM_USER
		#define INLINE_COPY_TO_USER
		/*
		* Copy a null terminated string from userspace.
		*/