Commit a0d5f816 authored Nov 14, 2018 by Olof Johansson Committed by Greg Kroah-Hartman Nov 27, 2018

RISC-V: Fix raw_copy_{to,from}_user()



commit 21f70d4abf9e17c2e3d7e64b7bfa3424e017f176 upstream.

Sparse highlighted it, and appears to be a pure bug (from vs to).

./arch/riscv/include/asm/uaccess.h:403:35: warning: incorrect type in argument 1 (different address spaces)
./arch/riscv/include/asm/uaccess.h:403:39: warning: incorrect type in argument 2 (different address spaces)
./arch/riscv/include/asm/uaccess.h:409:37: warning: incorrect type in argument 1 (different address spaces)
./arch/riscv/include/asm/uaccess.h:409:41: warning: incorrect type in argument 2 (different address spaces)

Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 0483179a

arch/riscv/include/asm/uaccess.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -400,13 +400,13 @@ extern unsigned long __must_check __asm_copy_from_user(void *to,
		static inline unsigned long
		raw_copy_from_user(void to, const void __user from, unsigned long n)
		{
		return __asm_copy_to_user(to, from, n);
		return __asm_copy_from_user(to, from, n);
		}

		static inline unsigned long
		raw_copy_to_user(void __user to, const void from, unsigned long n)
		{
		return __asm_copy_from_user(to, from, n);
		return __asm_copy_to_user(to, from, n);
		}

		extern long strncpy_from_user(char dest, const char __user src, long count);