Luc Van Oostenryck 86406d51d3 riscv: split the declaration of __copy_user ... We use a single __copy_user assembly function to copy memory both from and to userspace. While this works, it triggers sparse errors because we're implicitly casting between the kernel and user address spaces by calling __copy_user. This patch splits the C declaration into a pair of functions, __asm_copy_{to,from}_user, that have sane semantics WRT __user. This split make things fine from sparse's point of view. The assembly implementation keeps a single definition but add a double ENTRY() for it, one for __asm_copy_to_user and another one for __asm_copy_from_user. The result is a spare-safe implementation that pays no performance or code size penalty. Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>		2018-06-09 12:34:31 -07:00
..
configs	RISC-V: Enable module support in defconfig	2018-04-02 20:00:56 -07:00
include	riscv: split the declaration of __copy_user	2018-06-09 12:34:31 -07:00
kernel	riscv: split the declaration of __copy_user	2018-06-09 12:34:31 -07:00
lib	riscv: split the declaration of __copy_user	2018-06-09 12:34:31 -07:00
mm	RISC-V changes for 4.16	2018-02-07 11:33:08 -08:00
Kconfig	riscv: select DMA_DIRECT_OPS instead of redefining it	2018-04-24 10:54:08 -07:00
Makefile	RISC-V: Fixes to module loading	2018-04-02 20:43:14 -07:00