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
..
asm-offsets.h
asm.h	RISC-V: use RISCV_{INT,SHORT} instead of {INT,SHORT} for asm macros	2017-11-30 10:01:10 -08:00
atomic.h	riscv/atomic: Strengthen implementations with fences	2018-04-02 19:59:44 -07:00
barrier.h	riscv/barrier: Define __smp_{store_release,load_acquire}	2018-04-02 19:59:43 -07:00
bitops.h	RISC-V: __test_and_op_bit_ord should be strongly ordered	2017-11-28 14:04:05 -08:00
bug.h	RISC-V: use RISCV_{INT,SHORT} instead of {INT,SHORT} for asm macros	2017-11-30 10:01:10 -08:00
cache.h
cacheflush.h	riscv: use NULL instead of a plain 0	2018-06-07 08:01:50 -07:00
cmpxchg.h	riscv/atomic: Strengthen implementations with fences	2018-04-02 19:59:44 -07:00
compat.h
csr.h	riscv: rename sptbr to satp	2018-01-30 19:16:12 -08:00
current.h
delay.h
elf.h
fence.h	riscv/spinlock: Strengthen implementations with fences	2018-04-02 19:59:43 -07:00
ftrace.h	riscv/ftrace: Add DYNAMIC_FTRACE_WITH_REGS support	2018-04-02 19:59:13 -07:00
hwcap.h
io.h	riscv: remove CONFIG_MMU ifdefs	2018-01-07 15:14:39 -08:00
irq.h
irqflags.h	riscv: rename SR_* constants to match the spec	2018-01-07 15:14:39 -08:00
Kbuild	riscv: there is no <asm/handle_irq.h>	2018-04-24 10:54:23 -07:00
kprobes.h
linkage.h
mmu_context.h	riscv: inline set_pgdir into its only caller	2018-01-30 19:16:17 -08:00
mmu.h	RISC-V: Flush I$ when making a dirty page executable	2017-11-30 12:58:25 -08:00
module.h	RISC-V: Add section of GOT.PLT for kernel module	2018-04-02 20:00:54 -07:00
page.h
pci.h
pgalloc.h
pgtable-32.h
pgtable-64.h
pgtable-bits.h
pgtable.h	riscv: remove CONFIG_MMU ifdefs	2018-01-07 15:14:39 -08:00
processor.h
ptrace.h	riscv: rename SR_* constants to match the spec	2018-01-07 15:14:39 -08:00
sbi.h
smp.h
spinlock_types.h
spinlock.h	riscv/spinlock: Strengthen implementations with fences	2018-04-02 19:59:43 -07:00
string.h
switch_to.h
syscall.h
thread_info.h	Construct init thread stack in the linker script rather than by union	2018-01-09 23:21:02 +00:00
timex.h	RISC-V: Use define for get_cycles like other architectures	2017-11-30 10:12:21 -08:00
tlb.h
tlbflush.h	riscv: use NULL instead of a plain 0	2018-06-07 08:01:50 -07:00
uaccess.h	riscv: split the declaration of __copy_user	2018-06-09 12:34:31 -07:00
unistd.h	riscv: remove unused __ARCH_HAVE_MMU define	2018-01-30 19:11:43 -08:00
vdso.h	RISC-V: Allow userspace to flush the instruction cache	2017-11-30 12:58:29 -08:00
word-at-a-time.h