Sparse reports dereference of a __user pointer. copy_mc_to_user() takes a __user pointer, verifies it, then calls the generic copy routine copy_mc_generic().
As we have verified the pointer, cast out the __user annotation when passing to copy_mc_generic(). Signed-off-by: Benjamin Gray <[email protected]> --- arch/powerpc/include/asm/uaccess.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h index fb725ec77926..f1f9890f50d3 100644 --- a/arch/powerpc/include/asm/uaccess.h +++ b/arch/powerpc/include/asm/uaccess.h @@ -374,7 +374,7 @@ copy_mc_to_user(void __user *to, const void *from, unsigned long n) if (check_copy_size(from, n, true)) { if (access_ok(to, n)) { allow_write_to_user(to, n); - n = copy_mc_generic((void *)to, from, n); + n = copy_mc_generic((void __force *)to, from, n); prevent_write_to_user(to, n); } } -- 2.39.2
