The ptr is a pointer to userspace memory. So we need annotate it with __user otherwise we may get sparse warnings like:
drivers/vhost/vhost.c:1603:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const *__gu_ptr @@ got unsigned int [noderef] [usertypvoid const *__gu_ptr @@ drivers/vhost/vhost.c:1603:13: sparse: expected void const *__gu_ptr drivers/vhost/vhost.c:1603:13: sparse: got unsigned int [noderef] [usertype] <asn:1> *idxp Cc: Geert Uytterhoeven <[email protected]> Cc: [email protected] Cc: [email protected] Reported-by: kbuild test robot <[email protected]> Signed-off-by: Jason Wang <[email protected]> --- arch/m68k/include/asm/uaccess_mm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/m68k/include/asm/uaccess_mm.h b/arch/m68k/include/asm/uaccess_mm.h index 7e85de984df1..9ae9f8d05925 100644 --- a/arch/m68k/include/asm/uaccess_mm.h +++ b/arch/m68k/include/asm/uaccess_mm.h @@ -142,7 +142,7 @@ asm volatile ("\n" \ __get_user_asm(__gu_err, x, ptr, u32, l, r, -EFAULT); \ break; \ case 8: { \ - const void *__gu_ptr = (ptr); \ + const void __user *__gu_ptr = (ptr); \ union { \ u64 l; \ __typeof__(*(ptr)) t; \ -- 2.20.1
