zfs-builds-mm/zfs-2.0.0-rc4/config/kernel-access-ok-type.m4
2020-10-22 14:20:35 +02:00

27 lines
747 B
Text

dnl #
dnl # Linux 5.0: access_ok() drops 'type' parameter:
dnl #
dnl # - access_ok(type, addr, size)
dnl # + access_ok(addr, size)
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_ACCESS_OK_TYPE], [
ZFS_LINUX_TEST_SRC([access_ok_type], [
#include <linux/uaccess.h>
],[
const void __user __attribute__((unused)) *addr =
(void *) 0xdeadbeef;
unsigned long __attribute__((unused)) size = 1;
int error __attribute__((unused)) = access_ok(0, addr, size);
])
])
AC_DEFUN([ZFS_AC_KERNEL_ACCESS_OK_TYPE], [
AC_MSG_CHECKING([whether access_ok() has 'type' parameter])
ZFS_LINUX_TEST_RESULT([access_ok_type], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_ACCESS_OK_TYPE, 1,
[kernel has access_ok with 'type' parameter])
],[
AC_MSG_RESULT(no)
])
])