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ztest: use ASSERT3P to compare pointers
[FreeBSD/FreeBSD.git] / config / kernel-copy-from-user-inatomic.m4
1 dnl #
2 dnl # On certain architectures `__copy_from_user_inatomic`
3 dnl # is a GPL exported variable and cannot be used by OpenZFS.
4 dnl #
5
6 dnl #
7 dnl # Checking if `__copy_from_user_inatomic` is available.
8 dnl #
9 AC_DEFUN([ZFS_AC_KERNEL_SRC___COPY_FROM_USER_INATOMIC], [
10         ZFS_LINUX_TEST_SRC([__copy_from_user_inatomic], [
11                 #include <linux/uaccess.h>
12         ], [
13                 int result __attribute__ ((unused)) = __copy_from_user_inatomic(NULL, NULL, 0);
14         ], [], [ZFS_META_LICENSE])
15 ])
16
17 AC_DEFUN([ZFS_AC_KERNEL___COPY_FROM_USER_INATOMIC], [
18         AC_MSG_CHECKING([whether __copy_from_user_inatomic is available])
19         ZFS_LINUX_TEST_RESULT([__copy_from_user_inatomic_license], [
20                 AC_MSG_RESULT(yes)
21         ], [
22                 AC_MSG_RESULT(no)
23                 AC_MSG_ERROR([
24         *** The `__copy_from_user_inatomic()` Linux kernel function is
25         *** incompatible with the CDDL license and will prevent the module
26         *** linking stage from succeeding.  OpenZFS cannot be compiled.
27                 ])
28         ])
29 ])