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0cdda2ed AZ |
1 | dnl # |
2 | dnl # Linux 5.2/5.18 API | |
3 | dnl # | |
4 | dnl # In cdb4f26a63c391317e335e6e683a614358e70aeb ("kobject: kobj_type: remove default_attrs") | |
5 | dnl # struct kobj_type.default_attrs | |
6 | dnl # was finally removed in favour of | |
7 | dnl # struct kobj_type.default_groups | |
8 | dnl # | |
9 | dnl # This was added in aa30f47cf666111f6bbfd15f290a27e8a7b9d854 ("kobject: Add support for default attribute groups to kobj_type"), | |
10 | dnl # if both are present (5.2-5.17), we prefer default_groups; they're otherwise equivalent | |
11 | dnl # | |
12 | AC_DEFUN([ZFS_AC_KERNEL_SRC_SYSFS_DEFAULT_GROUPS], [ | |
13 | ZFS_LINUX_TEST_SRC([sysfs_default_groups], [ | |
14 | #include <linux/kobject.h> | |
15 | ],[ | |
16 | struct kobj_type __attribute__ ((unused)) kt = { | |
17 | .default_groups = (const struct attribute_group **)NULL }; | |
18 | ]) | |
19 | ]) | |
20 | ||
21 | AC_DEFUN([ZFS_AC_KERNEL_SYSFS_DEFAULT_GROUPS], [ | |
b9d98453 | 22 | AC_MSG_CHECKING([whether struct kobj_type.default_groups exists]) |
0cdda2ed AZ |
23 | ZFS_LINUX_TEST_RESULT([sysfs_default_groups],[ |
24 | AC_MSG_RESULT(yes) | |
25 | AC_DEFINE([HAVE_SYSFS_DEFAULT_GROUPS], 1, [struct kobj_type has default_groups]) | |
26 | ],[ | |
27 | AC_MSG_RESULT(no) | |
28 | ]) | |
29 | ]) | |
30 | ||
31 | AC_DEFUN([ZFS_AC_KERNEL_SRC_SYSFS], [ | |
32 | ZFS_AC_KERNEL_SRC_SYSFS_DEFAULT_GROUPS | |
33 | ]) | |
34 | ||
35 | AC_DEFUN([ZFS_AC_KERNEL_SYSFS], [ | |
36 | ZFS_AC_KERNEL_SYSFS_DEFAULT_GROUPS | |
37 | ]) |