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85391ee931
Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #18077
39 lines
1.2 KiB
Plaintext
39 lines
1.2 KiB
Plaintext
dnl # SPDX-License-Identifier: CDDL-1.0
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dnl #
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dnl # Linux 5.2/5.18 API
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dnl #
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dnl # In cdb4f26a63c391317e335e6e683a614358e70aeb ("kobject: kobj_type: remove default_attrs")
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dnl # struct kobj_type.default_attrs
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dnl # was finally removed in favour of
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dnl # struct kobj_type.default_groups
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dnl #
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dnl # This was added in aa30f47cf666111f6bbfd15f290a27e8a7b9d854 ("kobject: Add support for default attribute groups to kobj_type"),
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dnl # if both are present (5.2-5.17), we prefer default_groups; they're otherwise equivalent
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_SYSFS_DEFAULT_GROUPS], [
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ZFS_LINUX_TEST_SRC([sysfs_default_groups], [
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#include <linux/kobject.h>
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],[
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struct kobj_type __attribute__ ((unused)) kt = {
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.default_groups = (const struct attribute_group **)NULL };
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_SYSFS_DEFAULT_GROUPS], [
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AC_MSG_CHECKING([whether struct kobj_type.default_groups exists])
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ZFS_LINUX_TEST_RESULT([sysfs_default_groups],[
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AC_MSG_RESULT(yes)
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AC_DEFINE([HAVE_SYSFS_DEFAULT_GROUPS], 1, [struct kobj_type has default_groups])
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],[
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AC_MSG_RESULT(no)
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_SRC_SYSFS], [
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ZFS_AC_KERNEL_SRC_SYSFS_DEFAULT_GROUPS
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])
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AC_DEFUN([ZFS_AC_KERNEL_SYSFS], [
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ZFS_AC_KERNEL_SYSFS_DEFAULT_GROUPS
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])
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