build: add SPDX license tags to build system files

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
2026-02-06 21:26:24 +01:00 · 2025-12-20 16:45:07 +11:00
parent aca58dbb65
commit 85391ee931
212 changed files with 212 additions and 0 deletions
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 CLEANFILES =
 dist_noinst_DATA =
 INSTALL_DATA_HOOKS =
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,3 +1,4 @@
 #!/bin/sh
+# SPDX-License-Identifier: CDDL-1.0

 autoreconf -fiv "$(dirname "$0")" && rm -rf "$(dirname "$0")"/autom4te.cache
--- a/cmd/Makefile.am
+++ b/cmd/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 bin_SCRIPTS =
 bin_PROGRAMS =
 sbin_SCRIPTS =
--- a/cmd/raidz_test/Makefile.am
+++ b/cmd/raidz_test/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 raidz_test_CFLAGS   = $(AM_CFLAGS)   $(KERNEL_CFLAGS)
 raidz_test_CPPFLAGS = $(AM_CPPFLAGS) $(LIBZPOOL_CPPFLAGS)

--- a/cmd/zdb/Makefile.am
+++ b/cmd/zdb/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 zdb_CPPFLAGS = $(AM_CPPFLAGS) $(LIBZPOOL_CPPFLAGS)
 zdb_CFLAGS   = $(AM_CFLAGS) $(LIBCRYPTO_CFLAGS)

--- a/cmd/zed/Makefile.am
+++ b/cmd/zed/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 include $(srcdir)/%D%/zed.d/Makefile.am

 zed_CFLAGS  = $(AM_CFLAGS)
--- a/cmd/zed/zed.d/Makefile.am
+++ b/cmd/zed/zed.d/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 zedconfdir = $(sysconfdir)/zfs/zed.d
 dist_zedconf_DATA = \
 	%D%/zed-functions.sh \
--- a/cmd/zfs/Makefile.am
+++ b/cmd/zfs/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 sbin_PROGRAMS   += zfs
 CPPCHECKTARGETS += zfs

--- a/cmd/zinject/Makefile.am
+++ b/cmd/zinject/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 sbin_PROGRAMS   += zinject
 CPPCHECKTARGETS += zinject

--- a/cmd/zpool/Makefile.am
+++ b/cmd/zpool/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 zpool_CFLAGS  = $(AM_CFLAGS)
 zpool_CFLAGS += $(LIBBLKID_CFLAGS) $(LIBUUID_CFLAGS)

--- a/cmd/zpool_influxdb/Makefile.am
+++ b/cmd/zpool_influxdb/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 zfsexec_PROGRAMS += zpool_influxdb
 CPPCHECKTARGETS  += zpool_influxdb

--- a/cmd/zstream/Makefile.am
+++ b/cmd/zstream/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 zstream_CPPFLAGS = $(AM_CPPFLAGS) $(LIBZPOOL_CPPFLAGS)

 sbin_PROGRAMS   += zstream
--- a/config/CppCheck.am
+++ b/config/CppCheck.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 #
 # cppcheck for userspace – nodist_*_SOURCES are kernel code and cppcheck goes crazy on them.
 #
--- a/config/Rules.am
+++ b/config/Rules.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 #
 # Default build rules for all user space components, every Makefile.am
 # should include these rules and override or extend them as needed.
--- a/config/Shellcheck.am
+++ b/config/Shellcheck.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 # Global ShellCheck exclusions:
 #
 # ShellCheck can't follow non-constant source. Use a directive to specify location. [SC1090]
--- a/config/Substfiles.am
+++ b/config/Substfiles.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 subst_sed_cmd = \
 	-e 's|@abs_top_srcdir[@]|$(abs_top_srcdir)|g' \
 	-e 's|@bindir[@]|$(bindir)|g' \
--- a/config/always-arch.m4
+++ b/config/always-arch.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Set the target cpu architecture.  This allows the
 dnl # following syntax to be used in a Makefile.am.
--- a/config/always-compiler-options.m4
+++ b/config/always-compiler-options.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Enabled -fsanitize=address if supported by $CC.
 dnl #
--- a/config/always-cppcheck.m4
+++ b/config/always-cppcheck.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Check if cppcheck is available.
 dnl #
--- a/config/always-parallel.m4
+++ b/config/always-parallel.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Check if GNU parallel is available.
 dnl #
--- a/config/always-python.m4
+++ b/config/always-python.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # The majority of the python scripts are written to be compatible
 dnl # with Python 3.6. This option is intended to
--- a/config/always-pyzfs.m4
+++ b/config/always-pyzfs.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # ZFS_AC_PYTHON_MODULE(module_name, [action-if-true], [action-if-false])
 dnl #
--- a/config/always-sed.m4
+++ b/config/always-sed.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Set the flags used for sed in-place edits.
 dnl #
--- a/config/always-shellcheck.m4
+++ b/config/always-shellcheck.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Check if shellcheck and/or checkbashisms are available.
 dnl #
--- a/config/always-system.m4
+++ b/config/always-system.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Set the target system
 dnl #
--- a/config/ax_compare_version.m4
+++ b/config/ax_compare_version.m4
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: FSFAP
 # ===========================================================================
 #    https://www.gnu.org/software/autoconf-archive/ax_compare_version.html
 # ===========================================================================
--- a/config/ax_count_cpus.m4
+++ b/config/ax_count_cpus.m4
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: FSFAP
 # ===========================================================================
 #      https://www.gnu.org/software/autoconf-archive/ax_count_cpus.html
 # ===========================================================================
--- a/config/ax_python_devel.m4
+++ b/config/ax_python_devel.m4
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-3.0-or-later WITH Autoconf-exception-macro
 # ===========================================================================
 #     https://www.gnu.org/software/autoconf-archive/ax_python_devel.html
 # ===========================================================================
--- a/config/ax_restore_flags.m4
+++ b/config/ax_restore_flags.m4
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: FSFAP
 # ===========================================================================
 #     http://www.gnu.org/software/autoconf-archive/ax_restore_flags.html
 # ===========================================================================
--- a/config/ax_save_flags.m4
+++ b/config/ax_save_flags.m4
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: FSFAP
 # ===========================================================================
 #       http://www.gnu.org/software/autoconf-archive/ax_save_flags.html
 # ===========================================================================
--- a/config/deb.am
+++ b/config/deb.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: CDDL-1.0
 PHONY += deb-kmod deb-dkms deb-utils deb deb-local native-deb-local \
 	native-deb-utils native-deb-kmod native-deb

--- a/config/find_system_library.m4
+++ b/config/find_system_library.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 # find_system_lib.m4 - Macros to search for a system library.   -*- Autoconf -*-

 dnl requires pkg.m4 from pkg-config
--- a/config/gettext.m4
+++ b/config/gettext.m4
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: FSFULLR
 # gettext.m4 serial 70 (gettext-0.20)
 dnl Copyright (C) 1995-2014, 2016, 2018 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
--- a/config/host-cpu-c-abi.m4
+++ b/config/host-cpu-c-abi.m4
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: FSFULLR
 # host-cpu-c-abi.m4 serial 11
 dnl Copyright (C) 2002-2019 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
--- a/config/iconv.m4
+++ b/config/iconv.m4
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: FSFULLR
 # iconv.m4 serial 21
 dnl Copyright (C) 2000-2002, 2007-2014, 2016-2019 Free Software Foundation,
 dnl Inc.
--- a/config/kernel-access-ok-type.m4
+++ b/config/kernel-access-ok-type.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Linux 5.0: access_ok() drops 'type' parameter:
 dnl #
--- a/config/kernel-acl.m4
+++ b/config/kernel-acl.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 3.1 API change,
 dnl # posix_acl_equiv_mode now wants an umode_t instead of a mode_t
--- a/config/kernel-add-disk.m4
+++ b/config/kernel-add-disk.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 5.16 API change
 dnl # add_disk grew a must-check return code
--- a/config/kernel-assign_str.m4
+++ b/config/kernel-assign_str.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 6.10 kernel, check number of args of __assign_str() for trace:
 dnl
--- a/config/kernel-automount.m4
+++ b/config/kernel-automount.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.37 API change
 dnl # The dops->d_automount() dentry operation was added as a clean
--- a/config/kernel-bio.m4
+++ b/config/kernel-bio.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Linux 4.8 API,
 dnl #
--- a/config/kernel-bio_max_segs.m4
+++ b/config/kernel-bio_max_segs.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 5.12 API change removes BIO_MAX_PAGES in favor of bio_max_segs()
 dnl # which will handle the logic of setting the upper-bound to a
--- a/config/kernel-blk-queue.m4
+++ b/config/kernel-blk-queue.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.39 API change,
 dnl # blk_start_plug() and blk_finish_plug()
--- a/config/kernel-blkdev.m4
+++ b/config/kernel-blkdev.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.38 API change,
 dnl # Added blkdev_get_by_path()
--- a/config/kernel-block-device-operations.m4
+++ b/config/kernel-block-device-operations.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.38 API change
 dnl #
--- a/config/kernel-commit-metadata.m4
+++ b/config/kernel-commit-metadata.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.33 API change
 dnl # Added eops->commit_metadata() callback to allow the underlying
--- a/config/kernel-config-defined.m4
+++ b/config/kernel-config-defined.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Certain kernel build options are not supported.  These must be
 dnl # detected at configure time and cause a build failure.  Otherwise
--- a/config/kernel-copy-from-user-inatomic.m4
+++ b/config/kernel-copy-from-user-inatomic.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # On certain architectures `__copy_from_user_inatomic`
 dnl # is a GPL exported variable and cannot be used by OpenZFS.
--- a/config/kernel-cpu_has_feature.m4
+++ b/config/kernel-cpu_has_feature.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # cpu_has_feature() may referencing GPL-only cpu_feature_keys on powerpc
 dnl #
--- a/config/kernel-declare-event-class.m4
+++ b/config/kernel-declare-event-class.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Ensure the DECLARE_EVENT_CLASS macro is available to non-GPL modules.
 dnl #
--- a/config/kernel-dentry-operations.m4
+++ b/config/kernel-dentry-operations.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.28 API change
 dnl # Added d_obtain_alias() helper function.
--- a/config/kernel-discard-granularity.m4
+++ b/config/kernel-discard-granularity.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.33 API change
 dnl # Discard granularity and alignment restrictions may now be set.
--- a/config/kernel-drop-inode.m4
+++ b/config/kernel-drop-inode.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 6.18 API change
 dnl # - generic_drop_inode() renamed to inode_generic_drop()
--- a/config/kernel-file.m4
+++ b/config/kernel-file.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 6.12 removed f_version from struct file
 dnl #
--- a/config/kernel-filemap-splice-read.m4
+++ b/config/kernel-filemap-splice-read.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 AC_DEFUN([ZFS_AC_KERNEL_SRC_COPY_SPLICE_READ], [
 	dnl #
 	dnl # Kernel 6.5 - generic_file_splice_read was removed in favor
--- a/config/kernel-flush_dcache_page.m4
+++ b/config/kernel-flush_dcache_page.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Starting from Linux 5.13, flush_dcache_page() becomes an inline
 dnl # function and may indirectly referencing GPL-only symbols:
--- a/config/kernel-fmode-t.m4
+++ b/config/kernel-fmode-t.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.28 API change,
 dnl # check if fmode_t typedef is defined
--- a/config/kernel-follow-down-one.m4
+++ b/config/kernel-follow-down-one.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.38 API change
 dnl # follow_down() renamed follow_down_one().  The original follow_down()
--- a/config/kernel-fpu.m4
+++ b/config/kernel-fpu.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Handle differences in kernel FPU code.
 dnl #
--- a/config/kernel-free-inode.m4
+++ b/config/kernel-free-inode.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Linux 5.2 API change
 dnl #
--- a/config/kernel-fst-mount.m4
+++ b/config/kernel-fst-mount.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.38 API change
 dnl # The .get_sb callback has been replaced by a .mount callback
--- a/config/kernel-fsync-bdev.m4
+++ b/config/kernel-fsync-bdev.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 6.6 API change,
 dnl # fsync_bdev was removed in favor of sync_blockdev
--- a/config/kernel-generic_fadvise.m4
+++ b/config/kernel-generic_fadvise.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 5.3 API change
 dnl # The generic_fadvise() function is present since 4.19 kernel
--- a/config/kernel-generic_fillattr.m4
+++ b/config/kernel-generic_fillattr.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 5.12 API
 dnl #
--- a/config/kernel-generic_io_acct.m4
+++ b/config/kernel-generic_io_acct.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Check for generic io accounting interface.
 dnl #
--- a/config/kernel-genhd-flags.m4
+++ b/config/kernel-genhd-flags.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 5.17 API change,
 dnl #
--- a/config/kernel-get-disk-ro.m4
+++ b/config/kernel-get-disk-ro.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.x API change
 dnl #
--- a/config/kernel-iattr-vfsid.m4
+++ b/config/kernel-iattr-vfsid.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 6.0 API change
 dnl # struct iattr has two unions for the uid and gid
--- a/config/kernel-idmap_mnt_api.m4
+++ b/config/kernel-idmap_mnt_api.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 5.12 API
 dnl #
--- a/config/kernel-inode-create.m4
+++ b/config/kernel-inode-create.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 AC_DEFUN([ZFS_AC_KERNEL_SRC_CREATE], [
 	dnl #
 	dnl # 6.3 API change
--- a/config/kernel-inode-getattr.m4
+++ b/config/kernel-inode-getattr.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_GETATTR], [
 	dnl #
 	dnl # Linux 6.3 API
--- a/config/kernel-inode-lookup.m4
+++ b/config/kernel-inode-lookup.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 3.6 API change
 dnl #
--- a/config/kernel-inode-permission.m4
+++ b/config/kernel-inode-permission.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 AC_DEFUN([ZFS_AC_KERNEL_SRC_PERMISSION], [
 	dnl #
 	dnl # 6.3 API change
--- a/config/kernel-inode-setattr.m4
+++ b/config/kernel-inode-setattr.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_SETATTR], [
 	dnl #
 	dnl # Linux 6.3 API
--- a/config/kernel-inode-state.m4
+++ b/config/kernel-inode-state.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 6.19 API change. inode->i_state no longer accessible directly; helper
 dnl # functions exist.
--- a/config/kernel-inode-times.m4
+++ b/config/kernel-inode-times.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_TIMES], [

 	dnl #
--- a/config/kernel-insert-inode-locked.m4
+++ b/config/kernel-insert-inode-locked.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.28 API change
 dnl # Added insert_inode_locked() helper function.
--- a/config/kernel-is_owner_or_cap.m4
+++ b/config/kernel-is_owner_or_cap.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.39 API change,
 dnl # The is_owner_or_cap() macro was renamed to inode_owner_or_capable(),
--- a/config/kernel-kasan-enabled.m4
+++ b/config/kernel-kasan-enabled.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 6.18: some architectures and config option causes the kasan_ inline
 dnl #       functions to reference the GPL-only symbol 'kasan_flag_enabled',
--- a/config/kernel-kmap-atomic-args.m4
+++ b/config/kernel-kmap-atomic-args.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 2.6.37 API change
 dnl # kmap_atomic changed from assigning hard-coded named slot to using
--- a/config/kernel-kmap-local-page.m4
+++ b/config/kernel-kmap-local-page.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 5.11 API change
 dnl # kmap_atomic() was deprecated in favor of kmap_local_page()
--- a/config/kernel-kmem.m4
+++ b/config/kernel-kmem.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Enabled by default it provides a minimal level of memory tracking.
 dnl # A total count of bytes allocated is kept for each alloc and free.
--- a/config/kernel-kthread.m4
+++ b/config/kernel-kthread.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 AC_DEFUN([ZFS_AC_KERNEL_KTHREAD_COMPLETE_AND_EXIT], [
 	dnl #
 	dnl # 5.17 API,
--- a/config/kernel-kuid-helpers.m4
+++ b/config/kernel-kuid-helpers.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 3.5 API change,
 dnl # Since usernamespaces were introduced in kernel version 3.5, it
--- a/config/kernel-kuidgid.m4
+++ b/config/kernel-kuidgid.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 3.8 API change,
 dnl # User namespaces, use kuid_t in place of uid_t where available.
--- a/config/kernel-make-request-fn.m4
+++ b/config/kernel-make-request-fn.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Check for make_request_fn interface.
 dnl #
--- a/config/kernel-misc-minor.m4
+++ b/config/kernel-misc-minor.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Determine an available miscellaneous minor number which can be used
 dnl # for the /dev/zfs device.  This is needed because kernel module
--- a/config/kernel-mkdir.m4
+++ b/config/kernel-mkdir.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Supported mkdir() interfaces checked newest to oldest.
 dnl #
--- a/config/kernel-mknod.m4
+++ b/config/kernel-mknod.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 AC_DEFUN([ZFS_AC_KERNEL_SRC_MKNOD], [
 	dnl #
 	dnl # 6.3 API change
--- a/config/kernel-mm-page-flags.m4
+++ b/config/kernel-mm-page-flags.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 AC_DEFUN([ZFS_AC_KERNEL_SRC_MM_PAGE_FLAG_ERROR], [
 	ZFS_LINUX_TEST_SRC([mm_page_flag_error], [
 		#include <linux/page-flags.h>
--- a/config/kernel-mm-pagemap.m4
+++ b/config/kernel-mm-pagemap.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 AC_DEFUN([ZFS_AC_KERNEL_SRC_MM_PAGE_SIZE], [
 	ZFS_LINUX_TEST_SRC([page_size], [
 		#include <linux/mm.h>
--- a/config/kernel-namespace.m4
+++ b/config/kernel-namespace.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 6.18 API change
 dnl # ns->ops->type was moved to ns->ns.ns_type (struct ns_common)
--- a/config/kernel-objtool.m4
+++ b/config/kernel-objtool.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Detect objtool functionality.
 dnl #
--- a/config/kernel-pagemap-folio_wait_bit.m4
+++ b/config/kernel-pagemap-folio_wait_bit.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Linux 5.16 no longer allows directly calling wait_on_page_bit, and
 dnl # instead requires you to call folio-specific functions. In this case,
--- a/config/kernel-pagemap-readahead-page.m4
+++ b/config/kernel-pagemap-readahead-page.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Linux 6.16 removed readahead_page
 dnl #
--- a/config/kernel-pde-data.m4
+++ b/config/kernel-pde-data.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 5.17 API: PDE_DATA() renamed to pde_data(),
 dnl # 359745d78351c6f5442435f81549f0207ece28aa ("proc: remove PDE_DATA() completely")
--- a/config/kernel-percpu.m4
+++ b/config/kernel-percpu.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 5.10 API change,
 dnl # The "count" was moved into ref->data, from ref
--- a/config/kernel-pin-user-pages.m4
+++ b/config/kernel-pin-user-pages.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # Check for pin_user_pages_unlocked().
 dnl #
--- a/config/kernel-proc-operations.m4
+++ b/config/kernel-proc-operations.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 dnl #
 dnl # 5.6 API Change
 dnl # The proc_ops structure was introduced to replace the use of
--- a/config/kernel-reclaim_state.m4
+++ b/config/kernel-reclaim_state.m4
@@ -1,3 +1,4 @@
+dnl # SPDX-License-Identifier: CDDL-1.0
 AC_DEFUN([ZFS_AC_KERNEL_SRC_RECLAIMED], [
 	dnl #
 	dnl # 6.4 API change
--- a/Show More
+++ b/Show More