mirror_zfs/config/kernel-add-disk.m4
Rob Norris 85391ee931 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
2026-01-08 15:08:03 -08:00

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dnl # SPDX-License-Identifier: CDDL-1.0
dnl #
dnl # 5.16 API change
dnl # add_disk grew a must-check return code
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_ADD_DISK], [
ZFS_LINUX_TEST_SRC([add_disk_ret], [
#include <linux/blkdev.h>
], [
struct gendisk *disk = NULL;
int error __attribute__ ((unused)) = add_disk(disk);
])
])
AC_DEFUN([ZFS_AC_KERNEL_ADD_DISK], [
AC_MSG_CHECKING([whether add_disk() returns int])
ZFS_LINUX_TEST_RESULT([add_disk_ret],
[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_ADD_DISK_RET, 1,
[add_disk() returns int])
], [
AC_MSG_RESULT(no)
])
])