config/kernel-add-disk.m4

   1 dnl #
   2 dnl # 5.16 API change
   3 dnl # add_disk grew a must-check return code
   4 dnl #
   5 AC_DEFUN([ZFS_AC_KERNEL_SRC_ADD_DISK], [
   6         ZFS_LINUX_TEST_SRC([add_disk_ret], [
   7                 #include <linux/blkdev.h>
   8         ], [
   9                 struct gendisk *disk = NULL;
  10                 int error __attribute__ ((unused)) = add_disk(disk);
  11         ])
  12 ])
  13
  14 AC_DEFUN([ZFS_AC_KERNEL_ADD_DISK], [
  15         AC_MSG_CHECKING([whether add_disk() returns int])
  16         ZFS_LINUX_TEST_RESULT([add_disk_ret],
  17         [
  18                 AC_MSG_RESULT(yes)
  19                 AC_DEFINE(HAVE_ADD_DISK_RET, 1,
  20                     [add_disk() returns int])
  21         ], [
  22                 AC_MSG_RESULT(no)
  23         ])
  24 ])