config/kernel-genhd-flags.m4

   1 dnl #
   2 dnl # 5.17 API change,
   3 dnl #
   4 dnl # GENHD_FL_EXT_DEVT flag removed
   5 dnl # GENHD_FL_NO_PART_SCAN renamed GENHD_FL_NO_PART
   6 dnl #
   7 AC_DEFUN([ZFS_AC_KERNEL_SRC_GENHD_FLAGS], [
   8
   9         ZFS_LINUX_TEST_SRC([genhd_fl_ext_devt], [
  10                 #include <linux/blkdev.h>
  11         ], [
  12                 int flags __attribute__ ((unused)) = GENHD_FL_EXT_DEVT;
  13         ])
  14
  15         ZFS_LINUX_TEST_SRC([genhd_fl_no_part], [
  16                 #include <linux/blkdev.h>
  17         ], [
  18                 int flags __attribute__ ((unused)) = GENHD_FL_NO_PART;
  19         ])
  20
  21         ZFS_LINUX_TEST_SRC([genhd_fl_no_part_scan], [
  22                 #include <linux/blkdev.h>
  23         ], [
  24                 int flags __attribute__ ((unused)) = GENHD_FL_NO_PART_SCAN;
  25         ])
  26 ])
  27
  28 AC_DEFUN([ZFS_AC_KERNEL_GENHD_FLAGS], [
  29
  30         AC_MSG_CHECKING([whether GENHD_FL_EXT_DEVT flag is available])
  31         ZFS_LINUX_TEST_RESULT([genhd_fl_ext_devt], [
  32                 AC_MSG_RESULT(yes)
  33                 AC_DEFINE(ZFS_GENHD_FL_EXT_DEVT, GENHD_FL_EXT_DEVT,
  34                     [GENHD_FL_EXT_DEVT flag is available])
  35         ], [
  36                 AC_MSG_RESULT(no)
  37                 AC_DEFINE(ZFS_GENHD_FL_EXT_DEVT, 0,
  38                     [GENHD_FL_EXT_DEVT flag is not available])
  39         ])
  40
  41         AC_MSG_CHECKING([whether GENHD_FL_NO_PART flag is available])
  42         ZFS_LINUX_TEST_RESULT([genhd_fl_no_part], [
  43                 AC_MSG_RESULT(yes)
  44                 AC_DEFINE(ZFS_GENHD_FL_NO_PART, GENHD_FL_NO_PART,
  45                     [GENHD_FL_NO_PART flag is available])
  46         ], [
  47                 AC_MSG_RESULT(no)
  48
  49                 AC_MSG_CHECKING([whether GENHD_FL_NO_PART_SCAN flag is available])
  50                 ZFS_LINUX_TEST_RESULT([genhd_fl_no_part_scan], [
  51                         AC_MSG_RESULT(yes)
  52                         AC_DEFINE(ZFS_GENHD_FL_NO_PART, GENHD_FL_NO_PART_SCAN,
  53                             [GENHD_FL_NO_PART_SCAN flag is available])
  54                 ], [
  55                         ZFS_LINUX_TEST_ERROR([GENHD_FL_NO_PART|GENHD_FL_NO_PART_SCAN])
  56                 ])
  57         ])
  58 ])