kernel-access-ok-type.m4

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    1 dnl #
    2 dnl # Linux 5.0: access_ok() drops 'type' parameter:
    3 dnl #
    4 dnl # - access_ok(type, addr, size)
    5 dnl # + access_ok(addr, size)
    6 dnl #
    7 AC_DEFUN([ZFS_AC_KERNEL_SRC_ACCESS_OK_TYPE], [
    8         ZFS_LINUX_TEST_SRC([access_ok_type], [
    9                 #include <linux/uaccess.h>
   10         ],[
   11                 const void __user __attribute__((unused)) *addr =
   12                     (void *) 0xdeadbeef;
   13                 unsigned long __attribute__((unused)) size = 1;
   14                 int error __attribute__((unused)) = access_ok(0, addr, size);
   15         ])
   16 ])
   17 
   18 AC_DEFUN([ZFS_AC_KERNEL_ACCESS_OK_TYPE], [
   19         AC_MSG_CHECKING([whether access_ok() has 'type' parameter])
   20         ZFS_LINUX_TEST_RESULT([access_ok_type], [
   21                 AC_MSG_RESULT(yes)
   22                 AC_DEFINE(HAVE_ACCESS_OK_TYPE, 1,
   23                     [kernel has access_ok with 'type' parameter])
   24         ],[
   25                 AC_MSG_RESULT(no)
   26         ])
   27 ])

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FreeBSD/Linux Kernel Cross Reference sys/contrib/openzfs/config/kernel-access-ok-type.m4

FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/config/kernel-access-ok-type.m4