22 lines
627 B
Text
22 lines
627 B
Text
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dnl #
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dnl # Linux 5.0: access_ok() drops 'type' parameter:
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dnl #
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dnl # - access_ok(type, addr, size)
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dnl # + access_ok(addr, size)
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_ACCESS_OK_TYPE], [
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AC_MSG_CHECKING([whether access_ok() has 'type' parameter])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/uaccess.h>
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],[
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const void __user __attribute__((unused)) *addr = (void *) 0xdeadbeef;
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unsigned long __attribute__((unused)) size = 1;
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int error __attribute__((unused)) = access_ok(0, addr, size);
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_ACCESS_OK_TYPE, 1, [kernel has access_ok with 'type' parameter])
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],[
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AC_MSG_RESULT(no)
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])
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])
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