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85391ee931
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
31 lines
962 B
Plaintext
31 lines
962 B
Plaintext
dnl # SPDX-License-Identifier: CDDL-1.0
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dnl #
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dnl # On certain architectures `__copy_from_user_inatomic`
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dnl # is a GPL exported variable and cannot be used by OpenZFS.
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dnl #
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dnl #
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dnl # Checking if `__copy_from_user_inatomic` is available.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC___COPY_FROM_USER_INATOMIC], [
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ZFS_LINUX_TEST_SRC([__copy_from_user_inatomic], [
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#include <linux/uaccess.h>
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], [
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int result __attribute__ ((unused)) = __copy_from_user_inatomic(NULL, NULL, 0);
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], [], [ZFS_META_LICENSE])
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])
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AC_DEFUN([ZFS_AC_KERNEL___COPY_FROM_USER_INATOMIC], [
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AC_MSG_CHECKING([whether __copy_from_user_inatomic is available])
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ZFS_LINUX_TEST_RESULT([__copy_from_user_inatomic_license], [
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AC_MSG_RESULT(yes)
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], [
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AC_MSG_RESULT(no)
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AC_MSG_ERROR([
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*** The `__copy_from_user_inatomic()` Linux kernel function is
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*** incompatible with the CDDL license and will prevent the module
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*** linking stage from succeeding. OpenZFS cannot be compiled.
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])
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])
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])
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