mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-12-26 03:09:34 +03:00
849c14e048
Linux 5.12 PPC 5.12 get_user() and __copy_from_user_inatomic() inline helpers very indirectly include a reference to the GPL'd array mmu_feature_keys[] and fails to build. Workaround this by using copy_from_user() and throwing EFAULT for any calls to __copy_from_user_inatomic(). This is a workaround until a fix for Linux commit 7613f5a66becfd0e43a0f34de8518695888f5458 "powerpc/64s/kuap: Use mmu_has_feature()" is fully addressed. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Authored-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: szubersk <szuberskidamian@gmail.com> Closes #11958 Closes #12590 Closes #13367
27 lines
798 B
Plaintext
27 lines
798 B
Plaintext
dnl #
|
|
dnl # On certain architectures `__copy_from_user_inatomic`
|
|
dnl # is a GPL exported variable and cannot be used by OpenZFS.
|
|
dnl #
|
|
|
|
dnl #
|
|
dnl # Checking if `__copy_from_user_inatomic` is available.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC___COPY_FROM_USER_INATOMIC], [
|
|
ZFS_LINUX_TEST_SRC([__copy_from_user_inatomic], [
|
|
#include <linux/uaccess.h>
|
|
], [
|
|
int result __attribute__ ((unused)) = __copy_from_user_inatomic(NULL, NULL, 0);
|
|
], [], [ZFS_META_LICENSE])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL___COPY_FROM_USER_INATOMIC], [
|
|
AC_MSG_CHECKING([whether __copy_from_user_inatomic is available])
|
|
ZFS_LINUX_TEST_RESULT([__copy_from_user_inatomic_license], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE___COPY_FROM_USER_INATOMIC, 1,
|
|
[__copy_from_user_inatomic is available])
|
|
], [
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|