ia64: csum_partial_copy_nocheck(): don't abuse csum_partial_copy_from_user()

Just inline the call and use memcpy() instead of __copy_from_user() and
note that the tail is precisely ia64 csum_partial().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2020-02-16 15:10:33 -05:00
commit cc03f19cfd