switch cmsghdr_from_user_compat_to_kern() to copy_from_user()
no point getting compat_cmsghdr field-by-field Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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no point getting compat_cmsghdr field-by-field Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>