On Wed, 8 Jul 2020 10:17:57 +0800 Lu Baolu <baolu...@linux.intel.com> wrote:
> Hi Jacob, > > On 7/8/20 7:43 AM, Jacob Pan wrote: > > IOMMU UAPI data size is filled by the user space which must be > > validated by ther kernel. To ensure backward compatibility, user > > data can only be extended by either re-purpose padding bytes or > > extend the variable sized union at the end. No size change is > > allowed before the union. Therefore, the minimum size is the offset > > of the union. > > > > To use offsetof() on the union, we must make it named. > > > > Link:https://lkml.org/lkml/2020/6/11/834 > > Please use lore.kernel.org links. > OK. will do. > Best regards, > baolu [Jacob Pan] _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
