[0/3] Xen: grant table related adjustments following recent XSAs

Message

Jan Beulich March 10, 2021, 10:44 a.m. UTC

While addressing the XSAs a number of further oddities were noticed.
Try to take care of them.

1: gntdev: don't needlessly allocate k{,un}map_ops[]
2: gnttab: introduce common INVALID_GRANT_{HANDLE,REF}
3: gntdev: don't needlessly use kvcalloc()

Jan

Comments

Boris Ostrovsky March 11, 2021, 2:38 p.m. UTC | #1

On 3/10/21 5:44 AM, Jan Beulich wrote:
> While addressing the XSAs a number of further oddities were noticed.
> Try to take care of them.
>
> 1: gntdev: don't needlessly allocate k{,un}map_ops[]
> 2: gnttab: introduce common INVALID_GRANT_{HANDLE,REF}
> 3: gntdev: don't needlessly use kvcalloc()


Applied to for-linus-5.12b