Re: [PATCH] Xen/gnttab: adjust two uses of sizeof()
Andrew Cooper <[email protected]> Thu, 30 Jul 2026 16:25:34 +0100
| Newsgroups | gmane.comp.emulators.xen.devel |
|---|---|
| Message-ID | <[email protected]> |
On 30/07/2026 3:57 pm, Jan Beulich wrote: > The use in gnttab_map() is latently buggy, as "frames" there is > xen_pfn_t *, not unsigned long *. ARM32 has 64bit xen_pfn_t's. At least it's wrong in the safe direction. > Adjust the correct use in > gnttab_map_frames_v2() as well, just to avoid the problematic pattern of > sizeof(<type>). > > Signed-off-by: Jan Beulich <[email protected]> Reviewed-by: Andrew Cooper <[email protected]>