[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 4/4] xen/public: arm: rework the macro set_xen_guest_handle_raw
On 03/11/15 14:18, Stefano Stabellini wrote: >> +#define set_xen_guest_handle_raw(hnd, val) \ >> + do { \ >> + /* Check if the handle is 64-bit (i.e 8-byte) */ \ >> + (void) sizeof(struct { int : -!!(sizeof (hnd) != 8); }); \ >> + /* Check if the type of val is compatible with the handle */ \ >> + (void) sizeof((val) != (hnd).p); \ >> + (hnd).q = (uint64_t)(uintptr_t)(val); \ >> } while ( 0 ) >> #define set_xen_guest_handle(hnd, val) set_xen_guest_handle_raw(hnd, val) > > will get_xen_guest_handle, which access (hnd).p, have undefined behaviour? get_xen_guest_handle has been removed in staging. Regards, -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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