On Thu, Nov 17, 2016 at 9:25 AM, Luc Van Oostenryck
<luc.vanoostenryck@xxxxxxxxx> wrote:
> The macros that do the ptrlist walking don't handle empty blocks.
Actually, most of the_do_ handle empty blocks. In particular, the
normal FOR_EACH_PTR() case should handle it just fine.
The exception is, I think:
- first_ptr_list/last_ptr_list
- DO_PREPARE/DO_RESET
which just don't walk the pointer block list, they just end up blindly doing
PTR_ENTRY(list, 0);
for the first entry, or
list = list->prev;
PTR_ENTRY(list, list->nr-1);
for the last one.
I suspect they should be fairly easy to update to just walk the list
until they hit a non-empty case (like DO_NEXT() already does, for
example).
Linus
--
To unsubscribe from this list: send the line "unsubscribe linux-sparse" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
