Re: [PATCH v3] bulk-checkin: fix sign compare warnings

> In file bulk-checkin.c, three warnings are emitted by
> "-Wsign-compare", two of which are caused by trivial loop iterator
> type mismatches.  For the third case, the type of `rsize` from
> 
> 			ssize_t rsize = size < sizeof(ibuf) ? size : sizeof(ibuf);
> 
> can be changed to size_t as both options of the ternary expression are
> unsigned and the signedness of the variable isn't really needed
> anywhere.
> 
> To prevent `read_result != rsize` making a clash, it is to be noted
> that `read_result` is checked not to hold negative values.  Therefore
> casting the variable to size_t is a safe operation and enough to
> remove the sign-compare warning.