Re: split index: sparse warning

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On Thu, May 1, 2014 at 6:44 AM, Ramsay Jones <ramsay@xxxxxxxxxxxxxxxxxxx> wrote:
> Hi Duy,
>
> I haven't looked at your split-index series at all. However, sparse has
> nagged me to take a quick squint at the result of the series as it
> appears in the 'pu' branch.
>
> In particular, sparse complains thus:
>
>       SP sequencer.c
>   sequencer.c:690:49: error: incompatible types for operation (>=)
>   sequencer.c:690:49:    left side has type int ( extern [toplevel] *<noident> )( ... )
>   sequencer.c:690:49:    right side has type int
>
> ... which is fair enough; index_fd is, indeed, a function (pointer) and
> not an int file descriptor! The offending code looks like:
>
> 683 static void read_and_refresh_cache(struct replay_opts *opts)
> 684 {
> 685         static struct lock_file index_lock;
> 686         hold_locked_index(&index_lock, 0);
> 687         if (read_index_preload(&the_index, NULL) < 0)
> 688                 die(_("git %s: failed to read the index"), action_name(opts));
> 689         refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL);
> 690         if (the_index.cache_changed && index_fd >= 0) {
> 691                 if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
> 692                         die(_("git %s: failed to refresh the index"), action_name(opts));
> 693         }
> 694         rollback_lock_file(&index_lock);
> 695 }
>
>
> It seems that, in an earlier commit (33c297aa), index_fd was declared
> as a local int variable (hiding the global function) which was then
> initialised by a call to hold_locked_index().

Ugh.. after removing index_fd the local variable, index_fd now becomes
the function from sha1_file.c. Noted and will fix it in the next
reroll.
--
Duy
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