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Fix various sparse warnings in the git source code

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There are a few remaining ones, but this fixes the trivial ones. It boils
down to two main issues that sparse complains about:

 - warning: Using plain integer as NULL pointer

   Sparse doesn't like you using '0' instead of 'NULL'. For various good
   reasons, not the least of which is just the visual confusion. A NULL
   pointer is not an integer, and that whole "0 works as NULL" is a
   historical accident and not very pretty.

   A few of these remain: zlib is a total mess, and Z_NULL is just a 0.
   I didn't touch those.

 - warning: symbol 'xyz' was not declared. Should it be static?

   Sparse wants to see declarations for any functions you export. A lack
   of a declaration tends to mean that you should either add one, or you
   should mark the function 'static' to show that it's in file scope.

   A few of these remain: I only did the ones that should obviously just
   be made static.

That 'wt_status_submodule_summary' one is debatable. It has a few related
flags (like 'wt_status_use_color') which _are_ declared, and are used by
builtin-commit.c. So maybe we'd like to export it at some point, but it's
not declared now, and not used outside of that file, so 'static' it is in
this patch.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Linus Torvalds
2009-06-18 10:28:43 -07:00
committed by Junio C Hamano
parent a49eb197d8
commit 2af202be3d
23 changed files with 42 additions and 42 deletions
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4
builtin-fsck.c
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@ -104,7 +104,7 @@ static int mark_object(struct object *obj, int type, void *data)
static void mark_object_reachable(struct object *obj)
{
mark_object(obj, OBJ_ANY, 0);
mark_object(obj, OBJ_ANY, NULL);
}
static int traverse_one_object(struct object *obj, struct object *parent)
@ -292,7 +292,7 @@ static int fsck_sha1(const unsigned char *sha1)
fprintf(stderr, "Checking %s %s\n",
typename(obj->type), sha1_to_hex(obj->sha1));
if (fsck_walk(obj, mark_used, 0))
if (fsck_walk(obj, mark_used, NULL))
objerror(obj, "broken links");
if (fsck_object(obj, check_strict, fsck_error_func))
return -1;