[U-Boot] [PATCH v2 13/25] lib/zlib: sparse fixes

[Kim Phillips]

On Thu, 8 Nov 2012 12:20:51 +0100
Wolfgang Denk <wd at denx.de> wrote:

> In message <1351553687-12469-14-git-send-email-kim.phillips at freescale.com> you wrote:
> > define Z_NULL to (void *)0 include/u-boot/zlib.h to get rid of most of
> > the NULL pointer warnings.
> ...
> > -#define Z_NULL  0  /* for initializing zalloc, zfree, opaque */
> > +#define Z_NULL  (void *)0  /* for initializing zalloc, zfree, opaque */
> 
> Don't we have to put parens around such an expression?

I suppose.

> > --- a/lib/zlib/adler32.c
> > +++ b/lib/zlib/adler32.c
> > @@ -54,10 +54,7 @@
> >  #endif
> >  
> >  /* ========================================================================= */
> > -uLong ZEXPORT adler32(adler, buf, len)
> > -    uLong adler;
> > -    const Bytef *buf;
> > -    uInt len;
> > +uLong ZEXPORT adler32(uLong adler, const Bytef *buf, uInt len)
> 
> Hm... this code has been imported from another project.  This
> modification makes updates (or even comparing what has changed in more
> recent versions) much mor difficult, or even impossible
> :-(

my goal is to improve u-boot code quality by eliminating as much
sparse noise as possible - most boards use this code to decompress
kernels, so it's widely used.  E.g., this patch removes 52 lines of
sparse output.  But ok, we can revert this patch and turn off
checking for these files, in the form of an #ifndef __CHECKER__ at
the top, with an 'imported from another project' justification
comment.  Would that be better?

Kim