linux-kernel - Re: [PATCH 6/6] udf: fix sparse warnings (shadowing & mismatch between declaration and definition)

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Message-ID: <20071219183511.GC18104@joi>
Date:	Wed, 19 Dec 2007 19:35:14 +0100
From:	Marcin Slusarz <marcin.slusarz@...il.com>
To:	Jan Kara <jack@...e.cz>
Cc:	linux-kernel@...r.kernel.org,
	Ben Fennema <bfennema@...con.csc.calpoly.edu>
Subject: Re: [PATCH 6/6] udf: fix sparse warnings (shadowing & mismatch
	between declaration and definition)

On Mon, Dec 17, 2007 at 05:50:17PM +0100, Jan Kara wrote:
> > fix warnings:
> > fs/udf/super.c:1320:24: warning: symbol 'bh' shadows an earlier one
> > fs/udf/super.c:1240:21: originally declared here
> > fs/udf/super.c:1583:4: warning: symbol 'i' shadows an earlier one
> > fs/udf/super.c:1418:6: originally declared here
> > fs/udf/super.c:1585:4: warning: symbol 'i' shadows an earlier one
> > fs/udf/super.c:1418:6: originally declared here
> > fs/udf/super.c:1658:4: warning: symbol 'i' shadows an earlier one
> > fs/udf/super.c:1648:6: originally declared here
> > fs/udf/super.c:1660:4: warning: symbol 'i' shadows an earlier one
> > fs/udf/super.c:1648:6: originally declared here
> > fs/udf/super.c:450:6: warning: symbol 'udf_write_super' was not declared. Should it be static?
> >
> > Signed-off-by: Marcin Slusarz <marcin.slusarz@...il.com>
> > CC: Ben Fennema <bfennema@...con.csc.calpoly.edu>
>   Thanks for the patch.  The 'bh' change is fine. The problems with 'i'
> should be solved differently I think. Those functions UDF_SB_FREE,
> UDF_SB_ALLOC_PARTMAPS should be functions and not macros. Please convert
> those to either inline functions if they are small or to regular
> functions if they are larger.  It won't be completely trivial because of
> the hackery e.g. in UDF_SB_ALLOC_BITMAP. It gets an argument meaning on
> which struct member something should be performed. But for example in
> the UDF_SB_ALLOC_BITMAP case you can simply make the function return the
> pointer to allocated and initialized space and the caller would assign
> it to a proper element of the superblock.
Ok, I'll try to do it.

> This would help the overall
> code quality of UDF (which is sadly quite poor).
If you have other suggestions how to clean up this code, let me know.
I'll see what I can do with them ;)

Marcin
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