Re: [PATCH] mm/vmalloc.c: fix sparse warning

[Al Viro]

On Thu, Apr 23, 2009 at 01:23:58PM -0700, Andrew Morton wrote:
> On Fri, 17 Apr 2009 20:55:06 -0400
> "H Hartley Sweeten" <hartleys@xxxxxxxxxxxxxxxxxxx> wrote:
> 
> > Fix sparse warning in mm/vmalloc.c.
> > 
> >   warning: symbol 'tmp' shadows an earlier one

Folks, could we please add to appropriate documentation (SubmittingPatches,
perhaps) a bit about using descriptive subjects?

In general, "$TOOL warning in $FILE" says nothing useful.  In this case
"Get rid of shadowed variable in mm/vmalloc.c:<function>" would be far
more useful, with "found by sparse" _maybe_ showing up in the commit
message more or less as a footnote.  Or even "shadowed variable in
mm/vmalloc.c:<function>".
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