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Date:      Fri, 30 Jun 2006 12:39:42 +0400
From:      Yar Tikhiy <yar@comp.chem.msu.su>
To:        "Christian S.J. Peron" <csjp@FreeBSD.org>
Cc:        cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/nfsclient bootp_subr.c
Message-ID:  <20060630083942.GA71578@comp.chem.msu.su>
In-Reply-To: <44A45D3E.2040004@FreeBSD.org>
References:  <200606291537.k5TFbeUg075956@repoman.freebsd.org> <44A45D3E.2040004@FreeBSD.org>

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On Thu, Jun 29, 2006 at 06:07:42PM -0500, Christian S.J. Peron wrote:
> Yar Tikhiy wrote:
> >yar         2006-06-29 15:37:39 UTC
> >
> >  FreeBSD src repository
> >
> >  Modified files:
> >    sys/nfsclient        bootp_subr.c 
> >  Log:
> >  Use the elegant TAILQ_FOREACH() in place of a hand-rolled for() loop.
> >  
> >  Revision  Changes    Path
> >  1.65      +1 -3      src/sys/nfsclient/bootp_subr.c
> >
> >
> >  
> Just as a point of curiosity, in some places, people are using for loops 
> to avoid invalid pointer dereferences in the event that one of the queue 
> items is removed by the code in the loop while iterating. Are you using 
> TAILQ_FOREACH_SAFE() in such places if required?

I was aware of TAILQ_FOREACH_SAFE(), but I didn't meet such places.
All the code I'd changed fell into the simpler, scan'n'find, case.
I was removing bogus ifa->ifa_addr checks from the networking code,
and for some funny reason, almost each check found was sitting next
to an old for() loop begging to be turned into TAILQ_FOREACH().
Did I miss a great idea hidden behind that? :-)

-- 
Yar



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