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Date:      Sat, 20 Oct 2007 15:50:30 -0700
From:      LI Xin <delphij@delphij.net>
To:        "Bjoern A. Zeeb" <bz@FreeBSD.ORG>
Cc:        cvs-src@FreeBSD.ORG, src-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject:   Re: cvs commit: src/sys/i386/i386 in_cksum.c src/sys/i386/include in_cksum.h
Message-ID:  <471A8636.8000005@delphij.net>
In-Reply-To: <200710202218.l9KMIgpL068209@repoman.freebsd.org>
References:  <200710202218.l9KMIgpL068209@repoman.freebsd.org>

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Bjoern A. Zeeb wrote:
> bz          2007-10-20 22:18:42 UTC
>=20
>   FreeBSD src repository
>=20
>   Modified files:
>     sys/i386/i386        in_cksum.c=20
>     sys/i386/include     in_cksum.h=20
>   Log:
>   Fold multiple asm statements into one so that the compiler at a certa=
in
>   optimization level (-march=3Dpentium-mmx for example) does not insert=

>   intermediate ops which would trash the carry.
>  =20
>   Change both sys/i386/i386/in_cksum.c[1] and sys/i386/include/in_cksum=
=2Eh.
>  =20
>   To my best understanding the same problem was addressed in rev. 1.16
>   of src/sys/i386/include/in_cksum.h for just a single function 3y ago.=

>  =20
>   Reviewed by:  jhb
>   Submitted by: Zhouyi ZHOU <zhouzhouyi FreeBSD.org> (intial version of=
 [1])
>   MFC after:    5 days
>   PR:           115678, 69257

Thanks!

Cheers,
--=20
Xin LI <delphij@delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!


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