Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932543AbWAJWD5 (ORCPT ); Tue, 10 Jan 2006 17:03:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932556AbWAJWD5 (ORCPT ); Tue, 10 Jan 2006 17:03:57 -0500 Received: from mx1.redhat.com ([66.187.233.31]:22955 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S932543AbWAJWD4 (ORCPT ); Tue, 10 Jan 2006 17:03:56 -0500 Message-ID: <43C42F0C.10008@redhat.com> Date: Tue, 10 Jan 2006 14:02:52 -0800 From: Ulrich Drepper Organization: Red Hat, Inc. User-Agent: Mail/News 1.5 (X11/20060103) MIME-Version: 1.0 To: Linux Kernel , "David S. Miller" Subject: ntohs/ntohl and bitops X-Enigmail-Version: 0.93.1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig5BA0AE62271E2A3553A52D6E" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1518 Lines: 47 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig5BA0AE62271E2A3553A52D6E Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I just saw this in a patch: + if (ntohs(ih->frag_off) & IP_OFFSET) + return EBT_NOMATCH; This isn't optimal, it requires a byte switch little endian machines. The compiler isn't smart enough. It would be better to use if (ih->frag_off & ntohs(IP_OFFSET)) where the byte-swap can be done at compile time. This is kind of ugly, I guess, so maybe a dedicate macro net_host_bit_p(ih->frag_off, IP_OFFSET) ?? --=20 =E2=9E=A7 Ulrich Drepper =E2=9E=A7 Red Hat, Inc. =E2=9E=A7 444 Castro St = =E2=9E=A7 Mountain View, CA =E2=9D=96 --------------enig5BA0AE62271E2A3553A52D6E Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFDxC8R2ijCOnn/RHQRArbmAKCMMLjj5XOuW3X4lxU58XiE75OimwCghexD oxVcgsA//RNDEIKFaxEjnGY= =Yp2t -----END PGP SIGNATURE----- --------------enig5BA0AE62271E2A3553A52D6E-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/