From: Gerrit Renker Date: Thu, 27 Sep 2007 14:20:48 +0000 Subject: [PATCH 2/11]: Make code assumptions explicit Message-Id: <200709271520.48914@strip-the-willow> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: dccp@vger.kernel.org [DCCP]: Make code assumptions explicit This removes several `XXX' references which indicate a missing support for non-1-byte feature values: this is unnecessary, as all currently known (standardised) SP feature values are 1-byte quantities. Signed-off-by: Gerrit Renker --- net/dccp/feat.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) --- a/net/dccp/feat.c +++ b/net/dccp/feat.c @@ -4,10 +4,16 @@ * An implementation of the DCCP protocol * Andrea Bittau * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. + * ASSUMPTIONS + * ----------- + * o All currently known SP features have 1-byte quantities. If in the future + * extensions of RFCs 4340..42 define features with item lengths larger than + * one byte, a feature-specific extension of the code will be required. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. */ #include @@ -95,7 +101,6 @@ static int dccp_feat_update_ccid(struct return 0; } -/* XXX taking only u8 vals */ static int dccp_feat_update(struct sock *sk, u8 type, u8 feat, u8 val) { dccp_feat_debug(type, feat, val); @@ -140,7 +145,6 @@ static int dccp_feat_reconcile(struct so /* FIXME sanity check vals */ /* Are values in any order? XXX Lame "algorithm" here */ - /* XXX assume values are 1 byte */ for (i = 0; i < slen; i++) { for (j = 0; j < rlen; j++) { if (spref[i] = rpref[j]) { @@ -175,7 +179,6 @@ static int dccp_feat_reconcile(struct so } /* need to put result and our preference list */ - /* XXX assume 1 byte vals */ rlen = 1 + opt->dccpop_len; rpref = kmalloc(rlen, GFP_ATOMIC); if (rpref = NULL)