From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0F7DAC433F5 for ; Fri, 13 May 2022 09:00:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378719AbiEMJAc (ORCPT ); Fri, 13 May 2022 05:00:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58920 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347155AbiEMJAa (ORCPT ); Fri, 13 May 2022 05:00:30 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EED8D2B24CF for ; Fri, 13 May 2022 02:00:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1652432430; x=1683968430; h=date:from:to:cc:subject:message-id:mime-version; bh=UZNkG4uYXbLPDXpnWT/lY5jCnuirKRlehwcMQwjEFIg=; b=CPT034C5Qvge/vqP4na/bj3PeTOPG1BCl72cprDGxeXefgVayzmVvgll gbf5po+emdhJZDgkdvwMPlrhxR93vhbRsGthfME9fGTahr3sdCle7MhiU Xl0B4nyHSFHJBjyFq8FZigkh/31TIiOXFLKzZG9CUhNUsoX3+ETSra+oV xA2hCkwT62grpntFjGWwA3/ZWxSKdqeUcCUHwK4GHS7VUYZzTo7isEJtw 4aNwSGLpwE7I1+ARlf91yiIRAtJq8mQA05aBAlFL/ztfcHsoBsjxF6vRd uPNAhdPhnmye+M90pJRUUDmQOuyyqGU0ap+WJfJGIZv/VcbUdhDViL0mp w==; X-IronPort-AV: E=McAfee;i="6400,9594,10345"; a="257803076" X-IronPort-AV: E=Sophos;i="5.91,221,1647327600"; d="scan'208";a="257803076" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 May 2022 02:00:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,221,1647327600"; d="scan'208";a="637219581" Received: from lkp-server01.sh.intel.com (HELO 5056e131ad90) ([10.239.97.150]) by fmsmga004.fm.intel.com with ESMTP; 13 May 2022 02:00:27 -0700 Received: from kbuild by 5056e131ad90 with local (Exim 4.95) (envelope-from ) id 1npR9v-000LZ8-4m; Fri, 13 May 2022 09:00:27 +0000 Date: Fri, 13 May 2022 16:59:28 +0800 From: kernel test robot To: David Howells Cc: kbuild-all@lists.01.org, GNU/Weeb Mailing List , linux-kernel@vger.kernel.org Subject: [ammarfaizi2-block:dhowells/linux-fs/rxrpc-ringless 35/35] net/rxrpc/recvmsg.c:311:25: sparse: sparse: cast from restricted __be16 Message-ID: <202205131657.SjbSnATI-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://github.com/ammarfaizi2/linux-block dhowells/linux-fs/rxrpc-ringless head: 36075641f704b02b4bcaee01d904a06676b32199 commit: 36075641f704b02b4bcaee01d904a06676b32199 [35/35] rxrpc: Don't split up received jumbo packets config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20220513/202205131657.SjbSnATI-lkp@intel.com/config) compiler: sh4-linux-gcc (GCC) 11.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-dirty # https://github.com/ammarfaizi2/linux-block/commit/36075641f704b02b4bcaee01d904a06676b32199 git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block dhowells/linux-fs/rxrpc-ringless git checkout 36075641f704b02b4bcaee01d904a06676b32199 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=sh SHELL=/bin/bash net/rxrpc/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) >> net/rxrpc/recvmsg.c:311:25: sparse: sparse: cast from restricted __be16 >> net/rxrpc/recvmsg.c:311:25: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned short [usertype] val @@ got restricted __be16 [addressable] [usertype] cksum @@ net/rxrpc/recvmsg.c:311:25: sparse: expected unsigned short [usertype] val net/rxrpc/recvmsg.c:311:25: sparse: got restricted __be16 [addressable] [usertype] cksum >> net/rxrpc/recvmsg.c:311:25: sparse: sparse: cast from restricted __be16 >> net/rxrpc/recvmsg.c:311:25: sparse: sparse: cast from restricted __be16 >> net/rxrpc/recvmsg.c:311:23: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] cksum @@ got restricted __be16 [usertype] @@ net/rxrpc/recvmsg.c:311:23: sparse: expected unsigned short [usertype] cksum net/rxrpc/recvmsg.c:311:23: sparse: got restricted __be16 [usertype] vim +311 net/rxrpc/recvmsg.c 275 276 /* 277 * Set up a data location table for a jumbo DATA packet then verify 278 * and decrypt all the subpackets and locate the data for each. We 279 * also need to skip over any duplicate subpackets. 280 */ 281 static int rxrpc_verify_data(struct rxrpc_call *call, struct sk_buff *skb) 282 { 283 struct rxrpc_jumbo_header jhdr; 284 struct rxrpc_skb_subpacket *subs; 285 struct rxrpc_skb_priv *sp = rxrpc_skb(skb); 286 unsigned int offset = sizeof(struct rxrpc_wire_header); 287 unsigned int len = skb->len - sizeof(struct rxrpc_wire_header); 288 rxrpc_seq_t seq = sp->hdr.seq; 289 int nr_subs = sp->nr_subpackets - 1, i = 0, j; 290 u16 cksum = sp->hdr.cksum; 291 292 subs = kcalloc(sp->nr_subpackets, sizeof(*sp->subs), GFP_KERNEL); 293 if (!subs) 294 return -ENOMEM; 295 sp->subs = subs; 296 297 for (; j < nr_subs; j++, seq++) { 298 if (after(seq, call->rx_consumed)) { 299 subs[i].offset = offset; 300 subs[i].len = RXRPC_JUMBO_DATALEN; 301 subs[i].cksum = cksum; 302 i++; 303 } else { 304 sp->hdr.seq++; 305 sp->nr_subpackets--; 306 } 307 offset += RXRPC_JUMBO_DATALEN; 308 if (skb_copy_bits(skb, offset, &jhdr.cksum, 2) < 0) 309 return -EPROTO; 310 offset += sizeof(jhdr); > 311 cksum = htons(jhdr.cksum); 312 len -= RXRPC_JUMBO_SUBPKTLEN; 313 } 314 315 subs[i].offset = offset; 316 subs[i].len = len; 317 subs[i].cksum = cksum; 318 return call->security->verify_packet(call, skb); 319 } 320 -- 0-DAY CI Kernel Test Service https://01.org/lkp