From patchwork Wed Oct 3 14:55:35 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gustavo A. R. Silva" X-Patchwork-Id: 10625033 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3EBAD14BD for ; Wed, 3 Oct 2018 15:20:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1F1F328E84 for ; Wed, 3 Oct 2018 15:20:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DA72928F24; Wed, 3 Oct 2018 15:20:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4FF5728E71 for ; Wed, 3 Oct 2018 15:20:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727044AbeJCWI7 (ORCPT ); Wed, 3 Oct 2018 18:08:59 -0400 Received: from gateway32.websitewelcome.com ([192.185.145.102]:18114 "EHLO gateway32.websitewelcome.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726748AbeJCWI7 (ORCPT ); Wed, 3 Oct 2018 18:08:59 -0400 X-Greylist: delayed 1467 seconds by postgrey-1.27 at vger.kernel.org; Wed, 03 Oct 2018 18:08:58 EDT Received: from cm14.websitewelcome.com (cm14.websitewelcome.com [100.42.49.7]) by gateway32.websitewelcome.com (Postfix) with ESMTP id 10350D8CA for ; Wed, 3 Oct 2018 09:55:46 -0500 (CDT) Received: from gator4166.hostgator.com ([108.167.133.22]) by cmsmtp with SMTP id 7iYsgvEGqkBj67iYxg2INZ; Wed, 03 Oct 2018 09:55:46 -0500 X-Authority-Reason: nr=8 Received: from 174.206.93.92.rev.sfr.net ([92.93.206.174]:38930 helo=embeddedor) by gator4166.hostgator.com with esmtpa (Exim 4.91) (envelope-from ) id 1g7iYr-003jDV-2P; Wed, 03 Oct 2018 09:55:37 -0500 Date: Wed, 3 Oct 2018 16:55:35 +0200 From: "Gustavo A. R. Silva" To: Don Brace , "James E.J. Bottomley" , "Martin K. Petersen" , Adaptec OEM Raid Solutions , Willem Riede , Kai =?iso-8859-1?q?M=E4kisara?= Cc: esc.storagedev@microsemi.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, osst-users@lists.sourceforge.net, "Gustavo A. R. Silva" Subject: [PATCH] scsi: mark expected switch fall-throughs Message-ID: <20181003145535.GA24941@embeddedor.com> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator4166.hostgator.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - embeddedor.com X-BWhitelist: no X-Source-IP: 92.93.206.174 X-Source-L: No X-Exim-ID: 1g7iYr-003jDV-2P X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 174.206.93.92.rev.sfr.net (embeddedor) [92.93.206.174]:38930 X-Source-Auth: gustavo@embeddedor.com X-Email-Count: 8 X-Source-Cap: Z3V6aWRpbmU7Z3V6aWRpbmU7Z2F0b3I0MTY2Lmhvc3RnYXRvci5jb20= X-Local-Domain: yes Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 1195463 ("Missing break in switch") Addresses-Coverity-ID: 1195464 ("Missing break in switch") Addresses-Coverity-ID: 1195465 ("Missing break in switch") Addresses-Coverity-ID: 1195466 ("Missing break in switch") Addresses-Coverity-ID: 1357338 ("Missing break in switch") Addresses-Coverity-ID: 114973 ("Missing break in switch") Addresses-Coverity-ID: 114983 ("Missing break in switch") Addresses-Coverity-ID: 114984 ("Missing break in switch") Addresses-Coverity-ID: 114985 ("Missing break in switch") Addresses-Coverity-ID: 114988 ("Missing break in switch") Addresses-Coverity-ID: 114994 ("Missing break in switch") Addresses-Coverity-ID: 114995 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva --- drivers/scsi/hpsa.c | 5 +++++ drivers/scsi/ips.c | 1 + drivers/scsi/osst.c | 6 ++++++ drivers/scsi/ppa.c | 1 + drivers/scsi/st.c | 4 ++++ 5 files changed, 17 insertions(+) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index f903983..fb6a356 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4662,6 +4662,7 @@ static int fixup_ioaccel_cdb(u8 *cdb, int *cdb_len) case WRITE_6: case WRITE_12: is_write = 1; + /* fall through */ case READ_6: case READ_12: if (*cdb_len == 6) { @@ -5092,6 +5093,7 @@ static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info *h, switch (cmd->cmnd[0]) { case WRITE_6: is_write = 1; + /* fall through */ case READ_6: first_block = (((cmd->cmnd[1] & 0x1F) << 16) | (cmd->cmnd[2] << 8) | @@ -5102,6 +5104,7 @@ static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info *h, break; case WRITE_10: is_write = 1; + /* fall through */ case READ_10: first_block = (((u64) cmd->cmnd[2]) << 24) | @@ -5114,6 +5117,7 @@ static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info *h, break; case WRITE_12: is_write = 1; + /* fall through */ case READ_12: first_block = (((u64) cmd->cmnd[2]) << 24) | @@ -5128,6 +5132,7 @@ static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info *h, break; case WRITE_16: is_write = 1; + /* fall through */ case READ_16: first_block = (((u64) cmd->cmnd[2]) << 56) | diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index bd6ac6b..8e1c45d 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -3485,6 +3485,7 @@ ips_send_cmd(ips_ha_t * ha, ips_scb_t * scb) case START_STOP: scb->scsi_cmd->result = DID_OK << 16; + /* fall through */ case TEST_UNIT_READY: case INQUIRY: diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c index 7a1a1ed..8af608d 100644 --- a/drivers/scsi/osst.c +++ b/drivers/scsi/osst.c @@ -216,12 +216,14 @@ static void osst_analyze_sense(struct osst_request *SRpnt, struct st_cmdstatus * switch (sense[0] & 0x7f) { case 0x71: s->deferred = 1; + /* fall through */ case 0x70: s->fixed_format = 1; s->flags = sense[2] & 0xe0; break; case 0x73: s->deferred = 1; + /* fall through */ case 0x72: s->fixed_format = 0; ucp = scsi_sense_desc_find(sense, SCSI_SENSE_BUFFERSIZE, 4); @@ -591,6 +593,7 @@ static void osst_init_aux(struct osst_tape * STp, int frame_type, int frame_seq_ dat->dat_list[0].flags = frame_type==OS_FRAME_TYPE_MARKER? OS_DAT_FLAGS_MARK:OS_DAT_FLAGS_DATA; dat->dat_list[0].reserved = 0; + /* fall through */ case OS_FRAME_TYPE_EOD: aux->update_frame_cntr = htonl(0); par->partition_num = OS_DATA_PARTITION; @@ -4086,6 +4089,7 @@ static int osst_int_ioctl(struct osst_tape * STp, struct osst_request ** aSRpnt, switch (cmd_in) { case MTFSFM: chg_eof = 0; /* Changed from the FSF after this */ + /* fall through */ case MTFSF: if (STp->raw) return (-EIO); @@ -4101,6 +4105,7 @@ static int osst_int_ioctl(struct osst_tape * STp, struct osst_request ** aSRpnt, case MTBSF: chg_eof = 0; /* Changed from the FSF after this */ + /* fall through */ case MTBSFM: if (STp->raw) return (-EIO); @@ -4312,6 +4317,7 @@ static int osst_int_ioctl(struct osst_tape * STp, struct osst_request ** aSRpnt, name, STp->block_size); return 0; } + /* fall through */ case MTSETDENSITY: /* Set tape density */ case MTSETDRVBUFFER: /* Set drive buffering */ case SET_DENS_AND_BLK: /* Set density and block size */ diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c index ee86a0c..d29999b 100644 --- a/drivers/scsi/ppa.c +++ b/drivers/scsi/ppa.c @@ -717,6 +717,7 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd) } cmd->SCp.phase++; } + /* fall through */ case 2: /* Phase 2 - We are now talking to the scsi bus */ if (!ppa_select(dev, scmd_id(cmd))) { diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 307df2f..f1351ec 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -337,12 +337,14 @@ static void st_analyze_sense(struct st_request *SRpnt, struct st_cmdstatus *s) switch (sense[0] & 0x7f) { case 0x71: s->deferred = 1; + /* fall through */ case 0x70: s->fixed_format = 1; s->flags = sense[2] & 0xe0; break; case 0x73: s->deferred = 1; + /* fall through */ case 0x72: s->fixed_format = 0; ucp = scsi_sense_desc_find(sense, SCSI_SENSE_BUFFERSIZE, 4); @@ -2721,6 +2723,7 @@ static int st_int_ioctl(struct scsi_tape *STp, unsigned int cmd_in, unsigned lon switch (cmd_in) { case MTFSFM: chg_eof = 0; /* Changed from the FSF after this */ + /* fall through */ case MTFSF: cmd[0] = SPACE; cmd[1] = 0x01; /* Space FileMarks */ @@ -2735,6 +2738,7 @@ static int st_int_ioctl(struct scsi_tape *STp, unsigned int cmd_in, unsigned lon break; case MTBSFM: chg_eof = 0; /* Changed from the FSF after this */ + /* fall through */ case MTBSF: cmd[0] = SPACE; cmd[1] = 0x01; /* Space FileMarks */