From patchwork Fri Nov 20 18:40:27 2020 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: 329582 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-22.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1255AC63798 for ; Fri, 20 Nov 2020 18:42:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BE3DB21D91 for ; Fri, 20 Nov 2020 18:42:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="Jy2staIP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731595AbgKTSln (ORCPT ); Fri, 20 Nov 2020 13:41:43 -0500 Received: from mail.kernel.org ([198.145.29.99]:58460 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731581AbgKTSkY (ORCPT ); Fri, 20 Nov 2020 13:40:24 -0500 Received: from embeddedor (187-162-31-110.static.axtel.net [187.162.31.110]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A9CDA241A6; Fri, 20 Nov 2020 18:40:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1605897621; bh=h0ITouBiiUmCiWBaHMzubSX77FAZ7qI2pCMuYg3OfKE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Jy2staIPU7TX96mT3toukkbyoBLKMZW4mQCXy64SrgUyEWdZH/CXV8h3g6t+SQ6G1 DqPROMIU30E8zzVFHvr6YHXeoSMRaDm9gGV75DmAOLnJINHlkXPH438Xhz3A5wHaGX fRU5b9bwHbDJcEuxuxdOosgQiYhCMAEMSEWZgdSk= Date: Fri, 20 Nov 2020 12:40:27 -0600 From: "Gustavo A. R. Silva" To: Felipe Balbi , Greg Kroah-Hartman , Olav Kongas , Bin Liu , Alan Stern , Oliver Neukum Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, usb-storage@lists.one-eyed-alien.net, linux-scsi@vger.kernel.org, linux-hardening@vger.kernel.org, "Gustavo A. R. Silva" Subject: [PATCH 133/141] usb: Fix fall-through warnings for Clang Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple warnings by explicitly adding multiple break/return/fallthrough statements instead of letting the code fall through to the next case. Link: https://github.com/KSPP/linux/issues/115 Signed-off-by: Gustavo A. R. Silva --- drivers/usb/gadget/function/f_fs.c | 2 ++ drivers/usb/gadget/function/f_loopback.c | 2 +- drivers/usb/gadget/function/f_sourcesink.c | 1 + drivers/usb/gadget/udc/dummy_hcd.c | 2 ++ drivers/usb/host/fotg210-hcd.c | 2 +- drivers/usb/host/isp116x-hcd.c | 1 + drivers/usb/host/max3421-hcd.c | 1 + drivers/usb/host/oxu210hp-hcd.c | 1 + drivers/usb/misc/yurex.c | 1 + drivers/usb/musb/tusb6010.c | 1 + drivers/usb/storage/ene_ub6250.c | 1 + drivers/usb/storage/uas.c | 1 + 12 files changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index 046f770a76da..7f9c4e35d3db 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -678,6 +678,8 @@ static __poll_t ffs_ep0_poll(struct file *file, poll_table *wait) mask |= (EPOLLIN | EPOLLOUT); break; } + break; + case FFS_CLOSING: break; case FFS_DEACTIVATED: diff --git a/drivers/usb/gadget/function/f_loopback.c b/drivers/usb/gadget/function/f_loopback.c index 1803646b3678..b56ad7c3838b 100644 --- a/drivers/usb/gadget/function/f_loopback.c +++ b/drivers/usb/gadget/function/f_loopback.c @@ -274,7 +274,7 @@ static void loopback_complete(struct usb_ep *ep, struct usb_request *req) default: ERROR(cdev, "%s loop complete --> %d, %d/%d\n", ep->name, status, req->actual, req->length); - /* FALLTHROUGH */ + fallthrough; /* NOTE: since this driver doesn't maintain an explicit record * of requests it submitted (just maintains qlen count), we diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c index ed68a4860b7d..5a201ba7b155 100644 --- a/drivers/usb/gadget/function/f_sourcesink.c +++ b/drivers/usb/gadget/function/f_sourcesink.c @@ -559,6 +559,7 @@ static void source_sink_complete(struct usb_ep *ep, struct usb_request *req) #if 1 DBG(cdev, "%s complete --> %d, %d/%d\n", ep->name, status, req->actual, req->length); + break; #endif case -EREMOTEIO: /* short read */ break; diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c index 53a227217f1c..bb0dc67ecdd3 100644 --- a/drivers/usb/gadget/udc/dummy_hcd.c +++ b/drivers/usb/gadget/udc/dummy_hcd.c @@ -553,6 +553,7 @@ static int dummy_enable(struct usb_ep *_ep, /* we'll fake any legal size */ break; /* save a return statement */ + fallthrough; default: goto done; } @@ -595,6 +596,7 @@ static int dummy_enable(struct usb_ep *_ep, if (max <= 1023) break; /* save a return statement */ + fallthrough; default: goto done; } diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c index 1d94fcfac2c2..0451943f0bc4 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -5276,7 +5276,7 @@ static int fotg210_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, */ if (urb->transfer_buffer_length > (16 * 1024)) return -EMSGSIZE; - /* FALLTHROUGH */ + fallthrough; /* case PIPE_BULK: */ default: if (!qh_urb_transaction(fotg210, urb, &qtd_list, mem_flags)) diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 3055d9abfec3..8544a2a2c1e6 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -1447,6 +1447,7 @@ static int isp116x_bus_resume(struct usb_hcd *hcd) val &= ~HCCONTROL_HCFS; val |= HCCONTROL_USB_RESUME; isp116x_write_reg32(isp116x, HCCONTROL, val); + break; case HCCONTROL_USB_RESUME: break; case HCCONTROL_USB_OPER: diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c index 0894f6caccb2..0b5d47e6aab2 100644 --- a/drivers/usb/host/max3421-hcd.c +++ b/drivers/usb/host/max3421-hcd.c @@ -1537,6 +1537,7 @@ max3421_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags) __func__, urb->interval); return -EINVAL; } + break; default: break; } diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c index 27dbbe1b28b1..aa42df39e6a1 100644 --- a/drivers/usb/host/oxu210hp-hcd.c +++ b/drivers/usb/host/oxu210hp-hcd.c @@ -1365,6 +1365,7 @@ __acquires(oxu->lock) switch (urb->status) { case -EINPROGRESS: /* success */ urb->status = 0; + break; default: /* fault */ break; case -EREMOTEIO: /* fault or normal */ diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index e3165d79b5f6..73ebfa6e9715 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -137,6 +137,7 @@ static void yurex_interrupt(struct urb *urb) dev_err(&dev->interface->dev, "%s - overflow with length %d, actual length is %d\n", __func__, YUREX_BUF_SIZE, dev->urb->actual_length); + return; case -ECONNRESET: case -ENOENT: case -ESHUTDOWN: diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index c26683a2702b..c42937692207 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -467,6 +467,7 @@ static void musb_do_idle(struct timer_list *t) fallthrough; case OTG_STATE_A_IDLE: tusb_musb_set_vbus(musb, 0); + break; default: break; } diff --git a/drivers/usb/storage/ene_ub6250.c b/drivers/usb/storage/ene_ub6250.c index 98c1aa594e6c..5f7d678502be 100644 --- a/drivers/usb/storage/ene_ub6250.c +++ b/drivers/usb/storage/ene_ub6250.c @@ -861,6 +861,7 @@ static int ms_count_freeblock(struct us_data *us, u16 PhyBlock) case MS_LB_NOT_USED: case MS_LB_NOT_USED_ERASED: Count++; + break; default: break; } diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index c8a577309e8f..6bd33c57fdcb 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -690,6 +690,7 @@ static int uas_queuecommand_lck(struct scsi_cmnd *cmnd, fallthrough; case DMA_TO_DEVICE: cmdinfo->state |= ALLOC_DATA_OUT_URB | SUBMIT_DATA_OUT_URB; + break; case DMA_NONE: break; }