From patchwork Thu Aug 18 21:01:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 12947946 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 1A6B0C25B0E for ; Thu, 18 Aug 2022 21:09:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240935AbiHRVJE (ORCPT ); Thu, 18 Aug 2022 17:09:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346596AbiHRVIh (ORCPT ); Thu, 18 Aug 2022 17:08:37 -0400 Received: from mail.zeus03.de (www.zeus03.de [194.117.254.33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A6C5AD4BCC for ; Thu, 18 Aug 2022 14:04:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=sang-engineering.com; h= from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; s=k1; bh=3TCZA6St8oRXkMGgqAnRgue6wHi DB4Wwuz8tc8Vdv58=; b=U/Op/ua1e0Yw1jfF+8b5Nmpz4so8O6TD8U2iBbpdPAa BntvkR+8qe033X9pM7ale1PbtRFV3kl1cNBsJF5XlA5dIZAH/Tk7v2DofFQnk2Yj qN+L83Bs0FgIQ/99/oLyutjCQFvpa24utj3OWTJFxGKn/UlGOFm6T871TcyRrmj4 = Received: (qmail 3961700 invoked from network); 18 Aug 2022 23:01:16 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 18 Aug 2022 23:01:16 +0200 X-UD-Smtp-Session: l3s3148p1@DLdISIrmdvEucref From: Wolfram Sang To: linux-kernel@vger.kernel.org Cc: Wolfram Sang , Duncan Sands , Greg Kroah-Hartman , Felipe Balbi , Laurent Pinchart , Richard Leitner , Alan Stern , Guenter Roeck , Heikki Krogerus , Valentina Manea , Shuah Khan , linux-usb@vger.kernel.org, usb-storage@lists.one-eyed-alien.net Subject: [PATCH] usb: move from strlcpy with unused retval to strscpy Date: Thu, 18 Aug 2022 23:01:15 +0200 Message-Id: <20220818210116.7517-1-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Follow the advice of the below link and prefer 'strscpy' in this subsystem. Conversion is 1:1 because the return value is not used. Generated by a coccinelle script. Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Wolfram Sang Acked-by: Shuah Khan Reviewed-by: Laurent Pinchart Reviewed-by: Richard Leitner --- drivers/usb/atm/usbatm.c | 2 +- drivers/usb/core/devio.c | 2 +- drivers/usb/gadget/function/f_fs.c | 2 +- drivers/usb/gadget/function/f_uvc.c | 2 +- drivers/usb/gadget/function/u_ether.c | 8 ++++---- drivers/usb/gadget/function/uvc_v4l2.c | 6 +++--- drivers/usb/gadget/udc/omap_udc.c | 2 +- drivers/usb/misc/usb251xb.c | 6 +++--- drivers/usb/storage/onetouch.c | 2 +- drivers/usb/typec/tcpm/fusb302.c | 2 +- drivers/usb/usbip/stub_main.c | 2 +- 11 files changed, 18 insertions(+), 18 deletions(-) diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c index 362217189ef3..1cdb8758ae01 100644 --- a/drivers/usb/atm/usbatm.c +++ b/drivers/usb/atm/usbatm.c @@ -1026,7 +1026,7 @@ int usbatm_usb_probe(struct usb_interface *intf, const struct usb_device_id *id, /* public fields */ instance->driver = driver; - strlcpy(instance->driver_name, driver->driver_name, + strscpy(instance->driver_name, driver->driver_name, sizeof(instance->driver_name)); instance->usb_dev = usb_dev; diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index b5b85bf80329..837f3e57f580 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1434,7 +1434,7 @@ static int proc_getdriver(struct usb_dev_state *ps, void __user *arg) if (!intf || !intf->dev.driver) ret = -ENODATA; else { - strlcpy(gd.driver, intf->dev.driver->name, + strscpy(gd.driver, intf->dev.driver->name, sizeof(gd.driver)); ret = (copy_to_user(arg, &gd, sizeof(gd)) ? -EFAULT : 0); } diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index e0fa4b186ec6..98dc2291e9a1 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -3700,7 +3700,7 @@ int ffs_name_dev(struct ffs_dev *dev, const char *name) existing = _ffs_do_find_dev(name); if (!existing) - strlcpy(dev->name, name, ARRAY_SIZE(dev->name)); + strscpy(dev->name, name, ARRAY_SIZE(dev->name)); else if (existing != dev) ret = -EBUSY; diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c index 71669e0e4d00..f4f6cf75930b 100644 --- a/drivers/usb/gadget/function/f_uvc.c +++ b/drivers/usb/gadget/function/f_uvc.c @@ -430,7 +430,7 @@ uvc_register_video(struct uvc_device *uvc) uvc->vdev.vfl_dir = VFL_DIR_TX; uvc->vdev.lock = &uvc->video.mutex; uvc->vdev.device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; - strlcpy(uvc->vdev.name, cdev->gadget->name, sizeof(uvc->vdev.name)); + strscpy(uvc->vdev.name, cdev->gadget->name, sizeof(uvc->vdev.name)); video_set_drvdata(&uvc->vdev, uvc); diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c index 7887def05dc2..e06022873df1 100644 --- a/drivers/usb/gadget/function/u_ether.c +++ b/drivers/usb/gadget/function/u_ether.c @@ -144,10 +144,10 @@ static void eth_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *p) { struct eth_dev *dev = netdev_priv(net); - strlcpy(p->driver, "g_ether", sizeof(p->driver)); - strlcpy(p->version, UETH__VERSION, sizeof(p->version)); - strlcpy(p->fw_version, dev->gadget->name, sizeof(p->fw_version)); - strlcpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof(p->bus_info)); + strscpy(p->driver, "g_ether", sizeof(p->driver)); + strscpy(p->version, UETH__VERSION, sizeof(p->version)); + strscpy(p->fw_version, dev->gadget->name, sizeof(p->fw_version)); + strscpy(p->bus_info, dev_name(&dev->gadget->dev), sizeof(p->bus_info)); } /* REVISIT can also support: diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c index fd8f73bb726d..511f106f9843 100644 --- a/drivers/usb/gadget/function/uvc_v4l2.c +++ b/drivers/usb/gadget/function/uvc_v4l2.c @@ -67,9 +67,9 @@ uvc_v4l2_querycap(struct file *file, void *fh, struct v4l2_capability *cap) struct uvc_device *uvc = video_get_drvdata(vdev); struct usb_composite_dev *cdev = uvc->func.config->cdev; - strlcpy(cap->driver, "g_uvc", sizeof(cap->driver)); - strlcpy(cap->card, cdev->gadget->name, sizeof(cap->card)); - strlcpy(cap->bus_info, dev_name(&cdev->gadget->dev), + strscpy(cap->driver, "g_uvc", sizeof(cap->driver)); + strscpy(cap->card, cdev->gadget->name, sizeof(cap->card)); + strscpy(cap->bus_info, dev_name(&cdev->gadget->dev), sizeof(cap->bus_info)); return 0; } diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c index 61cabb9de6ae..b0567c63d754 100644 --- a/drivers/usb/gadget/udc/omap_udc.c +++ b/drivers/usb/gadget/udc/omap_udc.c @@ -2558,7 +2558,7 @@ omap_ep_setup(char *name, u8 addr, u8 type, /* set up driver data structures */ BUG_ON(strlen(name) >= sizeof ep->name); - strlcpy(ep->name, name, sizeof ep->name); + strscpy(ep->name, name, sizeof(ep->name)); INIT_LIST_HEAD(&ep->queue); INIT_LIST_HEAD(&ep->iso); ep->bEndpointAddress = addr; diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c index 04c4e3fed094..87035ac09834 100644 --- a/drivers/usb/misc/usb251xb.c +++ b/drivers/usb/misc/usb251xb.c @@ -547,7 +547,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, hub->boost_up = USB251XB_DEF_BOOST_UP; cproperty_char = of_get_property(np, "manufacturer", NULL); - strlcpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING, + strscpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING, sizeof(str)); hub->manufacturer_len = strlen(str) & 0xFF; memset(hub->manufacturer, 0, USB251XB_STRING_BUFSIZE); @@ -557,7 +557,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, USB251XB_STRING_BUFSIZE); cproperty_char = of_get_property(np, "product", NULL); - strlcpy(str, cproperty_char ? : data->product_str, sizeof(str)); + strscpy(str, cproperty_char ? : data->product_str, sizeof(str)); hub->product_len = strlen(str) & 0xFF; memset(hub->product, 0, USB251XB_STRING_BUFSIZE); len = min_t(size_t, USB251XB_STRING_BUFSIZE / 2, strlen(str)); @@ -566,7 +566,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, USB251XB_STRING_BUFSIZE); cproperty_char = of_get_property(np, "serial", NULL); - strlcpy(str, cproperty_char ? : USB251XB_DEF_SERIAL_STRING, + strscpy(str, cproperty_char ? : USB251XB_DEF_SERIAL_STRING, sizeof(str)); hub->serial_len = strlen(str) & 0xFF; memset(hub->serial, 0, USB251XB_STRING_BUFSIZE); diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c index 1db2eefeea22..01f3c2779ccf 100644 --- a/drivers/usb/storage/onetouch.c +++ b/drivers/usb/storage/onetouch.c @@ -201,7 +201,7 @@ static int onetouch_connect_input(struct us_data *ss) onetouch->dev = input_dev; if (udev->manufacturer) - strlcpy(onetouch->name, udev->manufacturer, + strscpy(onetouch->name, udev->manufacturer, sizeof(onetouch->name)); if (udev->product) { if (udev->manufacturer) diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c index 96c55eaf3f80..ab89c014606e 100644 --- a/drivers/usb/typec/tcpm/fusb302.c +++ b/drivers/usb/typec/tcpm/fusb302.c @@ -151,7 +151,7 @@ static void _fusb302_log(struct fusb302_chip *chip, const char *fmt, if (fusb302_log_full(chip)) { chip->logbuffer_head = max(chip->logbuffer_head - 1, 0); - strlcpy(tmpbuffer, "overflow", sizeof(tmpbuffer)); + strscpy(tmpbuffer, "overflow", sizeof(tmpbuffer)); } if (chip->logbuffer_head < 0 || diff --git a/drivers/usb/usbip/stub_main.c b/drivers/usb/usbip/stub_main.c index 77a5b3f8736a..e8c3131a8543 100644 --- a/drivers/usb/usbip/stub_main.c +++ b/drivers/usb/usbip/stub_main.c @@ -100,7 +100,7 @@ static int add_match_busid(char *busid) for (i = 0; i < MAX_BUSID; i++) { spin_lock(&busid_table[i].busid_lock); if (!busid_table[i].name[0]) { - strlcpy(busid_table[i].name, busid, BUSID_SIZE); + strscpy(busid_table[i].name, busid, BUSID_SIZE); if ((busid_table[i].status != STUB_BUSID_ALLOC) && (busid_table[i].status != STUB_BUSID_REMOV)) busid_table[i].status = STUB_BUSID_ADDED;