From patchwork Fri Dec 23 20:03:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Deepak R Varma X-Patchwork-Id: 636534 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 BD5A7C4167B for ; Fri, 23 Dec 2022 20:04:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232712AbiLWUE1 (ORCPT ); Fri, 23 Dec 2022 15:04:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49902 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232160AbiLWUEZ (ORCPT ); Fri, 23 Dec 2022 15:04:25 -0500 Received: from msg-4.mailo.com (msg-4.mailo.com [213.182.54.15]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C99D21A3BD; Fri, 23 Dec 2022 12:04:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=mailo.com; s=mailo; t=1671825797; bh=TU8Xna5FVtCrVWYoFZDQvx7FY3KCTsRcmqVSvN3iXdY=; h=X-EA-Auth:Date:From:To:Cc:Subject:Message-ID:MIME-Version: Content-Type; b=icVhP19KW9QnEipzHhFYiprPx7poCvc2VKXINWcP7cj3cxaoY4OGH/ewWE9Md2Xze xfSdkqEAgoI7acqO4vHr5hFUo6WfjWYL4IZirlOXHCue/B33K4LsoDIh8ULjyre23l 9X2SLAfFbM9ARPJCIuIpczeEyBRIy+vdO2B10OYA= Received: by b-5.in.mailobj.net [192.168.90.15] with ESMTP via ip-206.mailobj.net [213.182.55.206] Fri, 23 Dec 2022 21:03:17 +0100 (CET) X-EA-Auth: Vvw/Vkc+ZhIkPzlv6mlYP9tKYtT2P337DYCZnkUorn+nPCkSQd5KKptAaIOjnVxyQMQueae8HtydHEptrY96H/b72ozCbylu Date: Sat, 24 Dec 2022 01:33:12 +0530 From: Deepak R Varma To: "James E.J. Bottomley" , "Martin K. Petersen" , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Saurabh Singh Sengar , Praveen Kumar , Deepak R Varma Subject: [PATCH] scsi: scsi_transport_fc: Use sysfs_emit in show function callsbacks Message-ID: MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org According to Documentation/filesystems/sysfs.rst, the show() callback function of kobject attributes should strictly use sysfs_emit() instead of sprintf() family functions. Also, merge split lines wherever possible due to shortened length of lines. Issue identified using the coccinelle device_attr_show.cocci script. Signed-off-by: Deepak R Varma --- drivers/scsi/scsi_transport_fc.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) -- 2.34.1 diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 0965f8a7134f..ace0df098774 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -1117,7 +1117,7 @@ show_fc_rport_supported_classes (struct device *dev, { struct fc_rport *rport = transport_class_to_rport(dev); if (rport->supported_classes == FC_COS_UNSPECIFIED) - return snprintf(buf, 20, "unspecified\n"); + return sysfs_emit(buf, "unspecified\n"); return get_fc_cos_names(rport->supported_classes, buf); } static FC_DEVICE_ATTR(rport, supported_classes, S_IRUGO, @@ -1212,21 +1212,21 @@ show_fc_rport_roles (struct device *dev, struct device_attribute *attr, FC_WELLKNOWN_PORTID_MASK) { switch (rport->port_id & FC_WELLKNOWN_ROLE_MASK) { case FC_FPORT_PORTID: - return snprintf(buf, 30, "Fabric Port\n"); + return sysfs_emit(buf, "Fabric Port\n"); case FC_FABCTLR_PORTID: - return snprintf(buf, 30, "Fabric Controller\n"); + return sysfs_emit(buf, "Fabric Controller\n"); case FC_DIRSRVR_PORTID: - return snprintf(buf, 30, "Directory Server\n"); + return sysfs_emit(buf, "Directory Server\n"); case FC_TIMESRVR_PORTID: - return snprintf(buf, 30, "Time Server\n"); + return sysfs_emit(buf, "Time Server\n"); case FC_MGMTSRVR_PORTID: - return snprintf(buf, 30, "Management Server\n"); + return sysfs_emit(buf, "Management Server\n"); default: - return snprintf(buf, 30, "Unknown Fabric Entity\n"); + return sysfs_emit(buf, "Unknown Fabric Entity\n"); } } else { if (rport->roles == FC_PORT_ROLE_UNKNOWN) - return snprintf(buf, 20, "unknown\n"); + return sysfs_emit(buf, "unknown\n"); return get_fc_port_roles_names(rport->roles, buf); } } @@ -1280,7 +1280,7 @@ show_fc_rport_port_state(struct device *dev, if (!name) return -EINVAL; - return snprintf(buf, 20, "%s\n", name); + return sysfs_emit(buf, "%s\n", name); } static FC_DEVICE_ATTR(rport, port_state, 0444 | 0200, @@ -1298,8 +1298,8 @@ show_fc_rport_fast_io_fail_tmo (struct device *dev, struct fc_rport *rport = transport_class_to_rport(dev); if (rport->fast_io_fail_tmo == -1) - return snprintf(buf, 5, "off\n"); - return snprintf(buf, 20, "%d\n", rport->fast_io_fail_tmo); + return sysfs_emit(buf, "off\n"); + return sysfs_emit(buf, "%d\n", rport->fast_io_fail_tmo); } static ssize_t @@ -1659,7 +1659,7 @@ show_fc_vport_roles (struct device *dev, struct device_attribute *attr, struct fc_vport *vport = transport_class_to_vport(dev); if (vport->roles == FC_PORT_ROLE_UNKNOWN) - return snprintf(buf, 20, "unknown\n"); + return sysfs_emit(buf, "unknown\n"); return get_fc_port_roles_names(vport->roles, buf); } static FC_DEVICE_ATTR(vport, roles, S_IRUGO, show_fc_vport_roles, NULL); @@ -1885,7 +1885,7 @@ show_fc_host_supported_classes (struct device *dev, struct Scsi_Host *shost = transport_class_to_shost(dev); if (fc_host_supported_classes(shost) == FC_COS_UNSPECIFIED) - return snprintf(buf, 20, "unspecified\n"); + return sysfs_emit(buf, "unspecified\n"); return get_fc_cos_names(fc_host_supported_classes(shost), buf); } @@ -1909,7 +1909,7 @@ show_fc_host_supported_speeds (struct device *dev, struct Scsi_Host *shost = transport_class_to_shost(dev); if (fc_host_supported_speeds(shost) == FC_PORTSPEED_UNKNOWN) - return snprintf(buf, 20, "unknown\n"); + return sysfs_emit(buf, "unknown\n"); return get_fc_port_speed_names(fc_host_supported_speeds(shost), buf); } @@ -1961,7 +1961,7 @@ show_fc_host_speed (struct device *dev, i->f->get_host_speed(shost); if (fc_host_speed(shost) == FC_PORTSPEED_UNKNOWN) - return snprintf(buf, 20, "unknown\n"); + return sysfs_emit(buf, "unknown\n"); return get_fc_port_speed_names(fc_host_speed(shost), buf); } @@ -1994,7 +1994,7 @@ show_fc_private_host_tgtid_bind_type(struct device *dev, name = get_fc_tgtid_bind_type_name(fc_host_tgtid_bind_type(shost)); if (!name) return -EINVAL; - return snprintf(buf, FC_BINDTYPE_MAX_NAMELEN, "%s\n", name); + return sysfs_emit(buf, "%s\n", name); } #define get_list_head_entry(pos, head, member) \