From patchwork Tue Jan 16 04:51:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Zhijian X-Patchwork-Id: 763565 Received: from esa8.hc1455-7.c3s2.iphmx.com (esa8.hc1455-7.c3s2.iphmx.com [139.138.61.253]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 920341BC4C; Tue, 16 Jan 2024 04:52:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=fujitsu.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=fujitsu.com X-IronPort-AV: E=McAfee;i="6600,9927,10954"; a="134244467" X-IronPort-AV: E=Sophos;i="6.04,198,1695654000"; d="scan'208";a="134244467" Received: from unknown (HELO oym-r1.gw.nic.fujitsu.com) ([210.162.30.89]) by esa8.hc1455-7.c3s2.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jan 2024 13:52:29 +0900 Received: from oym-m2.gw.nic.fujitsu.com (oym-nat-oym-m2.gw.nic.fujitsu.com [192.168.87.59]) by oym-r1.gw.nic.fujitsu.com (Postfix) with ESMTP id 506E3E8BF5; Tue, 16 Jan 2024 13:52:27 +0900 (JST) Received: from kws-ab3.gw.nic.fujitsu.com (kws-ab3.gw.nic.fujitsu.com [192.51.206.21]) by oym-m2.gw.nic.fujitsu.com (Postfix) with ESMTP id 8723CBF3FF; Tue, 16 Jan 2024 13:52:26 +0900 (JST) Received: from edo.cn.fujitsu.com (edo.cn.fujitsu.com [10.167.33.5]) by kws-ab3.gw.nic.fujitsu.com (Postfix) with ESMTP id 1C54E200A56FC; Tue, 16 Jan 2024 13:52:26 +0900 (JST) Received: from localhost.localdomain (unknown [10.167.226.45]) by edo.cn.fujitsu.com (Postfix) with ESMTP id A8FBC1A0160; Tue, 16 Jan 2024 12:52:25 +0800 (CST) From: Li Zhijian To: linux-kernel@vger.kernel.org Cc: Li Zhijian , "James E.J. Bottomley" , "Martin K. Petersen" , linux-scsi@vger.kernel.org Subject: [PATCH 38/42] drivers/scsi/scsi_transport_fc: Convert snprintf to sysfs_emit Date: Tue, 16 Jan 2024 12:51:47 +0800 Message-Id: <20240116045151.3940401-36-lizhijian@fujitsu.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20240116045151.3940401-1-lizhijian@fujitsu.com> References: <20240116041129.3937800-1-lizhijian@fujitsu.com> <20240116045151.3940401-1-lizhijian@fujitsu.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-TM-AS-Product-Ver: IMSS-9.1.0.1417-9.0.0.1002-28122.004 X-TM-AS-User-Approved-Sender: Yes X-TMASE-Version: IMSS-9.1.0.1417-9.0.1002-28122.004 X-TMASE-Result: 10--14.163000-10.000000 X-TMASE-MatchedRID: st9CF01730Y4ibokZ3+Q0CoiRKlBVkYIBXngI6jFvpfvd49YGReckMWl hj9iHeVpaAKUUskFh7lM0AWQBBcXdpRSkbxKeJc4LdBFrfY9r2n0swHSFcVJ6MC5DTEMxpeQfiq 1gj2xET8vYRhsicUjm84WYLmQfXYmFZzhICPDv1x7wqPa+cm9aflSepWcgdLPx8BJ7uScK205Q+ 5OtQJCFZ4W5X99NcSot+ix2ebieZ2XBXaJoB9JZxRFJJyf5BJe3QfwsVk0UbtuRXh7bFKB7ulHD smna5gFayom1eEUsbjd0Un7L1Xkx+Kqq72Zh9LCPpCuffGH9zI= X-TMASE-SNAP-Result: 1.821001.0001-0-1-22:0,33:0,34:0-0 Per filesystems/sysfs.rst, show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. coccinelle complains that there are still a couple of functions that use snprintf(). Convert them to sysfs_emit(). > ./drivers/scsi/scsi_transport_fc.c:1123:9-17: WARNING: please use sysfs_emit > ./drivers/scsi/scsi_transport_fc.c:1218:10-18: WARNING: please use sysfs_emit > ./drivers/scsi/scsi_transport_fc.c:1286:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/scsi_transport_fc.c:1304:9-17: WARNING: please use sysfs_emit > ./drivers/scsi/scsi_transport_fc.c:1665:9-17: WARNING: please use sysfs_emit > ./drivers/scsi/scsi_transport_fc.c:1891:9-17: WARNING: please use sysfs_emit > ./drivers/scsi/scsi_transport_fc.c:1915:9-17: WARNING: please use sysfs_emit > ./drivers/scsi/scsi_transport_fc.c:1967:9-17: WARNING: please use sysfs_emit > ./drivers/scsi/scsi_transport_fc.c:2000:8-16: WARNING: please use sysfs_emit No functional change intended CC: "James E.J. Bottomley" CC: "Martin K. Petersen" CC: linux-scsi@vger.kernel.org Signed-off-by: Li Zhijian --- drivers/scsi/scsi_transport_fc.c | 34 ++++++++++++++++---------------- 1 file changed, 17 insertions(+), 17 deletions(-) diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index b04075f19445..3335c31772e1 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -1120,7 +1120,7 @@ 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, @@ -1215,21 +1215,21 @@ 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); } } @@ -1283,7 +1283,7 @@ 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, @@ -1301,8 +1301,8 @@ 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 @@ -1662,7 +1662,7 @@ 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); @@ -1888,7 +1888,7 @@ 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); } @@ -1912,7 +1912,7 @@ 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); } @@ -1964,7 +1964,7 @@ 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); } @@ -1997,7 +1997,7 @@ 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) \ @@ -2106,7 +2106,7 @@ fc_stat_show(const struct device *dev, char *buf, unsigned long offset) if (i->f->get_fc_host_stats) { stats = (i->f->get_fc_host_stats)(shost); if (stats) - ret = snprintf(buf, 20, "0x%llx\n", + ret = sysfs_emit(buf, "0x%llx\n", (unsigned long long)*(u64 *)(((u8 *) stats) + offset)); } return ret;