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From: Li Zhijian <lizhijian@fujitsu.com>
To: linux-kernel@vger.kernel.org
Cc: Li Zhijian <lizhijian@fujitsu.com>,
	Sathya Prakash <sathya.prakash@broadcom.com>,
	Sreekanth Reddy <sreekanth.reddy@broadcom.com>,
	Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>,
	MPT-FusionLinux.pdl@broadcom.com,
	linux-scsi@vger.kernel.org
Subject: [PATCH v2] scsi: message: fusion: Convert sprintf/snprintf to sysfs_emit
Date: Thu, 14 Mar 2024 17:14:23 +0800
Message-Id: <20240314091423.1323600-1-lizhijian@fujitsu.com>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

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().

sprintf() will be converted as weel if they have.

Generally, this patch is generated by
make coccicheck M=<path/to/file> MODE=patch \
COCCI=scripts/coccinelle/api/device_attr_show.cocci

No functional change intended

CC: Sathya Prakash <sathya.prakash@broadcom.com>
CC: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
CC: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
CC: MPT-FusionLinux.pdl@broadcom.com
CC: linux-scsi@vger.kernel.org
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
---
This is a part of the work "Fix coccicheck device_attr_show warnings"[1]
Split them per subsystem so that the maintainer can review it easily
[1] https://lore.kernel.org/lkml/20240116041129.3937800-1-lizhijian@fujitsu.com/
---
 drivers/message/fusion/mptscsih.c | 42 +++++++++++++++----------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index 9080a73b4ea6..df4b2ebd30ec 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -3097,11 +3097,11 @@ mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr,
 	MPT_SCSI_HOST	*hd = shost_priv(host);
 	MPT_ADAPTER *ioc = hd->ioc;
 
-	return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
-	    (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
-	    (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
-	    (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
-	    ioc->facts.FWVersion.Word & 0x000000FF);
+	return sysfs_emit(buf, "%02d.%02d.%02d.%02d\n",
+			  (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
+			  (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
+			  (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
+			  ioc->facts.FWVersion.Word & 0x000000FF);
 }
 static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL);
 
@@ -3113,11 +3113,11 @@ mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr,
 	MPT_SCSI_HOST	*hd = shost_priv(host);
 	MPT_ADAPTER *ioc = hd->ioc;
 
-	return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
-	    (ioc->biosVersion & 0xFF000000) >> 24,
-	    (ioc->biosVersion & 0x00FF0000) >> 16,
-	    (ioc->biosVersion & 0x0000FF00) >> 8,
-	    ioc->biosVersion & 0x000000FF);
+	return sysfs_emit(buf, "%02x.%02x.%02x.%02x\n",
+			  (ioc->biosVersion & 0xFF000000) >> 24,
+			  (ioc->biosVersion & 0x00FF0000) >> 16,
+			  (ioc->biosVersion & 0x0000FF00) >> 8,
+			  ioc->biosVersion & 0x000000FF);
 }
 static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL);
 
@@ -3129,7 +3129,7 @@ mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr,
 	MPT_SCSI_HOST	*hd = shost_priv(host);
 	MPT_ADAPTER *ioc = hd->ioc;
 
-	return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion);
+	return sysfs_emit(buf, "%03x\n", ioc->facts.MsgVersion);
 }
 static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL);
 
@@ -3142,7 +3142,7 @@ char *buf)
 	MPT_SCSI_HOST	*hd = shost_priv(host);
 	MPT_ADAPTER *ioc = hd->ioc;
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name);
+	return sysfs_emit(buf, "%s\n", ioc->prod_name);
 }
 static DEVICE_ATTR(version_product, S_IRUGO,
     mptscsih_version_product_show, NULL);
@@ -3156,8 +3156,8 @@ mptscsih_version_nvdata_persistent_show(struct device *dev,
 	MPT_SCSI_HOST	*hd = shost_priv(host);
 	MPT_ADAPTER *ioc = hd->ioc;
 
-	return snprintf(buf, PAGE_SIZE, "%02xh\n",
-	    ioc->nvdata_version_persistent);
+	return sysfs_emit(buf, "%02xh\n",
+			  ioc->nvdata_version_persistent);
 }
 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
     mptscsih_version_nvdata_persistent_show, NULL);
@@ -3170,7 +3170,7 @@ mptscsih_version_nvdata_default_show(struct device *dev,
 	MPT_SCSI_HOST	*hd = shost_priv(host);
 	MPT_ADAPTER *ioc = hd->ioc;
 
-	return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default);
+	return sysfs_emit(buf, "%02xh\n",ioc->nvdata_version_default);
 }
 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
     mptscsih_version_nvdata_default_show, NULL);
@@ -3183,7 +3183,7 @@ mptscsih_board_name_show(struct device *dev, struct device_attribute *attr,
 	MPT_SCSI_HOST	*hd = shost_priv(host);
 	MPT_ADAPTER *ioc = hd->ioc;
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name);
+	return sysfs_emit(buf, "%s\n", ioc->board_name);
 }
 static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL);
 
@@ -3195,7 +3195,7 @@ mptscsih_board_assembly_show(struct device *dev,
 	MPT_SCSI_HOST	*hd = shost_priv(host);
 	MPT_ADAPTER *ioc = hd->ioc;
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly);
+	return sysfs_emit(buf, "%s\n", ioc->board_assembly);
 }
 static DEVICE_ATTR(board_assembly, S_IRUGO,
     mptscsih_board_assembly_show, NULL);
@@ -3208,7 +3208,7 @@ mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr,
 	MPT_SCSI_HOST	*hd = shost_priv(host);
 	MPT_ADAPTER *ioc = hd->ioc;
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer);
+	return sysfs_emit(buf, "%s\n", ioc->board_tracer);
 }
 static DEVICE_ATTR(board_tracer, S_IRUGO,
     mptscsih_board_tracer_show, NULL);
@@ -3221,7 +3221,7 @@ mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr,
 	MPT_SCSI_HOST	*hd = shost_priv(host);
 	MPT_ADAPTER *ioc = hd->ioc;
 
-	return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
+	return sysfs_emit(buf, "%02d\n", ioc->io_missing_delay);
 }
 static DEVICE_ATTR(io_delay, S_IRUGO,
     mptscsih_io_delay_show, NULL);
@@ -3234,7 +3234,7 @@ mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr,
 	MPT_SCSI_HOST	*hd = shost_priv(host);
 	MPT_ADAPTER *ioc = hd->ioc;
 
-	return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
+	return sysfs_emit(buf, "%02d\n", ioc->device_missing_delay);
 }
 static DEVICE_ATTR(device_delay, S_IRUGO,
     mptscsih_device_delay_show, NULL);
@@ -3247,7 +3247,7 @@ mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr,
 	MPT_SCSI_HOST	*hd = shost_priv(host);
 	MPT_ADAPTER *ioc = hd->ioc;
 
-	return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level);
+	return sysfs_emit(buf, "%08xh\n", ioc->debug_level);
 }
 static ssize_t
 mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr,
-- 
2.29.2