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/qla4xxx/ql4_attr.c:159:9-17: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:173:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:181:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:190:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:200:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:210:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:223:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:235:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:247:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:256:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:264:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:273:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:281:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:303:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/qla4xxx/ql4_attr.c:312:8-16: WARNING: please use sysfs_emit No functional change intended CC: Nilesh Javali <njavali@xxxxxxxxxxx> CC: Manish Rangankar <mrangankar@xxxxxxxxxxx> CC: GR-QLogic-Storage-Upstream@xxxxxxxxxxx CC: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxx> CC: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx> CC: linux-scsi@xxxxxxxxxxxxxxx Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx> --- drivers/scsi/qla4xxx/ql4_attr.c | 48 ++++++++++++++++----------------- 1 file changed, 24 insertions(+), 24 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_attr.c b/drivers/scsi/qla4xxx/ql4_attr.c index abfa6ef60480..8d2ff36338c0 100644 --- a/drivers/scsi/qla4xxx/ql4_attr.c +++ b/drivers/scsi/qla4xxx/ql4_attr.c @@ -156,13 +156,13 @@ qla4xxx_fw_version_show(struct device *dev, struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev)); if (is_qla80XX(ha)) - return snprintf(buf, PAGE_SIZE, "%d.%02d.%02d (%x)\n", - ha->fw_info.fw_major, ha->fw_info.fw_minor, - ha->fw_info.fw_patch, ha->fw_info.fw_build); + return sysfs_emit(buf, "%d.%02d.%02d (%x)\n", + ha->fw_info.fw_major, ha->fw_info.fw_minor, + ha->fw_info.fw_patch, ha->fw_info.fw_build); else - return snprintf(buf, PAGE_SIZE, "%d.%02d.%02d.%02d\n", - ha->fw_info.fw_major, ha->fw_info.fw_minor, - ha->fw_info.fw_patch, ha->fw_info.fw_build); + return sysfs_emit(buf, "%d.%02d.%02d.%02d\n", + ha->fw_info.fw_major, ha->fw_info.fw_minor, + ha->fw_info.fw_patch, ha->fw_info.fw_build); } static ssize_t @@ -170,7 +170,7 @@ qla4xxx_serial_num_show(struct device *dev, struct device_attribute *attr, char *buf) { struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev)); - return snprintf(buf, PAGE_SIZE, "%s\n", ha->serial_number); + return sysfs_emit(buf, "%s\n", ha->serial_number); } static ssize_t @@ -178,8 +178,8 @@ qla4xxx_iscsi_version_show(struct device *dev, struct device_attribute *attr, char *buf) { struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev)); - return snprintf(buf, PAGE_SIZE, "%d.%02d\n", ha->fw_info.iscsi_major, - ha->fw_info.iscsi_minor); + return sysfs_emit(buf, "%d.%02d\n", ha->fw_info.iscsi_major, + ha->fw_info.iscsi_minor); } static ssize_t @@ -187,7 +187,7 @@ qla4xxx_optrom_version_show(struct device *dev, struct device_attribute *attr, char *buf) { struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev)); - return snprintf(buf, PAGE_SIZE, "%d.%02d.%02d.%02d\n", + return sysfs_emit(buf, "%d.%02d.%02d.%02d\n", ha->fw_info.bootload_major, ha->fw_info.bootload_minor, ha->fw_info.bootload_patch, ha->fw_info.bootload_build); } @@ -197,7 +197,7 @@ qla4xxx_board_id_show(struct device *dev, struct device_attribute *attr, char *buf) { struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev)); - return snprintf(buf, PAGE_SIZE, "0x%08X\n", ha->board_id); + return sysfs_emit(buf, "0x%08X\n", ha->board_id); } static ssize_t @@ -207,8 +207,8 @@ qla4xxx_fw_state_show(struct device *dev, struct device_attribute *attr, struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev)); qla4xxx_get_firmware_state(ha); - return snprintf(buf, PAGE_SIZE, "0x%08X%8X\n", ha->firmware_state, - ha->addl_fw_state); + return sysfs_emit(buf, "0x%08X%8X\n", ha->firmware_state, + ha->addl_fw_state); } static ssize_t @@ -220,7 +220,7 @@ qla4xxx_phy_port_cnt_show(struct device *dev, struct device_attribute *attr, if (is_qla40XX(ha)) return -ENOSYS; - return snprintf(buf, PAGE_SIZE, "0x%04X\n", ha->phy_port_cnt); + return sysfs_emit(buf, "0x%04X\n", ha->phy_port_cnt); } static ssize_t @@ -232,7 +232,7 @@ qla4xxx_phy_port_num_show(struct device *dev, struct device_attribute *attr, if (is_qla40XX(ha)) return -ENOSYS; - return snprintf(buf, PAGE_SIZE, "0x%04X\n", ha->phy_port_num); + return sysfs_emit(buf, "0x%04X\n", ha->phy_port_num); } static ssize_t @@ -244,7 +244,7 @@ qla4xxx_iscsi_func_cnt_show(struct device *dev, struct device_attribute *attr, if (is_qla40XX(ha)) return -ENOSYS; - return snprintf(buf, PAGE_SIZE, "0x%04X\n", ha->iscsi_pci_func_cnt); + return sysfs_emit(buf, "0x%04X\n", ha->iscsi_pci_func_cnt); } static ssize_t @@ -253,7 +253,7 @@ qla4xxx_hba_model_show(struct device *dev, struct device_attribute *attr, { struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev)); - return snprintf(buf, PAGE_SIZE, "%s\n", ha->model_name); + return sysfs_emit(buf, "%s\n", ha->model_name); } static ssize_t @@ -261,8 +261,8 @@ qla4xxx_fw_timestamp_show(struct device *dev, struct device_attribute *attr, char *buf) { struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev)); - return snprintf(buf, PAGE_SIZE, "%s %s\n", ha->fw_info.fw_build_date, - ha->fw_info.fw_build_time); + return sysfs_emit(buf, "%s %s\n", ha->fw_info.fw_build_date, + ha->fw_info.fw_build_time); } static ssize_t @@ -270,7 +270,7 @@ qla4xxx_fw_build_user_show(struct device *dev, struct device_attribute *attr, char *buf) { struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev)); - return snprintf(buf, PAGE_SIZE, "%s\n", ha->fw_info.fw_build_user); + return sysfs_emit(buf, "%s\n", ha->fw_info.fw_build_user); } static ssize_t @@ -278,7 +278,7 @@ qla4xxx_fw_ext_timestamp_show(struct device *dev, struct device_attribute *attr, char *buf) { struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev)); - return snprintf(buf, PAGE_SIZE, "%s\n", ha->fw_info.extended_timestamp); + return sysfs_emit(buf, "%s\n", ha->fw_info.extended_timestamp); } static ssize_t @@ -300,7 +300,7 @@ qla4xxx_fw_load_src_show(struct device *dev, struct device_attribute *attr, break; } - return snprintf(buf, PAGE_SIZE, "%s\n", load_src); + return sysfs_emit(buf, "%s\n", load_src); } static ssize_t @@ -309,8 +309,8 @@ qla4xxx_fw_uptime_show(struct device *dev, struct device_attribute *attr, { struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev)); qla4xxx_about_firmware(ha); - return snprintf(buf, PAGE_SIZE, "%u.%u secs\n", ha->fw_uptime_secs, - ha->fw_uptime_msecs); + return sysfs_emit(buf, "%u.%u secs\n", ha->fw_uptime_secs, + ha->fw_uptime_msecs); } static DEVICE_ATTR(fw_version, S_IRUGO, qla4xxx_fw_version_show, NULL); -- 2.29.2