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/message/fusion/mptscsih.c:3100:8-16: WARNING: please use sysfs_emit > ./drivers/message/fusion/mptscsih.c:3116:8-16: WARNING: please use sysfs_emit > ./drivers/message/fusion/mptscsih.c:3132:8-16: WARNING: please use sysfs_emit > ./drivers/message/fusion/mptscsih.c:3145:8-16: WARNING: please use sysfs_emit > ./drivers/message/fusion/mptscsih.c:3159:8-16: WARNING: please use sysfs_emit > ./drivers/message/fusion/mptscsih.c:3173:8-16: WARNING: please use sysfs_emit > ./drivers/message/fusion/mptscsih.c:3186:8-16: WARNING: please use sysfs_emit > ./drivers/message/fusion/mptscsih.c:3198:8-16: WARNING: please use sysfs_emit > ./drivers/message/fusion/mptscsih.c:3211:8-16: WARNING: please use sysfs_emit > ./drivers/message/fusion/mptscsih.c:3224:8-16: WARNING: please use sysfs_emit > ./drivers/message/fusion/mptscsih.c:3237:8-16: WARNING: please use sysfs_emit > ./drivers/message/fusion/mptscsih.c:3250:8-16: WARNING: please use sysfs_emit No functional change intended CC: Sathya Prakash <sathya.prakash@xxxxxxxxxxxx> CC: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxx> CC: Suganath Prabu Subramani <suganath-prabu.subramani@xxxxxxxxxxxx> CC: MPT-FusionLinux.pdl@xxxxxxxxxxxx CC: linux-scsi@xxxxxxxxxxxxxxx Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx> --- drivers/message/fusion/mptscsih.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index 9080a73b4ea6..24063b201699 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -3097,7 +3097,7 @@ 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", + 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, @@ -3113,7 +3113,7 @@ 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", + return sysfs_emit(buf, "%02x.%02x.%02x.%02x\n", (ioc->biosVersion & 0xFF000000) >> 24, (ioc->biosVersion & 0x00FF0000) >> 16, (ioc->biosVersion & 0x0000FF00) >> 8, @@ -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 +3156,7 @@ 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 +3169,7 @@ 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 +3182,7 @@ 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 +3194,7 @@ 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 +3207,7 @@ 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 +3220,7 @@ 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 +3233,7 @@ 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 +3246,7 @@ 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