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/aic94xx/aic94xx_init.c:267:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/aic94xx/aic94xx_init.c:276:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/aic94xx/aic94xx_init.c:284:8-16: WARNING: please use sysfs_emit > ./drivers/scsi/aic94xx/aic94xx_init.c:455:8-16: WARNING: please use sysfs_emit No functional change intended CC: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxx> CC: linux-scsi@xxxxxxxxxxxxxxx Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx> --- drivers/scsi/aic94xx/aic94xx_init.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index 8a3340d8d7ad..b006e852c40c 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -264,8 +264,7 @@ static ssize_t asd_show_dev_rev(struct device *dev, struct device_attribute *attr, char *buf) { struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); - return snprintf(buf, PAGE_SIZE, "%s\n", - asd_dev_rev[asd_ha->revision_id]); + return sysfs_emit(buf, "%s\n", asd_dev_rev[asd_ha->revision_id]); } static DEVICE_ATTR(aic_revision, S_IRUGO, asd_show_dev_rev, NULL); @@ -273,7 +272,7 @@ static ssize_t asd_show_dev_bios_build(struct device *dev, struct device_attribute *attr,char *buf) { struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); - return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld); + return sysfs_emit(buf, "%d\n", asd_ha->hw_prof.bios.bld); } static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL); @@ -281,7 +280,7 @@ static ssize_t asd_show_dev_pcba_sn(struct device *dev, struct device_attribute *attr, char *buf) { struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); - return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn); + return sysfs_emit(buf, "%s\n", asd_ha->hw_prof.pcba_sn); } static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL); @@ -452,9 +451,9 @@ static ssize_t asd_show_update_bios(struct device *dev, if (asd_ha->bios_status != FLASH_IN_PROGRESS) asd_ha->bios_status = FLASH_OK; - return snprintf(buf, PAGE_SIZE, "status=%x %s\n", - flash_error_table[i].err_code, - flash_error_table[i].reason); + return sysfs_emit(buf, "status=%x %s\n", + flash_error_table[i].err_code, + flash_error_table[i].reason); } static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR, @@ -937,7 +936,7 @@ static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time) static ssize_t version_show(struct device_driver *driver, char *buf) { - return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION); + return sysfs_emit(buf, "%s\n", ASD_DRIVER_VERSION); } static DRIVER_ATTR_RO(version); -- 2.29.2