Hi, On 2020/7/19 4:25, Bart Van Assche wrote: > On 2020-07-17 01:44, Xiongfeng Wang wrote: >> diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c >> index 182fd25..e443dee 100644 >> --- a/drivers/scsi/scsi_transport_sas.c >> +++ b/drivers/scsi/scsi_transport_sas.c >> @@ -563,7 +563,7 @@ static ssize_t do_sas_phy_enable(struct device *dev, >> { >> struct sas_phy *phy = transport_class_to_phy(dev); >> >> - return snprintf(buf, 20, "%d", phy->enabled); >> + return snprintf(buf, 20, "%d\n", phy->enabled); >> } > > For future sysfs show function patches, please use PAGE_SIZE as second > snprintf() argument or use sprintf() instead of snprintf() because in > this case it is clear that no output buffer overflow will happen. Using Thanks for your advice. I will follow it in the future patches. > any other size argument than PAGE_SIZE makes patches like the above > harder to verify than necessary. Anyway: > > Reviewed-by: Bart van Assche <bvanassche@xxxxxxx> Thanks, Xiongfeng >