Messages in this thread | | | Subject | Re: [PATCH] scsi: csiostor: replace snprintf with sysfs_emit | From | Joe Perches <> | Date | Tue, 08 Feb 2022 19:12:43 -0800 |
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On Wed, 2022-02-09 at 11:36 +0900, Damien Le Moal wrote: > On 2/9/22 09:40, davidcomponentone@gmail.com wrote: > > From: Yang Guang <yang.guang5@zte.com.cn> > > > > coccinelle report: > > ./drivers/scsi/csiostor/csio_scsi.c:1433:8-16: > > WARNING: use scnprintf or sprintf > > ./drivers/scsi/csiostor/csio_scsi.c:1369:9-17: > > WARNING: use scnprintf or sprintf > > ./drivers/scsi/csiostor/csio_scsi.c:1479:8-16: > > WARNING: use scnprintf or sprintf > > > > Use sysfs_emit instead of scnprintf or sprintf makes more sense. [] > > diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c [] > > @@ -1366,9 +1366,9 @@ csio_show_hw_state(struct device *dev, > > struct csio_hw *hw = csio_lnode_to_hw(ln); > > > > if (csio_is_hw_ready(hw)) > > - return snprintf(buf, PAGE_SIZE, "ready\n"); > > + return sysfs_emit(buf, "ready\n"); > > else > > - return snprintf(buf, PAGE_SIZE, "not ready\n"); > > + return sysfs_emit(buf, "not ready\n"); > > While at it, you could remove the useless "else" above.
Or not. It's fine as is. It's just a style preference.
Another style option would be to use a ?: like any of
return sysfs_emit(buf, "%sready\n", csio_is_hw_ready(hw) ? "" : "not "); or return sysfs_emit(buf, "%s\n", csio_is_hw_ready(hw) ? "ready" : "not ready"); or return sysfs_emit(buf, csio_is_hw_ready(hw) ? "ready\n" : "not ready\n");
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