Re: [PATCH 4/5] scsi: libsas: Drop SAS_DPRINTK() and revise logs levels

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On 14/11/2018 14:53, Joe Perches wrote:
On Wed, 2018-11-14 at 21:47 +0800, John Garry wrote:
Like sas_printk() did previously, SAS_DPRINTK() offers little value now
that libsas logs already have the "sas" prefix through pr_fmt(fmt). So it
can be dropped.

However, after reviewing some logs in libsas, it is noticed that debug
level is too low in many instances.

So this change drops SAS_DPRINTK() and revises some logs to a more
appropriate level. However many stay at debug level, although some
are significantly promoted.
[]
All the pre-existing checkpatch errors for spanning messages across
multiple lines are untouched.

I think coalescing would be useful.

Sorry, I missed that. Do you mean that we stop spanning strings over multiple lines?

If yes, I tend to agree. It means we can grep for full strings vs just a different checkpatch issue (>80 lines or spanning multiple lines)


Where there are already embedded "sas: "
prefixes, those should be removed too.

Ah, I missed that guy. File sas_ata.c may also have some.


You could verify this by using

	$ strings drivers/scsi/libsas/*.o | grep "^[0-7]"

@@ -186,10 +186,10 @@ int sas_notify_lldd_dev_found(struct domain_device *dev)

 	res = i->dft->lldd_dev_found(dev);
 	if (res) {
-		printk("sas: driver on pcidev %s cannot handle "
-		       "device %llx, error:%d\n",
-		       dev_name(sas_ha->dev),
-		       SAS_ADDR(dev->sas_addr), res);
+		pr_warn("sas: driver on pcidev %s cannot handle "
+			"device %llx, error:%d\n",
+			dev_name(sas_ha->dev),
+			SAS_ADDR(dev->sas_addr), res);

e.g.: this now emits "sas: sas: driver etc..."



Cheers,
John


.






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