linux-kernel - Re: [PATCH 4/5] scsi: libsas: Drop SAS

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Date:   Wed, 14 Nov 2018 08:39:04 -0800
From:   Joe Perches <joe@...ches.com>
To:     John Garry <john.garry@...wei.com>, jejb@...ux.vnet.ibm.com,
        martin.petersen@...cle.com
Cc:     hare@...e.com, yanaijie@...wei.com, linuxarm@...wei.com,
        linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: [PATCH 4/5] scsi: libsas: Drop SAS_DPRINTK() and revise logs
 levels

On Wed, 2018-11-14 at 15:12 +0000, John Garry wrote:
> 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?

Yes.

> 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)

checkpatch does not emit a warning when a string is the
last element of a line that is > 80 chars when the
string stats before position 79.