linux-kernel - Re: linux-next: build warning after merge of the scsi tree

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Message-ID: <1554439969.24612.41.camel@HansenPartnership.com>
Date:   Thu, 04 Apr 2019 21:52:49 -0700
From:   James Bottomley <James.Bottomley@...senPartnership.com>
To:     Bart Van Assche <bvanassche@....org>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: Re: linux-next: build warning after merge of the scsi tree

On Thu, 2019-04-04 at 21:30 -0700, Bart Van Assche wrote:
> On 4/4/19 8:25 PM, Stephen Rothwell wrote:
> > Hi James,
> > 
> > After merging the scsi tree, today's linux-next build (powerpc
> > ppc64_defconfig) produced this warning:
> > 
> > drivers/scsi/lpfc/lpfc_nvme.c:2140:1: warning:
> > 'lpfc_nvme_lport_unreg_wait' defined but not used [-Wunused-
> > function]
> >   lpfc_nvme_lport_unreg_wait(struct lpfc_vport *vport,
> >   ^~~~~~~~~~~~~~~~~~~~~~~~~~
> > 
> > Introduced by commit
> > 
> >    3999df75bccb ("scsi: lpfc: Declare local functions static")
> > 
> > It use is guarded by IS_ENABLED(CONFIG_NVME_FC).
> 
> I will have a closer look at this tomorrow.

In the meantime, we can just revert the patch.  Making functions static
serves no real purpose except it does tell the compiler they have to be
used internally which is where the problem is coming from.  Once the
issue is sorted, the static patch can be reapplied.

James