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

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Message-ID: <1423032445.16386.1.camel@perches.com>
Date:	Tue, 03 Feb 2015 22:47:25 -0800
From:	Joe Perches <joe@...ches.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	James Bottomley <James.Bottomley@...senPartnership.com>,
	Greg KH <greg@...ah.com>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, Hannes Reinecke <hare@...e.de>,
	Christoph Hellwig <hch@....de>
Subject: Re: linux-next: build failure after merge of the scsi tree

(adding Christoph Hellwig)

On Wed, 2015-02-04 at 17:29 +1100, Stephen Rothwell wrote:
> Hi James,
> 
> After merging the scsi tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
> 
> drivers/scsi/scsi_logging.c: In function 'sdev_prefix_printk':
> drivers/scsi/scsi_logging.c:119:6: error: void value not ignored as it ought to be
>   ret = dev_printk(level, &sdev->sdev_gendev, "%s", logbuf);
>       ^
> drivers/scsi/scsi_logging.c: In function 'scmd_printk':
> drivers/scsi/scsi_logging.c:146:6: error: void value not ignored as it ought to be
>   ret = dev_printk(level, &scmd->device->sdev_gendev, "%s", logbuf);
>       ^
> 
> Caused by commit ded85c193a39 ("scsi: Implement per-cpu logging
> buffer") interacting with commit d1f1052c5204 ("device: Change
> dev_<level> logging functions to return void") from the driver-core
> tree.
> 
> I added the following merge resolution patch.  Someone will have to
> remember to tell Linus.  Also, the void return may be able to be
> propagated further up the chain since these two new affected functions
> now always return 0.

Thanks and just so.

It seems that nothing uses either return value,
so it's probably better to use void for both
sdev_prefix_printk and scmd_printk.


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