linux-kernel - Re: [PATCH 001/001] drivers/staging/vt6656/main

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Message-ID: <1491017626.27353.31.camel@perches.com>
Date:   Fri, 31 Mar 2017 20:33:46 -0700
From:   Joe Perches <joe@...ches.com>
To:     Chewie Lin <linsh@...gonstate.edu>
Cc:     Randy Dunlap <rdunlap@...radead.org>, greg@...ah.com,
        forest@...ttletooquiet.net, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 001/001] drivers/staging/vt6656/main_usb.c: checkpatch
 warning

On Fri, 2017-03-31 at 20:18 -0700, Chewie Lin wrote:
> These are good points, but any feedback on the dev_warn() call itself?
> I was trying to fix the checkpatch warning on my first try.

Using "%s" with a long string is generally inefficient.

Compare the compiled object size of
	printf("%s is %d\n", "Long string", 1);
to
	printf("Long string is %d\n", 1);