linux-kernel - Re: [PATCH v2] checkpatch.pl: New instances of ENOSYS are errors

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Message-ID: <20140825102932.GA5772@amd>
Date:	Mon, 25 Aug 2014 12:29:32 +0200
From:	Pavel Machek <pavel@....cz>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	"Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>,
	Andy Whitcroft <apw@...onical.com>,
	Joe Perches <joe@...ches.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] checkpatch.pl: New instances of ENOSYS are errors

On Fri 2014-08-22 09:26:31, Andy Lutomirski wrote:
> ENOSYS means that a nonexistent system call was called.  We have a
> bad habit of using it for things like invalid operations on
> otherwise valid syscalls.  We should avoid this in new code.

Is it good idea? I mean, doing EINVAL for subcalls is pretty
unhelpful.
								Pavel

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