From mboxrd@z Thu Jan  1 00:00:00 1970
From: Josh Triplett <josh@joshtriplett.org>
Subject: Re: [PATCH] Clarify error on directive in macro arguments (Re:
 [PATCH] jffs2: fix sparse errors: directive in argument list)
Date: Wed, 20 Nov 2013 15:53:16 -0800
Message-ID: <20131120235316.GB25026@jtriplet-mobl1>
References: <20131118013349.GM13318@ZenIV.linux.org.uk>
 <20131118020746.GX16018@ringworld.MIT.EDU>
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To: Greg Price <price@MIT.EDU>
Cc: Al Viro <viro@ZenIV.linux.org.uk>, Christopher Li <sparse@chrisli.org>, Joe Perches <joe@perches.com>, Erico Nunes <nunes.erico@gmail.com>, linux-sparse@vger.kernel.org, dwmw2 <dwmw2@infradead.org>, linux-mtd <linux-mtd@lists.infradead.org>, linux-kernel <linux-kernel@vger.kernel.org>

On Sun, Nov 17, 2013 at 09:07:46PM -0500, Greg Price wrote:
> From: Greg Price <price@mit.edu>
> Date: Sun, 17 Nov 2013 17:57:41 -0800
> Subject: [PATCH] Clarify error on directive in macro arguments
> 
> Preprocessor directives in the arguments of a real function
> are innocuous and in some contexts common.  If a developer
> doesn't realize that a "function" is implemented as a macro,
> they may mistake this error for a false alarm.
> 
> See http://www.spinics.net/lists/kernel/msg1636974.html
> and http://www.spinics.net/lists/kernel/msg1636976.html
> for an example.
> 
> Easy enough to clarify that this is a macro, so do it.
> 
> Signed-off-by: Greg Price <price@mit.edu>

Reviewed-by: Josh Triplett <josh@joshtriplett.org>

Good call.

>  pre-process.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/pre-process.c b/pre-process.c
> index d521318..db58a97 100644
> --- a/pre-process.c
> +++ b/pre-process.c
> @@ -204,7 +204,7 @@ static struct token *collect_arg(struct token *prev, int vararg, struct position
>  		if (next->pos.newline && match_op(next, '#')) {
>  			if (!next->pos.noexpand) {
>  				sparse_error(next->pos,
> -					     "directive in argument list");
> +					     "directive in macro argument list");
>  				preprocessor_line(stream, p);
>  				__free_token(next);	/* Free the '#' token */
>  				continue;
> -- 
> 1.8.3.2
> --
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