From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S970122AbdEYRtZ (ORCPT <rfc822;w@1wt.eu>);
        Thu, 25 May 2017 13:49:25 -0400
Received: from mail-io0-f179.google.com ([209.85.223.179]:34265 "EHLO
        mail-io0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1762356AbdEYRtY (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Thu, 25 May 2017 13:49:24 -0400
Date: Thu, 25 May 2017 10:49:21 -0700
From: Matthias Kaehlcke <mka@chromium.org>
To: Joe Perches <joe@perches.com>
Cc: Ingo Molnar <mingo@kernel.org>, David Rientjes <rientjes@google.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Christoph Lameter <cl@linux.com>, Pekka Enberg <penberg@kernel.org>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org, Douglas Anderson <dianders@chromium.org>,
        Mark Brown <broonie@kernel.org>, David Miller <davem@davemloft.net>
Subject: Re: [patch] compiler, clang: suppress warning for unused static
 inline functions
Message-ID: <20170525174921.GU141096@google.com>
References: <alpine.DEB.2.10.1705241400510.49680@chino.kir.corp.google.com>
 <20170524212229.GR141096@google.com>
 <20170525055207.udcphnshuzl2gkps@gmail.com>
 <20170525161406.GT141096@google.com>
 <1495730933.29207.6.camel@perches.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
In-Reply-To: <1495730933.29207.6.camel@perches.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Hi Joe,

El Thu, May 25, 2017 at 09:48:53AM -0700 Joe Perches ha dit:

> On Thu, 2017-05-25 at 09:14 -0700, Matthias Kaehlcke wrote:
> > clang doesn't raise
> > warnings about unused static inline functions in headers.
> 
> Is any "#include" file a "header" to clang or only "*.h" files?
> 
> For instance:
> 
> The kernel has ~500 .c files that other .c files #include.
> Are unused inline functions in those .c files reported?

Any "#include" file is a "header" to clang, no warnings are generated
for unused inline functions in included .c files.