From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mikko Rapeli Subject: Re: [PATCH 2/4] uapi glibc compat: fix build if libc defines IFF_ECHO Date: Mon, 13 Mar 2017 13:28:55 +0200 Message-ID: <20170313112855.GA8672@lakka.kapsi.fi> References: <20170312220039.16885-1-hauke@hauke-m.de> <20170312220039.16885-3-hauke@hauke-m.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: davem@davemloft.net, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, jarod@redhat.com, jogo@openwrt.org, david.heidelberger@ixit.cz, maillist-linux@barfooze.de To: Hauke Mehrtens Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:37796 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750846AbdCML27 (ORCPT ); Mon, 13 Mar 2017 07:28:59 -0400 Content-Disposition: inline In-Reply-To: <20170312220039.16885-3-hauke@hauke-m.de> Sender: netdev-owner@vger.kernel.org List-ID: On Sun, Mar 12, 2017 at 11:00:37PM +0100, Hauke Mehrtens wrote: > musl 1.1.15 defines IFF_ECHO and the other net_device_flags options. > When a user application includes linux/if.h and net/if.h the compile > will fail. > > Activate __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO only when > it is needed. This should also make this work in case glibc will add > these defines. > > Signed-off-by: Hauke Mehrtens Acked-by: Mikko Rapeli > --- > include/uapi/linux/libc-compat.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/include/uapi/linux/libc-compat.h b/include/uapi/linux/libc-compat.h > index 7c1fead03c50..49a8cc3138ae 100644 > --- a/include/uapi/linux/libc-compat.h > +++ b/include/uapi/linux/libc-compat.h > @@ -64,9 +64,11 @@ > /* Everything up to IFF_DYNAMIC, matches net/if.h until glibc 2.23 */ > #define __UAPI_DEF_IF_NET_DEVICE_FLAGS 0 > /* For the future if glibc adds IFF_LOWER_UP, IFF_DORMANT and IFF_ECHO */ > +#ifndef IFF_ECHO > #ifndef __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO > #define __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO 1 > #endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */ > +#endif /* IFF_ECHO */ > > #else /* _NET_IF_H */ > > -- > 2.11.0 >