From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [RFC/HACK] net/compat/wext: allow sending different messages to compat tasks Date: Mon, 22 Jun 2009 00:03:22 +0200 Message-ID: <200906220003.22458.arnd@arndb.de> References: <1245589835.5003.2.camel@johannes.local> Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org To: Johannes Berg Return-path: Received: from moutng.kundenserver.de ([212.227.126.188]:62931 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752457AbZFUWD3 (ORCPT ); Sun, 21 Jun 2009 18:03:29 -0400 In-Reply-To: <1245589835.5003.2.camel@johannes.local> Sender: netdev-owner@vger.kernel.org List-ID: On Sunday 21 June 2009, Johannes Berg wrote: > --- wireless-testing.orig/net/compat.c 2009-06-19 17:50:30.000000000 +0200 > +++ wireless-testing/net/compat.c 2009-06-19 17:53:13.000000000 +0200 > @@ -782,16 +782,18 @@ asmlinkage long compat_sys_socketcall(in > ret = sys_socketpair(a0, a1, a[2], compat_ptr(a[3])); > break; > case SYS_SEND: > - ret = sys_send(a0, compat_ptr(a1), a[2], a[3]); > + ret = sys_send(a0, compat_ptr(a1), a[2], a[3] | MSG_CMSG_COMPAT); > break; > case SYS_SENDTO: > - ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), a[5]); > + ret = sys_sendto(a0, compat_ptr(a1), a[2], a[3] | MSG_CMSG_COMPAT, > + compat_ptr(a[4]), a[5]); > break; > case SYS_RECV: > - ret = sys_recv(a0, compat_ptr(a1), a[2], a[3]); > + ret = sys_recv(a0, compat_ptr(a1), a[2], a[3] | MSG_CMSG_COMPAT); > break; > case SYS_RECVFROM: > - ret = sys_recvfrom(a0, compat_ptr(a1), a[2], a[3], compat_ptr(a[4]), compat_ptr(a[5])); > + ret = sys_recvfrom(a0, compat_ptr(a1), a[2], a[3] | MSG_CMSG_COMPAT, > + compat_ptr(a[4]), compat_ptr(a[5])); > break; > case SYS_SHUTDOWN: > ret = sys_shutdown(a0,a1); I suppose if you do this, you also need to introduce a compat_sys_{send,sendto,recv,recvfrom} entry point for architectures that do not go through sys_socket but call sys_{send,sendto,recv,recvfrom} directly. I think this is only sparc and mips. Arnd <><