From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Wu, Bryan" Subject: Re: [PATCH] CONFIG_PACKET_MMAP should depend on MMU Date: Mon, 09 Apr 2007 17:50:22 +0800 Message-ID: <1176112223.17975.8.camel@roc-desktop> References: <6d6a94c50704082001y5c13c865ic3d70217aba7d181@mail.gmail.com> Reply-To: bryan.wu@analog.com Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, Andrew Morton , Linux Kernel To: Alan Cox , waltje@uWalt.NL.Mugnet.ORG, Aubrey Li Return-path: Received: from nwd2mail11.analog.com ([137.71.25.57]:15196 "EHLO nwd2mail11.analog.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752689AbXDIJsT (ORCPT ); Mon, 9 Apr 2007 05:48:19 -0400 In-Reply-To: <6d6a94c50704082001y5c13c865ic3d70217aba7d181@mail.gmail.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Mon, 2007-04-09 at 11:01 +0800, Aubrey Li wrote: > The option CONFIG_PACKET_MMAP should depend on MMU. > > Signed-off-by: Aubrey.Li > --- > net/packet/Kconfig | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/net/packet/Kconfig b/net/packet/Kconfig > index 34ff93f..959c272 100644 > --- a/net/packet/Kconfig > +++ b/net/packet/Kconfig > @@ -17,7 +17,7 @@ config PACKET > > config PACKET_MMAP > bool "Packet socket: mmapped IO" > - depends on PACKET > + depends on PACKET && MMU > help > If you say Y here, the Packet protocol driver will use an IO > mechanism that results in faster communication. Yeah, this is a bug found on blackfin arch and it is also for other NOMMU arch. Is there any solution for this? We think Aubrey's idea works. Thanks -Bryan