Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760644AbYGOAfA (ORCPT ); Mon, 14 Jul 2008 20:35:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755952AbYGOAex (ORCPT ); Mon, 14 Jul 2008 20:34:53 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:58473 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755507AbYGOAew (ORCPT ); Mon, 14 Jul 2008 20:34:52 -0400 Date: Mon, 14 Jul 2008 17:33:58 -0700 (PDT) From: Linus Torvalds To: david@lang.hm cc: Arjan van de Ven , Andrew Morton , David Woodhouse , alan@lxorguk.ukuu.org.uk, linux-kernel@vger.kernel.org Subject: Re: [GIT *] Allow request_firmware() to be satisfied from in-kernel, use it in more drivers. In-Reply-To: Message-ID: References: <1216077806.27455.85.camel@shinybook.infradead.org> <20080714164119.99c33d5b.akpm@linux-foundation.org> <20080714165956.7fe2d4ee@infradead.org> User-Agent: Alpine 1.10 (LFD 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1147 Lines: 33 On Mon, 14 Jul 2008, david@lang.hm wrote: > > there was also the issue that was raised about how to handle firmware during > suspend/resume. I don't remember seeing a happy solution to that one. I don't understand why this even keeps coming up. The only reliable way to handle it is to load the firmware before the suspend happens - preferably by simply never unloading it in the first place. Anything else is fraught with problems. Stuff that expects to eject itself anyway(*) over a suspend event can obviously decide to throw it away and require a reload at resume time (by virtue of simply re-discovering the whole device!). Everybody else should just keep the firmware in memory in the driver. Does it waste some ram? Sure. Tough. Linus (*) eg some random USB device that really _really_ doesn't care and isn't expected to be involved in any filesystem access - say a webcam. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/