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[209.132.180.67]) by mx.google.com with ESMTP id q11si9946509pgf.90.2018.03.06.07.42.02; Tue, 06 Mar 2018 07:42:17 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=fail header.i=@sirena.org.uk header.s=20170815-heliosphere header.b=sPTikNp9; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753952AbeCFPjs (ORCPT + 99 others); Tue, 6 Mar 2018 10:39:48 -0500 Received: from heliosphere.sirena.org.uk ([172.104.155.198]:33326 "EHLO heliosphere.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753923AbeCFPjn (ORCPT ); Tue, 6 Mar 2018 10:39:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sirena.org.uk; s=20170815-heliosphere; h=In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=WvzizHzNJuOb0SBb50XuUdHcLPhcq/jCVyQVxMY9P94=; b=sPTikNp9fuV7UhKK4PNwOBqoM lUhUl1EiRoqNc8EnyI1AqicloMRXWCKINfYg+KnnTEIZN8MygV/ZBmoWJGingKpL9XymW1ksvsqDd fTaCAHcYT3zleoURBt3lo7Afp3Lf7QhXQzHTVvFbHK0vkpe8qQz6Zz44J7qdamu4zsO9o=; Received: from debutante.sirena.org.uk ([2001:470:1f1d:6b5::3] helo=debutante) by heliosphere.sirena.org.uk with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1etEgn-0007J2-8Q; Tue, 06 Mar 2018 15:39:41 +0000 Received: from broonie by debutante with local (Exim 4.90_1) (envelope-from ) id 1etEgm-0007xN-IN; Tue, 06 Mar 2018 15:39:40 +0000 Date: Tue, 6 Mar 2018 15:39:40 +0000 From: Mark Brown To: Jonas Gorski Cc: Sasha Levin , "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" Subject: Re: [PATCH AUTOSEL for 4.9 002/219] spi/bcm63xx: make spi subsystem aware of message size limits Message-ID: <20180306153940.GD13586@sirena.org.uk> References: <20180303222716.26640-1-alexander.levin@microsoft.com> <20180303222716.26640-2-alexander.levin@microsoft.com> <20180305102310.GC8588@sirena.org.uk> <20180305200744.afw64js6wnmyfqrb@sasha-lappy> <20180305203533.GP8588@sirena.org.uk> <20180306142012.GB13586@sirena.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="JwB53PgKC5A7+0Ej" Content-Disposition: inline In-Reply-To: X-Cookie: DYSLEXICS OF THE WORLD, UNTIE! User-Agent: Mutt/1.9.3 (2018-01-21) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --JwB53PgKC5A7+0Ej Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Mar 06, 2018 at 04:33:34PM +0100, Jonas Gorski wrote: > I would assume that this is true for most systems with a limited SPI > controller. I would hope that most board designers are sensible enough > to not add devices that won't work ;-) With things like firmware downloads the problem is that they can generally work, they're just horribly inefficient since you have to chunk them up into multiple operations rather than just pointing the hardware at a big buffer and letting it get on with things (same problem as with flash really). --JwB53PgKC5A7+0Ej Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAlqetjsACgkQJNaLcl1U h9BYqgf9Hweq1HR3HmxLk0MmjWrT2oaq3qvHsUvT6ZR2vny/Mmsm7J8kMRp72pDd UMYnofaiHg5GuXiAufMPhS9sI0t+SwOlnpFVjo+McPYf42+n6OaktM7BQl3kZHA+ wg5x9+/9fQNpSbLtkLkS2SusjcQl8+mWzJct6/UTGTVFimZ/GK2rZFYguIwKIEjw 6pLBRggKwQQQZgPhyXPS4A4aU14znuJul4Z6XXHpDkfv3RD61FqWKyeUxnS3PP9S qRtHYMkrq7jGrK7LwkG1eadSsroc2efFWzAaNIrikMxbrCn6iMRe/GRN92BpSUby Joq51JefBCV+hcFCaCqoZ7+8GhkTXg== =/sMz -----END PGP SIGNATURE----- --JwB53PgKC5A7+0Ej--