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Mon, 27 Aug 2018 19:30:50 +0000 Received: from [IPv6:2001:470:1b4a:0:405:5dff:fe10:5138] (unknown [IPv6:2001:470:1b4a:0:405:5dff:fe10:5138]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by zebedee.buttersideup.com (Postfix) with ESMTPSA id D9D69A0D03; Mon, 27 Aug 2018 19:30:23 +0000 (UTC) Subject: Re: [PATCH] EDAC: Remove the i82443bxgx_edac driver To: Borislav Petkov , Takashi Iwai Cc: Mauro Carvalho Chehab , linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org References: <20180810141520.8993-1-tiwai@suse.de> <20180815155752.GC28669@nazgul.tnic> <20180815161205.GD28669@nazgul.tnic> <20180827164535.GB22318@nazgul.tnic> From: Tim Small Openpgp: preference=signencrypt Autocrypt: addr=tim@buttersideup.com; prefer-encrypt=mutual; keydata= xsFJBFbUjJEBD+CpH8I/QfVdU9sQ3WrRK1rA6apqlaYvSYy1/vaZCkUVIaMvqjyj56iAE/9+ MhDLj045F1/mfQ/8HNxoraSL9IjH2XTZD+75EPHMTbqDV5eGLPIf5eQw7P7VcjcQLGal25XI EPMWIIaqKWEQWfpYob4CQURZ18lNpsbNIdDu70tXXaCxvExA3swV8Yum04ImAY6l8daG/P4S ygoUJIkwUyNt2Mw+mnV8suK9QxaZBHTkVIiCirbSX2Ru488QePfGIg3VMzWF3fFBcjuAaxUM JtdZmR0lHHMDVGjKfVGJnN2EaEbnhkn0o164vUL0SMt13yJjDhlwEXH0OjgBTAhTlyv5ETBN Loo70blviKuxurGgYcRX293X6yv97EaU/FgAmfKtb9VWp4NQdnpcUU+KKuZhe1GG+iYuQc95 TR/Icyqu5v6QlF5BEWLNN0z1qEsWvSHsICn3XfmSSj7uZwM2jSfsWRnSpHe5rIu4wb8kPOWh vqbZSdhccT0cX5e8yGs9mpcHWfI6qpck4i0hVmE1CFQE7BhsCJ1iCOXZbv9KnIsuxRpYNc15 5niyMNNT2RkHBFqrEVjRBcEO8pAFP3DigM8YtjJcXiO2joL6Co7vX9rW1U9vDS2reoHlCkw7 EFFCzocoNjqwnKa7om+VdpzHXktru9NSKR26UbRmLaA7ABEBAAHNKlRpbW90aHkgSmFtZXMg U21hbGwgPHRpbUBidXR0ZXJzaWRldXAuY29tPsLBcgQTAQoAIAIbAwILCQQVCgkIBRYCAwEA Ah4BAheABQJW1WBuAhkBAAoJEDhbfqu7piqP43YP3ietxZZYTJftl8xn7Y/+8qHJzQEhLlbc ujd0wVUKkOevUHwMtCcFVYqLddvIJn7b1gkorlP3CPqdTh0IJqwEhuYYOfSX9M+NZMxMdw+Q xiTSLNAW7tpFBRz0iZB+8DtFRahVoT/s3gvT+02IcBKf1q+3I87QubZgE0a2/9XWOuYy6orc a27FluXlBi9px/cvPLR4gpjfPgfUanYMsJS+0+gisvIjCR89ZvuYH5+kQgiRl269jdB+OuvE InL7omYSeXls6hD22NriFrj6A27x7BfVhgNXTVzbAUTDOWiDsn/R4crhK+Y7HEfyuEzEDOjY 321vKoVhDzfABtc6Eom0uiszzcxZ9khHbI7IWg80PAhiHj/+ZtXl9PeOBM1z1mdXjhpDCdvv KQB0hiv7SlIbUkGBHuL00H1U224DAF8YyI8U2rzvrPnRaLczFp1Y9acqcsnfpqVm8aGM6zzd pBvPyj0pSPfqYy1OuBKWjGfwOwsQgL9LZeqjsoMc2qRwsS+JwKRWUZQGYYMgv9svpHajfJdQ 5+6IbdEPJUqqp2w0WtNYjM7pPFEOu3FGl0KDkMntt8vm1STqfiTky70KcFRdoHgsZ+uanpi8 +QaknQtWsBA3+rgU5fis+XEsyVnT8DWPgel0p69reHsju9XQXNM0S6fPEwQCt7i5AXkkoqbO wU0EVt2qLQEQAME29tgTZYZr58WiJ4JeRKuO3kViqgFwacfSI6OEOcOB9ehesAbvyah2GMnA Yl3iN5oitp/65SZEqbTZFwSIBdfDReYmlUXU357lnIJtoFOBn74IoUpIDB4W1+xcQz2tDfqx IABXs141D5ABFBCXfyAPoSFo1HZXsKQpEyrvPnZOs8DV69esuMpJCfEqNtoDD9lr9TWCBTkZ DzkHUgWBJNO4TwbdjkluMrC9ioMuXqt+ICg/lh+n1ZBKUZiq8ZC0RpGV9KwANzxtGZxqJioJ RE8WC2d8bJz/P06FaLZqWbddflZZKcqpjd2IQEq/bosZntdks2UmiHpgLU4GSiiN8X0A4bUN HbLe3caPJO6iHetMcGdA55nndPoGXUMhFrGIvm+yJNI0iSwbVhGYrKcI/9i4PXSrsG2/XEeg SNdiRY2Rcmsay84ge21lULyFZpT2gp6dHKYron952ORokjKOAJL1jCAsP8hLBOImL8os9K19 7wxq2nusXZ1WWJC/ys7Tgi0PN6OYQZhSuzpkRU7EbfsgxL6MZlAS9agvwAjjoc0+5NoMNJhM cm5MuSxegSuOHXHJOXPtq4LZZjHvW6G2tcWV9AB6B/gcy0/GX7+vDJt4j8xxuziYYsLMqWPU TUpS4GOjghsFfpEujJ8NGZeUErK8kQYLNapQDQWFicXaU/9FABEBAAHCwWEEGAEKAA8FAlbd qi0CGwwFCQPCZwAACgkQOFt+q7umKo+J4A/fbPDfFUKziq9UdrvZfNvBXEBU0XnbQfTqBP66 r+VInjEAzrHaHaKAVoEkHy5fndZJiz+DsA9rwW6bdUal6jZGhaZmYEYFqJNIOCpywHKzOPNE AGCSGm79orJdv9+dPXXtSwkUplURwWafs6/5pdvSHIRG3zIXVjXkP3wFeMwYcwIbrTwRi9on 7uy4JJPYzhOjOWZmaw4APvmC0NPTrV9GnJJmFq3xu/KUcz5sWYUCzZZsAPgijvVqtaiFjNd/ WGmGUNmPiYyBn1FubM8rtE/4cMFnBJpHYhDCXY0Xy8/MGBmjfWbC+MXmaKImUzmh/t8Mogcb x4J94ySuNoHGNr/fyntorjqEEL3dZtH81NHFqESP/4CxzjPunbjDXs5E0Gp242VNZmw7LCzB K/6P+58bVR8J/BZllnblYF4LA1kuL3xX33Yd9dFLPRiWrIj5KGmhdL9D4v5QDWLB2+IslD4S FAu0mc3bCKXxyu334Jw87NMGEgND7gl3KR1jRrLRwft/Ic/KMT6cw+z181zAAwMNzAXMw6Ro 6VO24mOTz0loRq/+dzrxcefFlq8OwItnnKuEQLcjN+JxMNCfdB3LGnqGaK1kkg58HcAreygT D84QFskK58CxfrRbTnP7eG1rfQbkgNp91jwG3iD76Qq7Vzp++zQCrEdpXgZbkIEQQsLBYQQY AQoADwIbDAUCWqP54gUJBo45qAAKCRA4W36ru6Yqj+t0D+CntC+RAt/Q3ZRAYgc+xfXUI138 7DCTKoZ0Nes1a2jC/r1t9KPal+2Hr2KOT6emT85oTHiXvZZAHcdNi0MwMipYyhhcNgKrHyl2 HfBKJsIOSM5K0CDn20IxE3euDHdyICbSsRaRRrwlYXmFWdngwELRz/skdYgUarqYX11PGAqj ypLR4qV8BAJmZN/7nfxcH9Y4BFDu7ojQvmKm2QHM6ePFvSKJ2Gm/NzmYdNyIdMC7Vddd28Xn uE8FFPwCuXOmog+kxmEgWx3X8hao6Hh2jQQl3Oq55xUOpOJ6/YLQ3OtbHyb28aWqc5hLDc/B uUqMlj/aE0OV4SVnGSAp5qN9HYHr54qXoA7FTEG34nP4UWbBxyYconkLd6b0xAlvDslUF+/6 NchKlYSQPS31+dKaKZL8/LD8h2ufmqMzGaG0vbzQs24sVItMjbMLXr/nFSlPm+KDa4YsXp5p TeIEuLoEAPD36VmaqAkoZmqeVrYb2KkfMNJdtAlveK7iDvD8ktCRDcXgFYJGVq03YLkUZAZX 8elzBzj4Ydd1Ej9XfTDpsS+TGw850m+uRc1Gxh8A9d8ELJHw8soxQ+MSodo4ZLOItYVM2x2g MhvYabfHaYm2LxRhBtMqsbWi8ZYUextVrrNvju+C9vgO1FnEG0/OQP8x2xOJZ6a5asoU88HB bkUp Message-ID: <56b161bc-9b5e-63c9-b815-8b3ff8214887@buttersideup.com> Date: Mon, 27 Aug 2018 20:30:23 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20180827164535.GB22318@nazgul.tnic> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 27/08/18 17:45, Borislav Petkov wrote: > Actually, looking at this driver more - it has been depending on > BROKEN since 2007! Hi, I'd forgotten that it was in BROKEN state. The issue was that the driver was fully functioning, but it clashed with the graphics aperture driver - both use different registers within the same PCI device - it was marked broken on the basis that the with the kernel PCI device allocation code as it stood at the time, if the i82443bxgx_edac driver was loaded first, the graphics aperture configuration driver could not also be loaded, and this could break existing setups. As far as I remember, it was left was that Greg KH had said that he was working on a change to the PCI device allocation code which would allow both to coexist. I don't know if that happened. The last CPU which used these chipsets (130nm Pentium III) were released in 2001. I don't know when they were produced up until. On that basis, I don't see a problem with removing it, but if there's a preference for me to fix it, (and if I still have some old hardware somewhere that I can test it on), I'll be happy to do that instead. Tim.