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([2600:1700:e321:62f0:da43:aeff:fecc:bfd5]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2156996d276sm9042845ad.238.2024.11.30.09.07.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 30 Nov 2024 09:07:42 -0800 (PST) Sender: Guenter Roeck Message-ID: <7d7e65af-b818-45de-a92c-ee59a864dbdb@roeck-us.net> Date: Sat, 30 Nov 2024 09:07:39 -0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [GIT PULL] Staging driver changes for 6.13-rc1 To: Greg KH Cc: Linus Torvalds , Andrew Morton , Stephen Rothwell , linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev, Dave Penkler References: <2024113025-sly-footer-3462@gregkh> Content-Language: en-US From: Guenter Roeck Autocrypt: addr=linux@roeck-us.net; keydata= xsFNBE6H1WcBEACu6jIcw5kZ5dGeJ7E7B2uweQR/4FGxH10/H1O1+ApmcQ9i87XdZQiB9cpN RYHA7RCEK2dh6dDccykQk3bC90xXMPg+O3R+C/SkwcnUak1UZaeK/SwQbq/t0tkMzYDRxfJ7 nyFiKxUehbNF3r9qlJgPqONwX5vJy4/GvDHdddSCxV41P/ejsZ8PykxyJs98UWhF54tGRWFl 7i1xvaDB9lN5WTLRKSO7wICuLiSz5WZHXMkyF4d+/O5ll7yz/o/JxK5vO/sduYDIlFTvBZDh gzaEtNf5tQjsjG4io8E0Yq0ViobLkS2RTNZT8ICq/Jmvl0SpbHRvYwa2DhNsK0YjHFQBB0FX IdhdUEzNefcNcYvqigJpdICoP2e4yJSyflHFO4dr0OrdnGLe1Zi/8Xo/2+M1dSSEt196rXaC kwu2KgIgmkRBb3cp2vIBBIIowU8W3qC1+w+RdMUrZxKGWJ3juwcgveJlzMpMZNyM1jobSXZ0 VHGMNJ3MwXlrEFPXaYJgibcg6brM6wGfX/LBvc/haWw4yO24lT5eitm4UBdIy9pKkKmHHh7s jfZJkB5fWKVdoCv/omy6UyH6ykLOPFugl+hVL2Prf8xrXuZe1CMS7ID9Lc8FaL1ROIN/W8Vk BIsJMaWOhks//7d92Uf3EArDlDShwR2+D+AMon8NULuLBHiEUQARAQABzTJHdWVudGVyIFJv ZWNrIChMaW51eCBhY2NvdW50KSA8bGludXhAcm9lY2stdXMubmV0PsLBgQQTAQIAKwIbAwYL CQgHAwIGFQgCCQoLBBYCAwECHgECF4ACGQEFAlVcphcFCRmg06EACgkQyx8mb86fmYFg0RAA nzXJzuPkLJaOmSIzPAqqnutACchT/meCOgMEpS5oLf6xn5ySZkl23OxuhpMZTVX+49c9pvBx hpvl5bCWFu5qC1jC2eWRYU+aZZE4sxMaAGeWenQJsiG9lP8wkfCJP3ockNu0ZXXAXwIbY1O1 c+l11zQkZw89zNgWgKobKzrDMBFOYtAh0pAInZ9TSn7oA4Ctejouo5wUugmk8MrDtUVXmEA9 7f9fgKYSwl/H7dfKKsS1bDOpyJlqhEAH94BHJdK/b1tzwJCFAXFhMlmlbYEk8kWjcxQgDWMu GAthQzSuAyhqyZwFcOlMCNbAcTSQawSo3B9yM9mHJne5RrAbVz4TWLnEaX8gA5xK3uCNCeyI sqYuzA4OzcMwnnTASvzsGZoYHTFP3DQwf2nzxD6yBGCfwNGIYfS0i8YN8XcBgEcDFMWpOQhT Pu3HeztMnF3HXrc0t7e5rDW9zCh3k2PA6D2NV4fews9KDFhLlTfCVzf0PS1dRVVWM+4jVl6l HRIAgWp+2/f8dx5vPc4Ycp4IsZN0l1h9uT7qm1KTwz+sSl1zOqKD/BpfGNZfLRRxrXthvvY8 BltcuZ4+PGFTcRkMytUbMDFMF9Cjd2W9dXD35PEtvj8wnEyzIos8bbgtLrGTv/SYhmPpahJA l8hPhYvmAvpOmusUUyB30StsHIU2LLccUPPOwU0ETofVZwEQALlLbQeBDTDbwQYrj0gbx3bq 7kpKABxN2MqeuqGr02DpS9883d/t7ontxasXoEz2GTioevvRmllJlPQERVxM8gQoNg22twF7 pB/zsrIjxkE9heE4wYfN1AyzT+AxgYN6f8hVQ7Nrc9XgZZe+8IkuW/Nf64KzNJXnSH4u6nJM J2+Dt274YoFcXR1nG76Q259mKwzbCukKbd6piL+VsT/qBrLhZe9Ivbjq5WMdkQKnP7gYKCAi pNVJC4enWfivZsYupMd9qn7Uv/oCZDYoBTdMSBUblaLMwlcjnPpOYK5rfHvC4opxl+P/Vzyz 6WC2TLkPtKvYvXmdsI6rnEI4Uucg0Au/Ulg7aqqKhzGPIbVaL+U0Wk82nz6hz+WP2ggTrY1w ZlPlRt8WM9w6WfLf2j+PuGklj37m+KvaOEfLsF1v464dSpy1tQVHhhp8LFTxh/6RWkRIR2uF I4v3Xu/k5D0LhaZHpQ4C+xKsQxpTGuYh2tnRaRL14YMW1dlI3HfeB2gj7Yc8XdHh9vkpPyuT nY/ZsFbnvBtiw7GchKKri2gDhRb2QNNDyBnQn5mRFw7CyuFclAksOdV/sdpQnYlYcRQWOUGY HhQ5eqTRZjm9z+qQe/T0HQpmiPTqQcIaG/edgKVTUjITfA7AJMKLQHgp04Vylb+G6jocnQQX JqvvP09whbqrABEBAAHCwWUEGAECAA8CGwwFAlVcpi8FCRmg08MACgkQyx8mb86fmYHNRQ/+ J0OZsBYP4leJvQF8lx9zif+v4ZY/6C9tTcUv/KNAE5leyrD4IKbnV4PnbrVhjq861it/zRQW cFpWQszZyWRwNPWUUz7ejmm9lAwPbr8xWT4qMSA43VKQ7ZCeTQJ4TC8kjqtcbw41SjkjrcTG wF52zFO4bOWyovVAPncvV9eGA/vtnd3xEZXQiSt91kBSqK28yjxAqK/c3G6i7IX2rg6pzgqh hiH3/1qM2M/LSuqAv0Rwrt/k+pZXE+B4Ud42hwmMr0TfhNxG+X7YKvjKC+SjPjqp0CaztQ0H nsDLSLElVROxCd9m8CAUuHplgmR3seYCOrT4jriMFBtKNPtj2EE4DNV4s7k0Zy+6iRQ8G8ng QjsSqYJx8iAR8JRB7Gm2rQOMv8lSRdjva++GT0VLXtHULdlzg8VjDnFZ3lfz5PWEOeIMk7Rj trjv82EZtrhLuLjHRCaG50OOm0hwPSk1J64R8O3HjSLdertmw7eyAYOo4RuWJguYMg5DRnBk WkRwrSuCn7UG+qVWZeKEsFKFOkynOs3pVbcbq1pxbhk3TRWCGRU5JolI4ohy/7JV1TVbjiDI HP/aVnm6NC8of26P40Pg8EdAhajZnHHjA7FrJXsy3cyIGqvg9os4rNkUWmrCfLLsZDHD8FnU mDW4+i+XlNFUPUYMrIKi9joBhu18ssf5i5Q= In-Reply-To: <2024113025-sly-footer-3462@gregkh> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 11/30/24 08:15, Greg KH wrote: > On Sat, Nov 30, 2024 at 08:10:55AM -0800, Guenter Roeck wrote: >> Hi, >> >> On Fri, Nov 29, 2024 at 05:27:53AM +0100, Greg KH wrote: >>> The following changes since commit 8cf0b93919e13d1e8d4466eb4080a4c4d9d66d7b: >>> >>> Linux 6.12-rc2 (2024-10-06 15:32:27 -0700) >>> >>> are available in the Git repository at: >>> >>> git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git tags/staging-6.13-rc1 >>> >>> for you to fetch changes up to 114eae3c9fde35220cca623840817a740a2eb7b3: >>> >>> Staging: gpib: gpib_os.c - Remove unnecessary OOM message (2024-11-10 08:04:18 +0100) >>> >>> ---------------------------------------------------------------- >> [ ...] >> >>> Dave Penkler (33): >>> staging: gpib: Add common include files for GPIB drivers >>> staging: gpib: Add user api include files >>> staging: gpib: Add GPIB common core driver >>> staging: gpib: Add tms9914 GPIB chip driver >>> staging: gpib: Add nec7210 GPIB chip driver >>> staging: gpib: Add HP/Agilent/Keysight 8235xx PCI GPIB driver >>> staging: gpib: Add Agilent/Keysight 82357x USB GPIB driver >>> staging: gpib: Add Computer Boards GPIB driver >> >> I seem to be unable to find the patch introducing the problem (the link >> provided with the patch is invalid), so I report it here. >> >> With i386 allmodconfig builds: >> >> Building i386:allyesconfig ... failed >> -------------- >> Error log: >> drivers/staging/gpib/cec/cec_gpib.c: In function 'cec_pci_attach': >> drivers/staging/gpib/cec/cec_gpib.c:300:28: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] >> 300 | nec_priv->iobase = (void *)(pci_resource_start(cec_priv->pci_device, 3)); >> | ^ >> drivers/staging/gpib/ines/ines_gpib.c: In function 'ines_common_pci_attach': >> drivers/staging/gpib/ines/ines_gpib.c:783:28: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] >> 783 | nec_priv->iobase = (void *)(pci_resource_start(ines_priv->pci_device, >> | ^ >> >> pci_resource_start() returns resource_size_t, which is not a pointer, and thus >> can not be cast to one. > > This is odd, why hasn't 0-day or any other build testing found this? Good question. Another good question is why I see this only with i386 builds, but not with other 32-bit builds. It should be easy to reproduce, though. make ARCH=i386 allmodconfig make ARCH-i386 drivers/staging/gpib/cec/cec_gpib.o does it for me, independent of gcc version (I tried 11.4 and 13.3). I don't see it with clang. Having said this, using the return value from pci_resource_start() directly as pointer is quite unusual. Typically drivers use ioremap(), request_region(), pci_iomap(), or a similar function on it to get a pointer. Guenter