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Mon, 27 Jan 2025 14:14:14 +0100 Message-ID: Date: Mon, 27 Jan 2025 14:14:13 +0100 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: [PATCH] serial: 8250_pci: Fix Warning at drivers/pci/devres.c:603 pcim_add_mapping_to_legacy_table To: Helge Deller , linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org, Greg Kroah-Hartman , Jiri Slaby , Bjorn Helgaas , linux-pci@vger.kernel.org References: Content-Language: en-US From: Helge Deller Autocrypt: addr=deller@gmx.de; keydata= xsFNBF3Ia3MBEAD3nmWzMgQByYAWnb9cNqspnkb2GLVKzhoH2QD4eRpyDLA/3smlClbeKkWT HLnjgkbPFDmcmCz5V0Wv1mKYRClAHPCIBIJgyICqqUZo2qGmKstUx3pFAiztlXBANpRECgwJ r+8w6mkccOM9GhoPU0vMaD/UVJcJQzvrxVHO8EHS36aUkjKd6cOpdVbCt3qx8cEhCmaFEO6u CL+k5AZQoABbFQEBocZE1/lSYzaHkcHrjn4cQjc3CffXnUVYwlo8EYOtAHgMDC39s9a7S90L 69l6G73lYBD/Br5lnDPlG6dKfGFZZpQ1h8/x+Qz366Ojfq9MuuRJg7ZQpe6foiOtqwKym/zV dVvSdOOc5sHSpfwu5+BVAAyBd6hw4NddlAQUjHSRs3zJ9OfrEx2d3mIfXZ7+pMhZ7qX0Axlq Lq+B5cfLpzkPAgKn11tfXFxP+hcPHIts0bnDz4EEp+HraW+oRCH2m57Y9zhcJTOJaLw4YpTY GRUlF076vZ2Hz/xMEvIJddRGId7UXZgH9a32NDf+BUjWEZvFt1wFSW1r7zb7oGCwZMy2LI/G aHQv/N0NeFMd28z+deyxd0k1CGefHJuJcOJDVtcE1rGQ43aDhWSpXvXKDj42vFD2We6uIo9D 1VNre2+uAxFzqqf026H6cH8hin9Vnx7p3uq3Dka/Y/qmRFnKVQARAQABzRxIZWxnZSBEZWxs ZXIgPGRlbGxlckBnbXguZGU+wsGRBBMBCAA7AhsDBQsJCAcCBhUKCQgLAgQWAgMBAh4BAheA FiEERUSCKCzZENvvPSX4Pl89BKeiRgMFAl3J1zsCGQEACgkQPl89BKeiRgNK7xAAg6kJTPje uBm9PJTUxXaoaLJFXbYdSPfXhqX/BI9Xi2VzhwC2nSmizdFbeobQBTtRIz5LPhjk95t11q0s uP5htzNISPpwxiYZGKrNnXfcPlziI2bUtlz4ke34cLK6MIl1kbS0/kJBxhiXyvyTWk2JmkMi REjR84lCMAoJd1OM9XGFOg94BT5aLlEKFcld9qj7B4UFpma8RbRUpUWdo0omAEgrnhaKJwV8 qt0ULaF/kyP5qbI8iA2PAvIjq73dA4LNKdMFPG7Rw8yITQ1Vi0DlDgDT2RLvKxEQC0o3C6O4 iQq7qamsThLK0JSDRdLDnq6Phv+Yahd7sDMYuk3gIdoyczRkXzncWAYq7XTWl7nZYBVXG1D8 gkdclsnHzEKpTQIzn/rGyZshsjL4pxVUIpw/vdfx8oNRLKj7iduf11g2kFP71e9v2PP94ik3 Xi9oszP+fP770J0B8QM8w745BrcQm41SsILjArK+5mMHrYhM4ZFN7aipK3UXDNs3vjN+t0zi qErzlrxXtsX4J6nqjs/mF9frVkpv7OTAzj7pjFHv0Bu8pRm4AyW6Y5/H6jOup6nkJdP/AFDu 5ImdlA0jhr3iLk9s9WnjBUHyMYu+HD7qR3yhX6uWxg2oB2FWVMRLXbPEt2hRGq09rVQS7DBy dbZgPwou7pD8MTfQhGmDJFKm2jvOwU0EXchrcwEQAOsDQjdtPeaRt8EP2pc8tG+g9eiiX9Sh rX87SLSeKF6uHpEJ3VbhafIU6A7hy7RcIJnQz0hEUdXjH774B8YD3JKnAtfAyuIU2/rOGa/v UN4BY6U6TVIOv9piVQByBthGQh4YHhePSKtPzK9Pv/6rd8H3IWnJK/dXiUDQllkedrENXrZp eLUjhyp94ooo9XqRl44YqlsrSUh+BzW7wqwfmu26UjmAzIZYVCPCq5IjD96QrhLf6naY6En3 ++tqCAWPkqKvWfRdXPOz4GK08uhcBp3jZHTVkcbo5qahVpv8Y8mzOvSIAxnIjb+cklVxjyY9 dVlrhfKiK5L+zA2fWUreVBqLs1SjfHm5OGuQ2qqzVcMYJGH/uisJn22VXB1c48yYyGv2HUN5 lC1JHQUV9734I5cczA2Gfo27nTHy3zANj4hy+s/q1adzvn7hMokU7OehwKrNXafFfwWVK3OG 1dSjWtgIv5KJi1XZk5TV6JlPZSqj4D8pUwIx3KSp0cD7xTEZATRfc47Yc+cyKcXG034tNEAc xZNTR1kMi9njdxc1wzM9T6pspTtA0vuD3ee94Dg+nDrH1As24uwfFLguiILPzpl0kLaPYYgB wumlL2nGcB6RVRRFMiAS5uOTEk+sJ/tRiQwO3K8vmaECaNJRfJC7weH+jww1Dzo0f1TP6rUa fTBRABEBAAHCwXYEGAEIACAWIQRFRIIoLNkQ2+89Jfg+Xz0Ep6JGAwUCXchrcwIbDAAKCRA+ Xz0Ep6JGAxtdEAC54NQMBwjUNqBNCMsh6WrwQwbg9tkJw718QHPw43gKFSxFIYzdBzD/YMPH l+2fFiefvmI4uNDjlyCITGSM+T6b8cA7YAKvZhzJyJSS7pRzsIKGjhk7zADL1+PJei9p9idy RbmFKo0dAL+ac0t/EZULHGPuIiavWLgwYLVoUEBwz86ZtEtVmDmEsj8ryWw75ZIarNDhV74s BdM2ffUJk3+vWe25BPcJiaZkTuFt+xt2CdbvpZv3IPrEkp9GAKof2hHdFCRKMtgxBo8Kao6p Ws/Vv68FusAi94ySuZT3fp1xGWWf5+1jX4ylC//w0Rj85QihTpA2MylORUNFvH0MRJx4mlFk XN6G+5jIIJhG46LUucQ28+VyEDNcGL3tarnkw8ngEhAbnvMJ2RTx8vGh7PssKaGzAUmNNZiG MB4mPKqvDZ02j1wp7vthQcOEg08z1+XHXb8ZZKST7yTVa5P89JymGE8CBGdQaAXnqYK3/yWf FwRDcGV6nxanxZGKEkSHHOm8jHwvQWvPP73pvuPBEPtKGLzbgd7OOcGZWtq2hNC6cRtsRdDx 4TAGMCz4j238m+2mdbdhRh3iBnWT5yPFfnv/2IjFAk+sdix1Mrr+LIDF++kiekeq0yUpDdc4 ExBy2xf6dd+tuFFBp3/VDN4U0UfG4QJ2fg19zE5Z8dS4jGIbLg== In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:lnSO8pSUdMVnTAY0kfCd5K6iJDFJ++d2teB+reRh5NxKc2af6Az 199U1lFjNMZdifbN38PacPrtdxCHSLgDu60DPfps3+QuBBJIaKT1C6T5ZChaU8HeTbx3N3y W5dMkbHUH6l0aib6jeKCqtjIQwO+kaRl2Uziq1YzgsuMYWfzSPoU1xvZ8VNsU+sp335+4z0 Sa/CMNn+uNmQMSHbzzatw== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:bl1TqB5wbgk=;71abVPOCIxY0W3+YoKwsmn30WuP e88oVejAwzi1sq25RK72jqLKbjOGst9IhIj17FX3LNA/1upVsfU2Ly22hLr59grhyyH2wsT5o udu9Qc/fS1m7CYk33NfT6sKYp3RbmVVvDNyqxWrYkiPnLN6kkXELulH7IgrZ25VjMjWKg6J7w 7E1z343Z+jRL7G/0f0f/ouzlYS+p304LdZ2jVyGgbF4Gr4yUMwGZG6r4IbTDiuNV5QKbvMTTF 4uzB7j7MlmO7lN4Pv30XWOgg0JxUEBmOYm4Y9wV76TwIMh1Cm1Beb5Zezz4LcUoYZfnt/GYHV iQLvf4OT+G9Refai7OQok5LzKUzAA5DphlkDkrGtJam0L6QYQX3Hkp0CGH5nCxorRjVl8DqmX 3f57js9L9Q4GBHKTWaq6qUM+U/mCk/qisfO095dkNAIxCASb8vZQkMDFiS8bgxKJ913QpWlHr +HrNb7LhpKEfmMnPg3RqQ9oqc2Tiyu8MEY3gurMCtUbF3P2z/gTIdAiTzGpPZoOgLPKu0gbRc 4URonA3IbbwFZ03OZUBS0tcOczLGLksi6PBueW5VPn1PHwBCd6wJGWKnIfYQrA+V6D9CeY0bM pI/dSniCCRJOrX49dog/xUk7yoiz2LtD9UwW87aSKrI5EDq1Uxx1MNynlMr6Dsf369+0XHJf/ pq8ZNrHOcU91rm/k/OTCn3sn2lOcaOPn5gNDfeLK1nnnaiok1IaAUavQzrp7NfjqCVmDbsKvH Ksp+SDaXTTRO+kGTveH7Myn5lK7tzVRAx6ityiFb9SAAOZ1aVApRLDQixHnKnJkgEmQxPYaDw U6n66AqDaHLe6j9zrSz1f57Xun3cMMBOQz6BrUYmhIE9qRefkURjAVSGwwBq2CNWP3vk7vgBE A5WmeqkJaDb1xqXy8NeVot7F/X5L3+DPuR4h0ufjK4eCmTDkloiEBKsEjvc0yVdH59fivVcAx GvA6IKJqMJALJqqg1jna5pENt7ukZ8ZR6QfP4Q4DEq6aiwQrOBxz14I4C72xsrG/Ek0slmEKY I3+2N8pDSDcrgpKCF44J8uWuaNJfwF6dpZ63DY5BNaLN6S42GICbdVaWPzVOcXw3YgLLU9vn/ ASclYpAy0Jbv+6orMYdNDilzefB36JMLpG7W+0CjSsQ42Uq9orl4rQMffI1HRA4e6GFmpmRoj sUCMVjQUQafl+jxHAPbRQnDQxqhmOU9WBymc0aMEb15UW0CASvjT3tCqnfqYbtc4myuzTssiN 0addkxz2X0elOIAAZ1BEeVdraZgXAVC4GCVl9IIqKJm4MZW7+GBvW+OkaUqAvG6kH9moucx+8 aqMjhpzXdSv5DjfN7nXNkuVPg== On 1/26/25 08:37, Helge Deller wrote: > Some PA-RISC servers have BMC management cards (Diva) with up to 5 seria= l > UARTS per memory PCI bar. This triggers since at least kernel 6.12 for e= ach of > the UARTS (beside the first one) the following warning in devres.c: ... > > I see three options to avoid this warning: > a) drop the WARNING() from devrec.c, > b) modify pcim_iomap() to return an existing mapping if it exists > instead of creating a new mapping, or > c) change serial8250_pci_setup_port() to only create a new mapping > if none exists yet. > > This patch implements option c). Please ignore this patch as it behaves wrong. I'll send an updated patch. Helge