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Thu, 7 Aug 2025 11:49:30 GMT Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B21A75805E; Thu, 7 Aug 2025 11:49:29 +0000 (GMT) Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EF16858055; Thu, 7 Aug 2025 11:49:26 +0000 (GMT) Received: from [9.152.212.100] (unknown [9.152.212.100]) by smtpav06.dal12v.mail.ibm.com (Postfix) with ESMTP; Thu, 7 Aug 2025 11:49:26 +0000 (GMT) Message-ID: <9e27675effcee26fce059a7e81ea4ba0fecfa86d.camel@linux.ibm.com> Subject: Re: [PATCH v4 2/3] powerpc/eeh: Use result of error_detected() in uevent From: Niklas Schnelle To: Lukas Wunner Cc: Bjorn Helgaas , Mahesh J Salgaonkar , Linas Vepstas , Ilpo =?ISO-8859-1?Q?J=E4rvinen?= , Manivannan Sadhasivam , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Peter Oberparleiter , Matthew Rosato , "Oliver O'Halloran" , Sinan Kaya , linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Keith Busch Date: Thu, 07 Aug 2025 13:49:26 +0200 In-Reply-To: References: <20250807-add_err_uevents-v4-0-c624bfd8638d@linux.ibm.com> <20250807-add_err_uevents-v4-2-c624bfd8638d@linux.ibm.com> Autocrypt: addr=schnelle@linux.ibm.com; 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charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2 (3.56.2-1.fc42) Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODA3MDA5MCBTYWx0ZWRfX9Pye0DKyMrAL b7tNmwL/8ush2E2mCttj/E4tERwjnctVAyPcZKV62Jy43G7ej/Ea89yCGWqLDpCLQ4tDRNDptPX 44xWlZ4we3aUVV5sUWLHPxBmoa4qGKi5DRWg+wLU4545QFltBf2Fu/sXL2wApFssxowqT97C6o6 lKbS/5o27I6VwYjrrwcHWg7r1foYSnC/0XcpFr1vpm71QY1rtJdU51RzpweRdCirc2VQRCAMQP9 iEcLTK9CDRjZIARx34rttrZV8Duyn+JWSJjoG2kE4fu2cKfFgctlRAa5naso7RkSVkMsnAgyF92 7BBqqnneLZjrNoKscWgwi6pCySBZ/KQcr9cflJ6Wv/TQKKx4PIqxVkS9xlifhy7LmGEEO4o3PG1 OrCocExyjo8vl+1PdVx4dKr252e85V+tFDAJo6h/nGRNXLm+s+97BDZnGiY4OgdLudSn5iuP X-Proofpoint-ORIG-GUID: IDnsoJ2r8JayJPGOrGhM0d7NiaaXetfZ X-Authority-Analysis: v=2.4 cv=LreSymdc c=1 sm=1 tr=0 ts=689492cc cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=IkcTkHD0fZMA:10 a=2OwXVqhp2XgA:10 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=y5LWfs1rpAMjDq6n04wA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: MRF2tTobtj6c6Dbk-XeirXgADp0PnXUS X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-08-07_02,2025-08-06_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 clxscore=1015 lowpriorityscore=0 phishscore=0 spamscore=0 priorityscore=1501 impostorscore=0 adultscore=0 mlxlogscore=999 bulkscore=0 malwarescore=0 mlxscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508070090 On Thu, 2025-08-07 at 13:34 +0200, Lukas Wunner wrote: > On Thu, Aug 07, 2025 at 12:15:32PM +0200, Niklas Schnelle wrote: > > With pci_uevent_ers() handling PCI_ERS_RESULT_NEED_RESET the result of > > error_detected() can be used in pci_uevent_ers() even if drivers reques= t > > a reset. This aligns EEH's behavior with both AER. >=20 > I guess the sentence is supposed to end with "and s390"? Yes had it there and then realized that this is only true after the last patch, did a bad job of adjusting. >=20 > I would have recounted the history a bit, e.g.: >=20 > Ever since uevent support was added for AER and EEH with commit > 856e1eb9bdd4 ("PCI/AER: Add uevents in AER and EEH error/resume"), it > reported PCI_ERS_RESULT_NONE as the result of ->error_detected() to > user space. >=20 > Commit 7b42d97e99d3 ("PCI/ERR: Always report current recovery status for > udev") subsequently amended AER to report the actual return value of > ->error_detected(). >=20 > Make the same change to EEH to align it with AER (and s390 error > recovery). Thanks for figuring out the history, I'll incorporate this and send a v5. >=20 > > Suggested-by: Lukas Wunner > > Link: https://lore.kernel.org/linux-pci/aIp6LiKJor9KLVpv@wunner.de/ > > Signed-off-by: Niklas Schnelle >=20 > Reviewed-by: Lukas Wunner Thanks for the R-b.