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Mon, 12 Oct 2026 12:11:36 +0000 (GMT) Received: from [0.0.0.0] (unknown [9.87.157.242]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 12 Oct 2026 12:11:36 +0000 (GMT) Message-ID: Date: Mon, 12 Oct 2026 14:11:36 +0200 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 02/32] s390/early: Fix early warning handling To: Heiko Carstens , Alexander Gordeev , Sven Schnelle , Vasily Gorbik , Christian Borntraeger , Niklas Schnelle , Matthew Rosato , Gerald Schaefer , Vineeth Vijayan , Peter Oberparleiter , Harald Freudenberger , Holger Dengler , Stefan Haberland , Jan Hoeppner , Janosch Frank , Claudio Imbrenda Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org References: <20261001103247.1989111-1-hca@linux.ibm.com> <20261001103247.1989111-3-hca@linux.ibm.com> Content-Language: en-US From: Ilya Leoshkevich In-Reply-To: <20261001103247.1989111-3-hca@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDEyMDA0NiBTYWx0ZWRfX+ghTqVG2KeCb T537ZD6xs6+FGB4k+MeelozTobDjXVDJRvDYeFryAcU/2Yt6s5uss8hl+qxCAARFaNgw42GV+E+ VOHoMQXa0WrK6uWttgoJVECGeqe1oHY= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDEyMDA0NiBTYWx0ZWRfXyQNfYapD5R3a QnOuvp8HrwB3bAT/+hW6piSDz2Ns1lSbuMwF4PSWfO4d8W4dmVgLYD7YL7nYcX7tsn7MNMxpFI2 6zozchUs8mTtBLu54yA8AAigktnzv192m2PjU171pC9qlYhrfnB7QvGSsg6B9xyLbl5pEHc0CGA XHf7KdfJELPPrhVSt9mNTBuzzgn/4KBnd/jKkY2cz3P9MrbSyB+u95IW17Y7x7jCG/DO2RONtTr ed3IsIJZXSH2Q7ca0a1YkSszkRXTjxCtxy53XN+VZQeh8XKb309p4K+Xt5qvNhRycFeX7XzjveM WwowOep/9icj6Iz7t5YFfhK0bR07RSy26BxdXQp1K4/HGORAr8p9bBSLmy5P+YG1uv90z/j2Dbt /gr1EGkVQTQKTvrR7+XdG1avsQoThy43T0YjnpNiQ2IxbCTK66viM8Evw2CjVVa/kFCOipoT+q7 a4wmkZ1K+lOuDZL1UoA== X-Authority-Analysis: v=2.4 cv=E6pYNqdl c=1 sm=1 tr=0 ts=6accce7d cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=VnNF1IyMAAAA:8 a=yfuuVOs28KkWNWq-VKEA:9 a=QEXdDO2ut3YA:10 a=zgiPjhLxNE0A:10 X-Proofpoint-ORIG-GUID: f0NFArJoTHhxFl2PxoqcKVsIBL1zrRf5 X-Proofpoint-GUID: f0NFArJoTHhxFl2PxoqcKVsIBL1zrRf5 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-12_03,2026-10-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 phishscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 spamscore=0 adultscore=0 suspectscore=0 malwarescore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610120046 On 10/1/26 12:32, Heiko Carstens wrote: > When adding support for __WARN_printf() the early program check handler was > not taken into account. Add the missing support to the early program check > handler. This avoids that the kernel crashes instead of printing a warning. > > Fixes: 04dabb4261c3 ("s390/bug: Implement __WARN_printf()") > Fixes: 79996065cfa2 ("s390/bug: Skip __WARN_trap() in call traces") > Signed-off-by: Heiko Carstens > --- > arch/s390/kernel/early.c | 15 ++++++++++++--- > 1 file changed, 12 insertions(+), 3 deletions(-) Reviewed-by: Ilya Leoshkevich