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Miller" , Andreas Larsson , Bradley Morgan Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, Mete Durlu X-Mailer: b4 0.14.3 X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzMwMDA2OCBTYWx0ZWRfX/ca38MtHx5sO banMTURY8j5WYb2sSQE4ZmzhoaI5hzu6vyKf0tgVxX4ljj19lsFZC/kBu/IXLPUlmJWq4jEZKOT UcdSvVCuagPFgoGoSsTPihrHrLmyffQ= X-Proofpoint-GUID: aPWvPhBUfX_9bL95DEGj25wMmqVkRLpP X-Proofpoint-ORIG-GUID: aPWvPhBUfX_9bL95DEGj25wMmqVkRLpP X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzMwMDA2OCBTYWx0ZWRfX1l9LXFaq7L9R JW+Q3fOkwnumLU8TjEMd3LBJ/RxYn+hDZ8/A01+VLRJm4xnwibVs+4OYYh9EyWN24TmVK2MMQbr 7TfGrvPXlhIbHcjNXq0Ffa0I42iw23GCuD4gQxAkylRR3/RQjVJCYisfP0tDGgFNamqlhECnqtl JN71VoDwAAnYXRIeIUkPZu/XoP5++NRoVSOZHsYosTq5CiBXExiorwEMU5sX4wTDHw5nGLaAVxQ se3frkyeDeVbislAZqzQhutzdlMTUbzJTTXKB8d9nhrNIzGlZ626ySTBaE774QIfwMGuMeCtPLu J+I7L8NcH8GuBTNFdXkxQm3AiWmXQ7bj3NpckVef9sLWlzIec2f312mspw+Tqv/wPsS5hvwdpeu Eyo+7/cvDWfpHcQ5vS3Sdd+qQf4HZOZmOv0ycGmpVygTKz69cDaGf8OjOLuqPcx0nQU+pN4lQY1 TmhTTaVdONrWLSBlyVQ== X-Authority-Analysis: v=2.4 cv=X5Vi7mTe c=1 sm=1 tr=0 ts=6a6b181e cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VnNF1IyMAAAA:8 a=vDqFKWyYXM9dIk6-_9sA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-30_02,2026-07-29_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 phishscore=0 priorityscore=1501 malwarescore=0 spamscore=0 suspectscore=0 bulkscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607300068 Introduce a hook for architectures to put their specific panic handlers. s390 and sparc already has ifdef preprocessor checks to execute architecture specific code. Pave the way for vpanic() cleanup. Suggested-by: Sven Schnelle Signed-off-by: Mete Durlu --- include/linux/panic.h | 2 ++ kernel/panic.c | 3 +++ 2 files changed, 5 insertions(+) diff --git a/include/linux/panic.h b/include/linux/panic.h index f1dd417e54b2..98dd7dfd27de 100644 --- a/include/linux/panic.h +++ b/include/linux/panic.h @@ -110,4 +110,6 @@ extern void add_taint(unsigned flag, enum lockdep_ok); extern int test_taint(unsigned flag); extern unsigned long get_taint(void); +void arch_do_panic(void); + #endif /* _LINUX_PANIC_H */ diff --git a/kernel/panic.c b/kernel/panic.c index 213725b612aa..726a97842232 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -567,6 +567,8 @@ static void panic_other_cpus_shutdown(bool crash_kexec) crash_smp_send_stop(); } +void __weak arch_do_panic(void) {} + /** * vpanic - halt the system * @fmt: The text string to print @@ -756,6 +758,7 @@ void vpanic(const char *fmt, va_list args) #endif pr_emerg("---[ end Kernel panic - not syncing: %s ]---\n", buf); + arch_do_panic(); /* Do not scroll important messages printed above */ suppress_printk = 1; -- 2.53.0