From d22c3e0088e85be8131f7a9283f759cdbb20726d Mon Sep 17 00:00:00 2001 From: Sven Schnelle Date: Wed, 9 Sep 2026 11:29:53 +0200 Subject: selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tc The current regex also matches symbols in modules, which makes the test fail on s390 where name_show is present only once in the kernel, but also multiple times in modules: 000001b1401cdc20 t name_show 000001b0c05e6c40 t name_show [mdev] 000001b0c0495f30 t name_show [i2c_core] Fix this by changing the regular expression to only match the function name. Link: https://lore.kernel.org/all/20260909092954.2200558-1-svens@linux.ibm.com/ Fixes: 03b80ff8023a ("selftests/ftrace: Add new test case which checks non unique symbol") Signed-off-by: Sven Schnelle Reviewed-by: Steven Rostedt Signed-off-by: Masami Hiramatsu (Google) --- drivers/md/dm-vdo/thread-device.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 drivers/md/dm-vdo/thread-device.c (limited to 'drivers/md/dm-vdo/thread-device.c') diff --git a/drivers/md/dm-vdo/thread-device.c b/drivers/md/dm-vdo/thread-device.c new file mode 100644 index 000000000..df13ca914 --- /dev/null +++ b/drivers/md/dm-vdo/thread-device.c @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright 2023 Red Hat + */ + +#include "thread-device.h" + +/* A registry of threads associated with device id numbers. */ +static struct thread_registry device_id_thread_registry; + +/* Any registered thread must be unregistered. */ +void vdo_register_thread_device_id(struct registered_thread *new_thread, + unsigned int *id_ptr) +{ + vdo_register_thread(&device_id_thread_registry, new_thread, id_ptr); +} + +void vdo_unregister_thread_device_id(void) +{ + vdo_unregister_thread(&device_id_thread_registry); +} + +int vdo_get_thread_device_id(void) +{ + const unsigned int *pointer; + + pointer = vdo_lookup_thread(&device_id_thread_registry); + return (pointer != NULL) ? *pointer : -1; +} + +void vdo_initialize_thread_device_registry(void) +{ + vdo_initialize_thread_registry(&device_id_thread_registry); +} -- cgit v1.3.1