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Samuel WuandAlexei Starovoitov
9ef6471142
Introduce a set of BPF selftests to verify the safety and functionality of wakeup_source kfuncs. The suite includes: 1. A functional test (test_wakeup_source.c) that iterates over the global wakeup_sources list. It uses CO-RE to read timing statistics and validates them in user-space via the BPF ring buffer. 2. A negative test suite (wakeup_source_fail.c) ensuring the BPF verifier correctly enforces reference tracking and type safety. 3. Enable CONFIG_PM_WAKELOCKS in the test config, allowing creation of wakeup sources via /sys/power/wake_lock. A shared header (wakeup_source.h) is introduced to ensure consistent memory layout for the Ring Buffer data between BPF and user-space. Signed-off-by: Samuel Wu <wusamuel@google.com> Link: https://lore.kernel.org/r/20260511174559.659782-3-wusamuel@google.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
23 lines
499 B
C
23 lines
499 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright 2026 Google LLC */
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#ifndef __WAKEUP_SOURCE_H__
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#define __WAKEUP_SOURCE_H__
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#define WAKEUP_NAME_LEN 128
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struct wakeup_event_t {
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unsigned long active_count;
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long long active_time_ns;
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unsigned long event_count;
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unsigned long expire_count;
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long long last_time_ns;
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long long max_time_ns;
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long long prevent_sleep_time_ns;
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long long total_time_ns;
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unsigned long wakeup_count;
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char name[WAKEUP_NAME_LEN];
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};
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#endif /* __WAKEUP_SOURCE_H__ */
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