diff options
| author | Kiryl Shutsemau (Meta) <kas@kernel.org> | 2026-06-29 16:07:15 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2026-08-02 09:21:05 +0000 |
| commit | 5686f2bed02d98d03e3f38f4b5569804510fba31 (patch) | |
| tree | f51469d41d58257ce86dc9b4dd85f605185b6dc3 /include/linux | |
| parent | a13c140cc289c0b7b3770bce5b3ad42ab35074aa (diff) | |
firmware: arm_sdei: add sdei_is_present()
invoke_sdei_fn() returns -EIO when no SDEI conduit was probed, and the
core warns ("Failed to create event ...") on any registration that hits
that. An optional consumer that registers an event from an unconditional
initcall would therefore make every boot on a non-SDEI system emit that
warning for what is simply absent firmware.
Expose whether SDEI firmware is present so such a consumer can skip
registration -- and the warning -- when there is nothing to talk to.
Signed-off-by: Kiryl Shutsemau (Meta) <kas@kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Yin Fengwei <fengwei_yin@linux.alibaba.com>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/arm_sdei.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/arm_sdei.h b/include/linux/arm_sdei.h index f652a5028b59..b07113eeeff7 100644 --- a/include/linux/arm_sdei.h +++ b/include/linux/arm_sdei.h @@ -37,6 +37,9 @@ int sdei_event_unregister(u32 event_num); int sdei_event_enable(u32 event_num); int sdei_event_disable(u32 event_num); +/* Was SDEI firmware probed and usable? */ +bool sdei_is_present(void); + /* GHES register/unregister helpers */ int sdei_register_ghes(struct ghes *ghes, sdei_event_callback *normal_cb, sdei_event_callback *critical_cb); |