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author | Nikolay Borisov <nik.borisov@suse.com> | 2025-02-25 16:33:48 +0200 |
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committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-02-26 12:18:37 +0100 |
commit | 6447828875b7d768e4ef0f58765b4bd4e16bcf18 (patch) | |
tree | 42d542fd45bb4a7d5567c3e203b8b5ce3a4d409d /tools/testing/selftests/bpf/prog_tests/percpu_alloc.c | |
parent | d082ecbc71e9e0bf49883ee4afd435a77a5101b6 (diff) | |
download | lwn-6447828875b7d768e4ef0f58765b4bd4e16bcf18.tar.gz lwn-6447828875b7d768e4ef0f58765b4bd4e16bcf18.zip |
x86/mce/inject: Remove call to mce_notify_irq()
The call to mce_notify_irq() has been there since the initial version of
the soft inject mce machinery, introduced in
ea149b36c7f5 ("x86, mce: add basic error injection infrastructure").
At that time it was functional since injecting an MCE resulted in the
following call chain:
raise_mce()
->machine_check_poll()
->mce_log() - sets notfiy_user_bit
->mce_notify_user() (current mce_notify_irq) consumed the bit and called the
usermode helper.
However, with the introduction of
011d82611172 ("RAS: Add a Corrected Errors Collector")
the code got moved around and the usermode helper began to be called via the
early notifier mce_first_notifier() rendering the call in raise_local()
defunct as the mce_need_notify bit (ex notify_user) is only being set from the
early notifier.
Remove the noop call and make mce_notify_irq() static.
No functional changes.
Signed-off-by: Nikolay Borisov <nik.borisov@suse.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20250225143348.268469-1-nik.borisov@suse.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/percpu_alloc.c')
0 files changed, 0 insertions, 0 deletions