signal, perf: Add missing TRAP_PERF case in siginfo_layout()
Add the missing TRAP_PERF case in siginfo_layout() for interpreting the layout correctly as SIL_PERF_EVENT instead of just SIL_FAULT. This ensures the si_perf field is copied and not just the si_addr field. This was caught and tested by running the perf_events/sigtrap_threads kselftest as a 32-bit binary with a 64-bit kernel. Fixes: fb6cc127 ("signal: Introduce TRAP_PERF si_code and si_perf to siginfo") Signed-off-by:Marco Elver <elver@google.com> Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20210422191823.79012-2-elver@google.com
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3ddb3fd8
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