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Currently, CPU backtrace functions cannot be called from loadable modules because the underlying helper arch_trigger_cpumask_backtrace() is not exported. Instead of exporting arch_trigger_cpumask_backtrace() individually across every supported architecture, introduce and export a common helper, cpumask_backtrace(), in lib/nmi_backtrace.c. Update the four inline CPU backtrace macros in include/linux/nmi.h to route through this centralized helper. Signed-off-by: Mayank Rungta <mrungta@google.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lore.kernel.org/r/20260730-export-cpu-backtrace-apis-v1-1-bace8e1cb817@google.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
139 lines
3.9 KiB
139 lines
3.9 KiB