This is the fourth attempt to improve the situation of reliable stack trace warnings in livepatch. Based on discussion in 20190531074147.27616-1-pmladek@xxxxxxxx (v3). Changes against v3: + weak save_stack_trace_tsk_reliable() removed, because it is not needed anymore thanks to Thomas' recent improvements + klp_have_reliable_stack() check reintroduced in klp_try_switch_task() Changes against v2: + Put back the patch removing WARN_ONCE in the weak save_stack_trace_tsk_reliable(). It is related. + Simplified patch removing the duplicate warning from klp_check_stack() + Update commit message for 3rd patch [Josh] Miroslav Benes (2): stacktrace: Remove weak version of save_stack_trace_tsk_reliable() Revert "livepatch: Remove reliable stacktrace check in klp_try_switch_task()" Petr Mladek (1): livepatch: Remove duplicate warning about missing reliable stacktrace support kernel/livepatch/transition.c | 8 +++++++- kernel/stacktrace.c | 8 -------- 2 files changed, 7 insertions(+), 9 deletions(-) -- 2.21.0