Hi! So I unfolded the RFC patch into smaller chunks and fixed an issue in SRCU pointed out by build bot. Build bot has been quiet for a day but I'm not 100% sure it's scanning my tree, so let's give these patches some ML exposure. The motivation here is that we run into a unused variable warning in networking code because RCU_LOCKDEP_WARN() makes its argument disappear with !LOCKDEP / !PROVE_RCU. We marked the variable as __maybe_unused, but that's ugly IMHO. This set makes the relevant function declarations visible to the compiler and uses (0 && (condition)) to make the compiler remove those calls before linker realizes they are never defined. I'm tentatively marking these for net-next, but if anyone (Paul?) wants to take them into their tree - even better. Jakub Kicinski (7): sched: un-hide lockdep_tasklist_lock_is_held() for !LOCKDEP rcu: un-hide lockdep maps for !LOCKDEP net: un-hide lockdep_sock_is_held() for !LOCKDEP net: sched: remove broken definitions and un-hide for !LOCKDEP srcu: use a more appropriate lockdep helper lockdep: provide dummy forward declaration of *_is_held() helpers rcu: prevent RCU_LOCKDEP_WARN() from swallowing the condition include/linux/lockdep.h | 6 ++++++ include/linux/rcupdate.h | 11 ++++++----- include/linux/rcupdate_trace.h | 4 ++-- include/linux/sched/task.h | 2 -- include/net/sch_generic.h | 12 ------------ include/net/sock.h | 2 -- kernel/rcu/srcutree.c | 2 +- 7 files changed, 15 insertions(+), 24 deletions(-) -- 2.26.2
