On Tue, 1 May 2018 10:10:51 +0100 Suzuki K Poulose <suzuki.poul...@arm.com> wrote:
> Convert component enable/disable messages from dev_info to dev_dbg. > This is required to prevent LOCKDEP splats when operating in perf > mode where we could be called with locks held to enable a coresight Can we see the splats? Doesn't lockdep turn itself off if it starts triggering too many splats? > path. If someone wants to really see the messages, they can always > enable it at runtime via dynamic_debug. Won't the splats still occur when the messages are enabled with dynamic_debug? So in effect this patch only tries to mitigate the splats, all the while making things harder for regular users that now have to recompile their kernels, in exchange for a very small convenience for kernel developers that happen to see a splat or two with DEBUG_LOCKDEP set? Not the greatest choice...How about moving the dev_infos outside of the locks instead? Thanks, Kim
