Hi Gregory, On Tue, Jun 28, 2022 at 08:41:44PM -0700, Gregory Erwin wrote: > Hmm, set_notify_signal() calls wake_up_state() in kernel/sched/core.c, which > is not currently exported. Only by including EXPORT_SYMBOL(wake_up_state) and > rebuilding vmlinux was I able to build rng-core.ko and load it successfully. > > That said, this patch allows 'ip link set wlan0 down' to wake a blocked process > reading from /dev/hwrng, eliminating the delay as described. I'll give my > sign-off with the EXPORT_SYMBOL sorted out. Thanks for testing, and thanks for the note about EXPORT_SYMBOL(). I'll send a v+1 with that fixed. And then it sounds like this patch finally addresses all the issues you were seeing. Pfiew! Jason
