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Re: [PATCH v7] ath9k: let sleep be interrupted when unregistering hwrng

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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



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