Messages in this thread | | | From | "Jason A. Donenfeld" <> | Date | Sat, 25 Jun 2022 02:40:01 +0200 | Subject | Re: [PATCH v2] ath9k: sleep for less time when unregistering hwrng |
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Hi Gregory,
On Sat, Jun 25, 2022 at 2:13 AM Gregory Erwin <gregerwin256@gmail.com> wrote: > This patch is working as you described. Trying to read from /dev/hwrng > consistently blocks for only 1.3s before returning an IO error. The longest > that I observed 'ip link set wlan0 down' to block was also about 1.3s, > and that was immediately after 'cat /dev/hwrng'. Additionally, the longest > duration that I observed for wiphy_suspend() to return was just under 100ms. > > Tested-by: Gregory Erwin <gregerwin256@gmail.com>
Great, thanks for testing. I think that barring more invasive changes to the hwrng subsystem, a heuristic approach like this is the best we're going to do inside the ath9k driver itself.
So Toke/Kalle - can you queue this up?
Jason
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