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hwmon: Implement a driver to detect under-voltage #31

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lategoodbye opened this issue May 10, 2018 · 2 comments
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hwmon: Implement a driver to detect under-voltage #31

lategoodbye opened this issue May 10, 2018 · 2 comments
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@lategoodbye
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Based on the downstream code raspberrypi/linux#2397 we should a implement a separate hwmon driver to get this code upstream.
@lategoodbye lategoodbye self-assigned this May 22, 2018
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Current attempt:
https://github.com/lategoodbye/rpi-zero/tree/under-voltage-v2

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Merged:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20180627&id=3c493c885cf8abf0986c9877875161dfd0a29273

lategoodbye pushed a commit that referenced this issue May 2, 2020
@jmberg-intel
iwlwifi: mvm: limit maximum queue appropriately
e5b72e3 
Due to some hardware issues, queue 31 isn't usable on devices that have
32 queues (7000, 8000, 9000 families), which is correctly reflected in
the configuration and TX queue initialization.

However, the firmware API and queue allocation code assumes that there
are 32 queues, and if something actually attempts to use #31 this leads
to a NULL-pointer dereference since it's not allocated.

Fix this by limiting to 31 in the IWL_MVM_DQA_MAX_DATA_QUEUE, and also
add some code to catch this earlier in the future, if the configuration
changes perhaps.

Cc: stable@vger.kernel.org # v4.9+
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20200417100405.98a79be2db6a.I3a4af6b03b87a6bc18db9b1ff9a812f397bee1fc@changeid
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