[PATCH/RFT v2 0/4] ath10k: fixes

Kalle Valo kvalo at qca.qualcomm.com
Tue Oct 8 15:17:30 EDT 2013

Michal Kazior <michal.kazior at tieto.com> writes:

> Hi,
> This patchset addresses recently spotted issue
> with (yet another) scheduling while atomic bug
> (the other being WEP key index setting). This one
> is related to hw_config() and powersave settings.
> This comes from recent changes I've done to
> HTC/WMI. WMI commands can block now so it's
> illegal to call them in an atomic context anymore.
> ath10k needs to setup some settings per-vdev (i.e.
> per-interface) such as powersave, rts, fragmentation.
> Until now mac80211 iteration functions were used.
> However using non-atomic iteration function variant
> doesn't solve the problem as it introduces an
> issue with iflist_mtx deadlock in some cases.
> I briefly tried to reproduce the issue Kalle
> reported but was unsuccessful thus the "/RFT".
> v2:
>  * fix kbuild test robot warning
>    (uninitialized `ret`)
>  * add patch #4 that removes code that becomes
>    unnecessary after patch #3
> Michal Kazior (4):
>   ath10k: fix add_interface failure handling
>   ath10k: track vif list internally
>   ath10k: fix scheduling while atomic config bug
>   ath10k: remove unnecessary checks

Due to problems with patch 1 I'm dropping this patchset for now.

Kalle Valo

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