Ping-Ke Shih <pkshih@xxxxxxxxxxx> wrote:
> From: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
>
> Enter/leavel IPS and LPS are large critical section, and they can't use
> sleep function because running in atomic-context, which own a spin_lock.
> In commit ba9f93f82aba ("rtlwifi: Fix enter/exit power_save"), it moves
> LPS functions to thread-context, so this commit can simply change LPS's
> spin lock to mutex.
> Considering IPS functions, rtl_ips_nic_on() may be called by TX tasklet
> (softirq-context) that check whether packet is auth frame. Fortunately,
> current mac80211 will ask driver to leave IPS using op_config with
> changed flag IEEE80211_CONF_CHANGE_IDLE, before issuing auth frame, so
> IPS functions can run in thread-context and use mutex to protect critical
> section, too.
> Also, this commit removes some useless spin locks.
>
> Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
8 patches applied to wireless-drivers-next.git, thanks.
a3fa3669d18c rtlwifi: Use mutex to replace spin_lock to protect IPS and LPS
c8abbe79cce6 rtlwifi: fix scan channel 1 fail after IPS
37e89a0e5aa0 rtlwifi: unlink bss when un-association
a44709bba70f rtlwifi: btcoex: Add power_on_setting routine
40d9dd4f1c5d rtlwifi: btcoex: Remove global variables from btcoex
3afb7da4693c rtlwifi: btcoex: Remove typedef statements
b2283dad6bfd rtlwifi: btcoex: Add common function for qeurying BT information
188b6b092e3a rtlwifi: btcoex: add rfe_type parameter to btcoex
--
https://patchwork.kernel.org/patch/10168581/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
