[PATCH] rtlwifi: Change long delays to sleeps

Jan Kiszka jan.kiszka at web.de
Sat Jun 4 20:02:51 UTC 2016


On 2016-06-04 18:52, Kalle Valo wrote:
> Jan Kiszka <jan.kiszka at web.de> writes:
> 
>> On 2016-02-15 23:12, Larry Finger wrote:
>>> Routine rtl_addr_delay() uses delay statements in code that can
>>> sleep. To improve system responsiveness, the various delay statements
>>> are changed.
>>>
>>> In addition, routines rtl_rfreg_delay() and rtl_bb_delay() are
>>> rewritten to use the code in rtl_addr_delay() for most of their
>>> input values.
>>>
>>> Suggested-by: Byeoungwook Kim <quddnr145 at gmail.com>
>>> Signed-off-by: Larry Finger <Larry.Finger at lwfinger.net>
> 
> [...]
> 
>> This breaks spectacularly when turning on a little bit of correctness
>> checking:
>>
>> BUG: scheduling while atomic: wpa_supplicant/1116/0x00000002
> 
> This should fix it:
> 
> https://git.kernel.org/cgit/linux/kernel/git/kvalo/wireless-drivers.git/commit/?id=de26859dcf363d520cc44e59f6dcaf20ebe0aadf
> 

Probably, will test later. But you should really work on making all
these task-context-only. Threaded IRQs?

Jan

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