* kernel driver "drivers/net/ethernet/realtek/r8169.c" msleep question
@ 2014-02-23 22:38 Justin van Wijngaarden
2014-02-23 23:55 ` Francois Romieu
0 siblings, 1 reply; 2+ messages in thread
From: Justin van Wijngaarden @ 2014-02-23 22:38 UTC (permalink / raw)
To: nic_swsd; +Cc: netdev, romieu
Hello,
I am in the progress of doing some checkpatch.pl clean-ups and took the above
driver to work on.
On line 6926 there is an msleep(1) statement.
According to the linux documentation @ Documentation/timers/timers-howto.txt
the msleep is not functioning as it should.
see output from that documentation below.
// quote
Why not msleep for (1ms - 20ms)?
Explained originally here:
http://lkml.org/lkml/2007/8/3/250
msleep(1~20) may not do what the caller intends, and
will often sleep longer (~20 ms actual sleep for any
value given in the 1~20ms range). In many cases this
is not the desired behavior.
// end quote
If you like I can take a re-write to usleep (1ms) or perhaps a 10/20 msleep.
I tested it both with my own hardware which works fine on both cases, but
ofcourse I don't have the hardware to test it for all use-cases.
Any preference?
Regards,
Justin van Wijngaarden
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: kernel driver "drivers/net/ethernet/realtek/r8169.c" msleep question
2014-02-23 22:38 kernel driver "drivers/net/ethernet/realtek/r8169.c" msleep question Justin van Wijngaarden
@ 2014-02-23 23:55 ` Francois Romieu
0 siblings, 0 replies; 2+ messages in thread
From: Francois Romieu @ 2014-02-23 23:55 UTC (permalink / raw)
To: Justin van Wijngaarden; +Cc: nic_swsd, netdev
Justin van Wijngaarden <justinvanwijngaarden@gmail.com> :
[...]
> If you like I can take a re-write to usleep (1ms) or perhaps a 10/20 msleep.
> I tested it both with my own hardware which works fine on both cases, but
> ofcourse I don't have the hardware to test it for all use-cases.
>
> Any preference?
There is no much gain here.
I respectfully suggest to focus on real bugs.
--
Ueimor
^ permalink raw reply [flat|nested] 2+ messages in thread
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2014-02-23 23:55 ` Francois Romieu
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