* thread_do_softirq in 4.19
@ 2021-01-08 14:43 Richard Cochran
2021-01-21 15:41 ` Sebastian Andrzej Siewior
0 siblings, 1 reply; 2+ messages in thread
From: Richard Cochran @ 2021-01-08 14:43 UTC (permalink / raw)
To: linux-rt-users
Dear list,
The function thread_do_softirq() is never used anywhere in
v4.19.135-rt60.
git grep thread_do_softirq
include/linux/interrupt.h:505:static inline void thread_do_softirq(void) { do_softirq(); }
include/linux/interrupt.h:515:extern void thread_do_softirq(void);
kernel/softirq.c:674:void thread_do_softirq(void)
Is it supposed to be called from somewhere, or is it simply dead code?
Thanks,
Richard
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: thread_do_softirq in 4.19
2021-01-08 14:43 thread_do_softirq in 4.19 Richard Cochran
@ 2021-01-21 15:41 ` Sebastian Andrzej Siewior
0 siblings, 0 replies; 2+ messages in thread
From: Sebastian Andrzej Siewior @ 2021-01-21 15:41 UTC (permalink / raw)
To: Richard Cochran; +Cc: linux-rt-users
On 2021-01-08 06:43:14 [-0800], Richard Cochran wrote:
> Dear list,
Hello Richard,
> The function thread_do_softirq() is never used anywhere in
> v4.19.135-rt60.
>
> git grep thread_do_softirq
>
> include/linux/interrupt.h:505:static inline void thread_do_softirq(void) { do_softirq(); }
> include/linux/interrupt.h:515:extern void thread_do_softirq(void);
> kernel/softirq.c:674:void thread_do_softirq(void)
>
> Is it supposed to be called from somewhere, or is it simply dead code?
Dead code. My guess is, that is around unused since the softirq rework
around v3.0/v3.2. I just looked at v3.6-RT and it was unused there, too.
It has been removed it in v5.2-rt1.
> Thanks,
> Richard
Sebastian
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2021-01-08 14:43 thread_do_softirq in 4.19 Richard Cochran
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