Re: [Xenomai-help] RT-Socket-CAN bus error handling (was CAN errors and real-time behaviour (IRQ raise forever and may lock system))

[Jan Kiszka <jan.kiszka@domain.hid>]

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Wolfgang Grandegger wrote:
> Back to our preferred solution 1. Attached is a patch for review
> including some other fixes and suggestions accumulated over time:
> 
>      * ksrc/drivers/can/*: To avoid unnecessary bus error interrupt
>      flooding, the option CONFIG_XENO_DRIVERS_CAN_BUS_ERR now allows to
>      enable bus error interrupts "on demand" only if an application is
>      interested in such errors. It is automatically selected for CAN
>      controllers supporting bus error interrupts like the SJA1000.

Jumping into this more or less blindly: Could you explain to me (as well
as the poor CAN users...) what the downsides of enabling
CONFIG_XENO_DRIVERS_CAN_BUS_ERR are? If there isn't anything
significant, I would strongly vote for keeping the switch forest as
small as possible.

Jan


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