Re: [PATCH v2 10/13] EDAC/altera: Skip the panic notifier if kdump is loaded

[Guilherme G. Piccoli]

On 19/07/2022 16:53, Guilherme G. Piccoli wrote:
> The altera_edac panic notifier performs some data collection with
> regards errors detected; such code relies in the regmap layer to
> perform reads/writes, so the code is abstracted and there is some
> risk level to execute that, since the panic path runs in atomic
> context, with interrupts/preemption and secondary CPUs disabled.
> 
> Users want the information collected in this panic notifier though,
> so in order to balance the risk/benefit, let's skip the altera panic
> notifier if kdump is loaded. While at it, remove a useless header
> and encompass a macro inside the sole ifdef block it is used.
> 
> Cc: Dinh Nguyen <dinguyen@xxxxxxxxxx>
> Cc: Petr Mladek <pmladek@xxxxxxxx>
> Cc: Tony Luck <tony.luck@xxxxxxxxx>
> Signed-off-by: Guilherme G. Piccoli <gpiccoli@xxxxxxxxxx>
> 
> ---
> 
> V2:
> - new patch, based on the discussion in [0].
> [0] https://lore.kernel.org/lkml/62a63fc2-346f-f375-043a-fa21385279df@xxxxxxxxxx/
> 
>  drivers/edac/altera_edac.c | 16 ++++++++++++----
>  1 file changed, 12 insertions(+), 4 deletions(-)
> [...]

Hey Tony / Dinh, do you think this patch is good, based on the
discussion we had [0] last iteration?

Thanks in advance,


Guilherme


[0]
https://lore.kernel.org/lkml/599b72f6-76a4-8e6d-5432-56fb1ffd7e0b@xxxxxxxxxx/