Subject: Re: [v3, 1/1] powerpc/pseries: Make RAS IRQ explicitly dependent on DLPAR WQ

From: Michael Ellerman <[email-masked]>
Date: Thu, 11 Jan 2018 13:25:43 +1100 (AEDT)

On Wed, 2018-01-03 at 21:12:52 UTC, Jose Ricardo Ziviani wrote:
> The hotplug engine uses its own workqueue to handle IRQ requests, the
> problem is that such workqueue is initialized after init_ras_IRQ, which
> will cause a kernel panic if any hotplug interruption is issued in that
> period of time.
> 
> This patch makes RAS IRQ registration explicitly dependent on DLPAR
> workqueue and adds a check to make sure that the workqueue is not
> initialized more than once.
> 
> Reported-by: Min Deng <[email-masked]>
> Reported-by: Daniel Henrique Barboza <[email-masked]>
> Tested-by: Jose Ricardo Ziviani <[email-masked]>
> Signed-off-by: Michael Ellerman <[email-masked]>
> Reviewed-by: David Gibson <[email-masked]>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/e2d5915293ffdff977ddcfc12b817b

cheers