Re: [PATCH printk v2 0/2] nbcon irq_work fixes

[Bradley Morgan <brads@mainlining.org>]

On 28 August 2026 15:02:07 BST, John Ogness <john.ogness@linutronix.de>
wrote:
>Hi,
>
>This is v2 of a series to address some irq_work issues with nbcon.
>Initially motivated as a workaround for hardware-related regressions
>reported [0], it turns out that the workaround is actually a nice
>improvement for nbcon deferred printing in general.
>
>v1 is here [1].
>
>John Ogness
>
>The changes since v1:
>
>- Add a preceding patch to flush the irq_work on nbcon_free(). This
>  pre-existing issue was reported [2] by Sashiko while it was
>  reviewing v1.
>
>[0]
>https://lore.kernel.org/lkml/f3757a75-0ba1-4558-bf57-f19ab7e59a4c@nvidia.com
>[1]
>https://lore.kernel.org/lkml/20260827184750.203521-1-john.ogness@linutronix.de
>[2]
>https://sashiko.dev/#/patchset/20260827184750.203521-1-john.ogness%40linutronix.de
>
>John Ogness (2):
>  printk/nbcon: Flush nbcon_irq_work in nbcon_free()
>  printk/nbcon: Change nbcon_irq_work to IRQ_WORK_LAZY
>
> kernel/printk/nbcon.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
>
>base-commit: ffe0486b139e45cd9c9ca2584f04a1910fe4f8a6
>
Tested-by: Bradley Morgan <brads@mainlining.org> # PKVM, based on Pixel 7 (ARM64)



--- Thanks!
https://lore.kernel.org/all/EE579805-42F2-4C58-B752-F28779EEB717@grrlz.net/