[PATCH printk v3 0/2] nbcon irq_work fixes

[John Ogness]

Hi,

This is v3 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.

v2 is here [1].

The changes since v2:

- On nbcon_free(), perform the irq_work flush before stopping the
  kthread printer.

- Rework the commit message of patch 2/2 so that reducing interrupts
  is the primary motivation and the Tegra workaround is a secondary
  "benefit". I really want the Tegra workaround information to stay
  in the commit message because it is historically significant.

John Ogness

[0] https://lore.kernel.org/lkml/f3757a75-0ba1-4558-bf57-f19ab7e59a4c@xxxxxxxxxx
[1] https://lore.kernel.org/lkml/20260828140218.232439-1-john.ogness@xxxxxxxxxxxxx

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
-- 
2.47.3