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doc: net: napi: Update documentation for napi_schedule_irqoff

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Since commit 8380c81d5c ("net: Treat __napi_schedule_irqoff() as
__napi_schedule() on PREEMPT_RT"), napi_schedule_irqoff will do the
right thing if IRQs are threaded. Therefore, there is no need to use
IRQF_NO_THREAD.

Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/20240930153955.971657-1-sean.anderson@linux.dev
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Sean Anderson 2024-09-30 11:39:54 -04:00 committed by Paolo Abeni
parent 1127c73a8d
commit b63ad06ddd
1 changed files with 2 additions and 3 deletions
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5
Documentation/networking/napi.rst
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@ -144,9 +144,8 @@ IRQ should only be unmasked after a successful call to napi_complete_done():
napi_schedule_irqoff() is a variant of napi_schedule() which takes advantage
of guarantees given by being invoked in IRQ context (no need to
mask interrupts). Note that PREEMPT_RT forces all interrupts
to be threaded so the interrupt may need to be marked ``IRQF_NO_THREAD``
to avoid issues on real-time kernel configurations.
mask interrupts). napi_schedule_irqoff() will fall back to napi_schedule() if
IRQs are threaded (such as if ``PREEMPT_RT`` is enabled).
Instance to queue mapping
-------------------------