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Convert all imports in the PCI Rust module to use "kernel vertical"
style.
With this subsequent patches neither introduce unrelated changes nor
leave an inconsistent import pattern.
While at it, drop unnecessary imports covered by prelude::*.
Link: https://docs.kernel.org/rust/coding-guidelines.html#imports
Reviewed-by: Zhi Wang <zhiw@nvidia.com>
Link: https://patch.msgid.link/20251105120352.77603-1-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Currently request_irq() returns
Result<impl PinInit<irq::Registration<T>, Error> + 'a>
which may carry an error in the Result or the initializer; the same is
true for request_threaded_irq().
Use pin_init::pin_init_scope() to get rid of this redundancy.
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20251103203053.2348783-1-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Consistently use INTx, as in the description of IrqType::Intx, to refer
to the four legacy PCI interrupts, INTA#, INTB#, INTC#, and INTD#.
Link: https://lore.kernel.org/rust-for-linux/20251015230209.GA960343@bhelgaas/
Link: https://github.com/Rust-for-Linux/linux/issues/1196
Suggested-by: Bjorn Helgaas <helgaas@kernel.org>
Signed-off-by: Peter Colberg <pcolberg@redhat.com>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Move the PCI interrupt infrastructure to a separate sub-module in order
to keep things organized.
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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