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17d4a399e8
Convert IrqVectorRegistration from a devres-managed internal type to a lifetime-annotated type that owns the PCI interrupt vector allocation. Dropping it frees the vectors. IrqVector gains a reference to the IrqVectorRegistration it was derived from. Since index() borrows the registration, the compiler prevents the allocation from being dropped while any IrqVector (and hence any irq::Registration built from it) is still live. alloc_irq_vectors() returns IrqVectorRegistration<'_> directly, giving drivers explicit control over the allocation lifetime, which is needed by net and block drivers that re-allocate vectors at runtime, e.g. during queue reconfiguration or device recovery. Tested-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: Gary Guo <gary@garyguo.net> Link: https://patch.msgid.link/20260813165234.620555-2-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org>