From: Danilo Krummrich <dakr@kernel.org>
To: Boqun Feng <boqun.feng@gmail.com>, Bjorn Helgaas <bhelgaas@google.com>
Cc: "Miguel Ojeda" <ojeda@kernel.org>, "Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <lossin@kernel.org>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Trevor Gross" <tmgross@umich.edu>,
"Joel Fernandes" <joelagnelf@nvidia.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
rust-for-linux@vger.kernel.org
Subject: Re: [PATCH] PCI: Provide pci_free_irq_vectors() for CONFIG_PCI=n
Date: Tue, 16 Dec 2025 10:13:08 +0100 [thread overview]
Message-ID: <f802398c-05e6-444d-9e8d-d37be1c69041@kernel.org> (raw)
In-Reply-To: <20251215025444.65544-1-boqun.feng@gmail.com>
On 12/15/25 3:54 AM, Boqun Feng wrote:
> Commit 473b9f331718 ("rust: pci: fix build failure when CONFIG_PCI_MSI
> is disabled") fixed a build error by providing rust helpers when
> CONFIG_PCI_MSI=n. However the rust helpers rely on the
> pci_alloc_irq_vectors() function is defined, which is not true when
> CONFIG_PCI=n. There are multiple ways to fix this, e.g. a possible fix
> could be just remove the calling of pci_alloc_irq_vectors() since it's
> empty when CONFIG_PCI_MSI=n anyway. However, since PCI irq APIs, such as
> pci_alloc_irq_vectors(), are already defined even when CONFIG_PCI=n, the
> more reasonable fix is to define pci_alloc_irq_vectors() when
> CONFIG_PCI=n and this aligns with the situations of other primitives as
> well.
>
> Fixes: 473b9f331718 ("rust: pci: fix build failure when CONFIG_PCI_MSI is disabled")
> Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Bjorn, I assume you will pick this up? Otherwise I can pick it up as well, I
will likely send a -fixes PR for -rc2 anyways.
prev parent reply other threads:[~2025-12-16 9:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-15 2:54 [PATCH] PCI: Provide pci_free_irq_vectors() for CONFIG_PCI=n Boqun Feng
2025-12-16 9:13 ` Danilo Krummrich [this message]
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