Re: (subset) [PATCH 0/37] PCI/MSI: Enforce explicit IRQ vector management by removing devres auto-free

Manivannan Sadhasivam <[email protected]> Thu, 9 Jul 2026 07:43:19 +0200
Newsgroups dev.linux.lists.mhi,dev.linux.lists.iommu,org.freedesktop.lists.dri-devel,org.infradead.lists.linux-i3c,org.infradead.lists.linux-riscv,org.kernel.vger.dmaengine,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-crypto,org.kernel.vger.linux-cxl,org.kernel.vger.linux-gpio,org.kernel.vger.linux-i2c,org.kernel.vger.linux-input,org.kernel.vger.linux-media,org.kernel.vger.linux-mmc,org.kernel.vger.linux-pci,org.kernel.vger.linux-serial,org.kernel.vger.linux-spi,org.kernel.vger.linux-usb,org.kernel.vger.netdev,org.kernel.vger.platform-driver-x86
Message-ID <vb3ywnzdult3h3bzvh2m6ye5xcuxuzvufcsp4kdos6g2a4q6tn@5ut3kgguaey6>
On Thu, Jul 09, 2026 at 07:40:53AM +0200, Manivannan Sadhasivam wrote:
> 
> On Mon, 23 Feb 2026 23:29:39 +0800, Shawn Lin wrote:
> > This patch series addresses a long-standing design issue in the PCI/MSI
> > subsystem where the implicit, automatic management of IRQ vectors by
> > the devres framework conflicts with explicit driver cleanup, creating
> > ambiguity and potential resource management bugs.
> > 
> > ==== The Problem: Implicit vs. Explicit Management ====
> > Historically, `pcim_enable_device()` not only manages standard PCI resources
> > (BARs) via devres but also implicitly triggers automatic IRQ vector management
> > by setting a flag that registers `pcim_msi_release()` as a cleanup action.
> > 
> > [...]
> 
> Applied, thanks!
> 
> [13/37] bus: mhi: host: Replace pci_alloc_irq_vectors() with pcim_alloc_irq_vectors()
>         commit: 256995e80fcd39cab94eee8135dd90f6da6ac744
> 

Sorry, this is a mistake. This patch is not applied.

- Mani

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