From: Manivannan Sadhasivam <mani@kernel.org>
To: Bjorn Helgaas <bhelgaas@google.com>,
"Vaibhaav Ram T . L" <vaibhaavram.tl@microchip.com>,
Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>,
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Zhou Wang <wangzhou1@hisilicon.com>,
Longfang Liu <liulongfang@huawei.com>,
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Cc: Arnd Bergmann <arnd@arndb.de>,
Benjamin Tissoires <bentiss@kernel.org>,
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Haojian Zhuang <haojian.zhuang@gmail.com>,
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Mauro Carvalho Chehab <mchehab@kernel.org>,
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Subject: Re: (subset) [PATCH 0/37] PCI/MSI: Enforce explicit IRQ vector management by removing devres auto-free
Date: Thu, 09 Jul 2026 07:40:53 +0200 [thread overview]
Message-ID: <178357565325.731734.7291964273199898845.b4-ty@b4> (raw)
In-Reply-To: <1771860581-82092-1-git-send-email-shawn.lin@rock-chips.com>
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
Best regards,
--
மணிவண்ணன் சதாசிவம்
next prev parent reply other threads:[~2026-07-09 5:41 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-23 15:29 [PATCH 0/37] PCI/MSI: Enforce explicit IRQ vector management by removing devres auto-free Shawn Lin
2026-02-23 15:29 ` [PATCH 01/37] PCI/MSI: Add Devres managed IRQ vectors allocation Shawn Lin
2026-02-24 0:04 ` Jakub Kicinski
2026-02-24 2:08 ` Shawn Lin
2026-02-24 7:47 ` Philipp Stanner
2026-02-24 8:21 ` Shawn Lin
2026-02-24 8:32 ` Philipp Stanner
2026-02-24 16:20 ` Jonathan Cameron
2026-02-23 15:29 ` [PATCH 37/37] PCI/MSI: Only check is_msi_managed in pcim_setup_msi_release() Shawn Lin
2026-02-23 15:50 ` [PATCH 0/37] PCI/MSI: Enforce explicit IRQ vector management by removing devres auto-free Andy Shevchenko
2026-02-23 16:09 ` Shawn Lin
2026-02-23 17:38 ` Andy Shevchenko
2026-02-24 2:29 ` Shawn Lin
2026-02-23 15:56 ` [PATCH 26/37] net: stmmac: Replace pci_alloc_irq_vectors() with pcim_alloc_irq_vectors() Shawn Lin
2026-02-23 15:56 ` [PATCH 27/37] r8169: " Shawn Lin
2026-02-23 15:57 ` [PATCH 28/37] net: thunder_bgx: " Shawn Lin
2026-02-23 15:57 ` [PATCH 29/37] net: hibmcge: " Shawn Lin
2026-02-24 4:14 ` [PATCH 0/37] PCI/MSI: Enforce explicit IRQ vector management by removing devres auto-free Simon Richter
2026-02-24 7:39 ` Philipp Stanner
2026-02-24 9:12 ` Andy Shevchenko
2026-02-24 10:30 ` Philipp Stanner
2026-02-24 10:39 ` Andy Shevchenko
2026-07-09 5:40 ` Manivannan Sadhasivam [this message]
2026-07-09 5:43 ` (subset) " Manivannan Sadhasivam
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