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From: Frank Li <Frank.li@oss.nxp.com>
To: Koichiro Den <den@valinux.co.jp>
Cc: Manivannan Sadhasivam <mani@kernel.org>,
	Vinod Koul <vkoul@kernel.org>, Frank Li <Frank.Li@kernel.org>,
	Cai Huoqing <cai.huoqing@linux.dev>,
	Serge Semin <fancer.lancer@gmail.com>,
	Gustavo Pimentel <Gustavo.Pimentel@synopsys.com>,
	Devendra K Verma <devendra.verma@amd.com>,
	dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/7] dmaengine: dw-edma-pcie: Drop redundant pci_free_irq_vectors()
Date: Sat, 11 Jul 2026 09:41:55 -0500	[thread overview]
Message-ID: <alJWM1oUwCuLAhqB@SMW015318> (raw)
In-Reply-To: <20260710080903.2392888-6-den@valinux.co.jp>

On Fri, Jul 10, 2026 at 05:09:01PM +0900, Koichiro Den wrote:
> dw_edma_pcie enables the PCI device with pcim_enable_device(), so IRQ
> vectors allocated by pci_alloc_irq_vectors() are released by
> pcim_msi_release() on device release. The driver should not call
> pci_free_irq_vectors() manually.
>
> Drop the redundant remove-time cleanup and rely on the managed PCI
> device lifetime instead, as documented by commit 03e4905402ae ("PCI/MSI:
> Clarify pci_free_irq_vectors() usage for managed devices").
>
> Signed-off-by: Koichiro Den <den@valinux.co.jp>
> ---

Reviewed-by: Frank Li <Frank.Li@nxp.com>

> Changes in v2:
>   - New patch in v2, posted as part of this preparation series.
>
>  drivers/dma/dw-edma/dw-edma-pcie.c | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/drivers/dma/dw-edma/dw-edma-pcie.c b/drivers/dma/dw-edma/dw-edma-pcie.c
> index 791c46e8ae4c..5e81a433a957 100644
> --- a/drivers/dma/dw-edma/dw-edma-pcie.c
> +++ b/drivers/dma/dw-edma/dw-edma-pcie.c
> @@ -555,9 +555,6 @@ static void dw_edma_pcie_remove(struct pci_dev *pdev)
>  	err = dw_edma_remove(chip);
>  	if (err)
>  		pci_warn(pdev, "can't remove device properly: %d\n", err);
> -
> -	/* Freeing IRQs */
> -	pci_free_irq_vectors(pdev);
>  }
>
>  static const struct pci_device_id dw_edma_pcie_id_table[] = {
> --
> 2.51.0
>

  reply	other threads:[~2026-07-11 14:42 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-10  8:08 [PATCH 0/7] dmaengine: dw-edma: Fixes and interrupt-path groundwork Koichiro Den
2026-07-10  8:08 ` [PATCH 1/7] dmaengine: dw-edma: Fix HDMA channel status register access Koichiro Den
2026-07-10  8:19   ` sashiko-bot
2026-07-10 21:26   ` Frank Li
2026-07-13  5:17     ` Koichiro Den
2026-07-10  8:08 ` [PATCH 2/7] dmaengine: dw-edma: Terminate STOP requests without callbacks Koichiro Den
2026-07-10  8:26   ` sashiko-bot
2026-07-11 14:27   ` Frank Li
2026-07-10  8:08 ` [PATCH 3/7] dmaengine: dw-edma: Clean up vchan descriptors on termination Koichiro Den
2026-07-10  8:24   ` sashiko-bot
2026-07-11 14:39   ` Frank Li
2026-07-10  8:09 ` [PATCH 4/7] dmaengine: dw-edma: Serialize channel state checks Koichiro Den
2026-07-10  8:28   ` sashiko-bot
2026-07-10  8:09 ` [PATCH 5/7] dmaengine: dw-edma-pcie: Drop redundant pci_free_irq_vectors() Koichiro Den
2026-07-11 14:41   ` Frank Li [this message]
2026-07-10  8:09 ` [PATCH 6/7] dmaengine: dw-edma: Snapshot the v0 interrupt status once per handler pass Koichiro Den
2026-07-11 14:44   ` Frank Li
2026-07-10  8:09 ` [PATCH 7/7] dmaengine: dw-edma: Defer channel IRQ handling to workqueue Koichiro Den
2026-07-10  8:24   ` sashiko-bot
2026-07-11 14:55   ` Frank Li

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