linux-kernel - Re: [PATCH v3 0/4] Introduce pcim_alloc_irq

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Message-ID: <YC41HD422Mjh1IZK@rric.localdomain>
Date:   Thu, 18 Feb 2021 10:36:28 +0100
From:   Robert Richter <rric@...nel.org>
To:     Dejin Zheng <zhengdejin5@...il.com>
Cc:     corbet@....net, jarkko.nikula@...ux.intel.com,
        andriy.shevchenko@...ux.intel.com, mika.westerberg@...ux.intel.com,
        bhelgaas@...gle.com, wsa@...nel.org, linux-doc@...r.kernel.org,
        linux-i2c@...r.kernel.org, linux-pci@...r.kernel.org, kw@...ux.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/4] Introduce pcim_alloc_irq_vectors()

On 17.02.21 00:02:45, Dejin Zheng wrote:
> Introduce pcim_alloc_irq_vectors(), a device-managed version of
> pci_alloc_irq_vectors(), In some i2c drivers, If pcim_enable_device()
> has been called before, then pci_alloc_irq_vectors() is actually a
> device-managed function. It is used as a device-managed function, So
> replace it with pcim_alloc_irq_vectors().
> 
> Changelog
> ---------
> v2 -> v3:
> 	- Add some commit comments for replace some codes in
> 	  pcim_release() by pci_free_irq_vectors().
> 	- Simplify the error handling path in i2c designware
> 	  driver.
> v1 -> v2:
> 	- Use pci_free_irq_vectors() to replace some code in
> 	  pcim_release().
> 	- Modify some commit messages.
> 
> Dejin Zheng (4):
>   PCI: Introduce pcim_alloc_irq_vectors()
>   Documentation: devres: Add pcim_alloc_irq_vectors()

This is already taken care of, see pcim_release():

        if (dev->msi_enabled)
                pci_disable_msi(dev);
        if (dev->msix_enabled)
                pci_disable_msix(dev);

Activated when used with pcim_enable_device().

This series is not required.

-Robert

>   i2c: designware: Use the correct name of device-managed function
>   i2c: thunderx: Use the correct name of device-managed function
> 
>  .../driver-api/driver-model/devres.rst        |  1 +
>  drivers/i2c/busses/i2c-designware-pcidrv.c    | 15 +++------
>  drivers/i2c/busses/i2c-thunderx-pcidrv.c      |  2 +-
>  drivers/pci/pci.c                             | 33 ++++++++++++++++---
>  include/linux/pci.h                           |  3 ++
>  5 files changed, 38 insertions(+), 16 deletions(-)
> 
> -- 
> 2.25.0
>