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Re: [PATCH v11.5 1/17] pci: msi: pass pdev to pci_enable_msi() function
- To: Stewart Hildebrand <stewart.hildebrand@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 21 Dec 2023 09:21:05 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 21 Dec 2023 08:21:15 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 20.12.2023 22:46, Stewart Hildebrand wrote:
> From: Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
>
> Previously pci_enable_msi() function obtained pdev pointer by itself,
> but taking into account upcoming changes to PCI locking, it is better
> when caller passes already acquired pdev pointer to the function,
> because caller knows better how to obtain the pointer and which locks
> are needed to be used. Also, in most cases caller already has pointer
> to pdev, so we can avoid an extra list walk.
>
> Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>
> Signed-off-by: Stewart Hildebrand <stewart.hildebrand@xxxxxxx>
> Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
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