Thread (36 messages) 36 messages, 5 authors, 2024-08-20

Re: [PATCH 4/9] block: mtip32xx: Replace deprecated PCI functions

From: Andy Shevchenko <andy@kernel.org>
Date: 2024-08-19 18:04:55
Also in: linux-arm-kernel, linux-block, linux-doc, linux-fpga, linux-gpio, linux-pci, lkml, virtualization

On Mon, Aug 19, 2024 at 06:51:44PM +0200, Philipp Stanner wrote:
pcim_iomap_regions() and pcim_iomap_table() have been deprecated by the
PCI subsystem in commit e354bb84a4c1 ("PCI: Deprecate
pcim_iomap_table(), pcim_iomap_regions_request_all()").

In mtip32xx, these functions can easily be replaced by their respective
successors, pcim_request_region() and pcim_iomap(). Moreover, the
driver's call to pcim_iounmap_regions() is not necessary, because it's
invoked in the remove() function. Cleanup can, hence, be performed by
PCI devres automatically.

Replace pcim_iomap_regions() and pcim_iomap_table().

Remove the call to pcim_iounmap_regions().
...

int mtip_pci_probe()
 setmask_err:
-	pcim_iounmap_regions(pdev, 1 << MTIP_ABAR);
+	pcim_release_region(pdev, MTIP_ABAR);
But why?

...

mtip_pci_remove()
 	pci_disable_msi(pdev);
 
-	pcim_iounmap_regions(pdev, 1 << MTIP_ABAR);
This is okay.

...
 	pci_set_drvdata(pdev, NULL);
Side note: This is done by driver core for the last 10+ years…

-- 
With Best Regards,
Andy Shevchenko

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