linux-kernel - [PATCH 4/9] block: mtip32xx: Replace deprecated PCI functions

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Message-ID: <20240819165148.58201-6-pstanner@redhat.com>
Date: Mon, 19 Aug 2024 18:51:44 +0200
From: Philipp Stanner <pstanner@...hat.com>
To: onathan Corbet <corbet@....net>,
	Jens Axboe <axboe@...nel.dk>,
	Wu Hao <hao.wu@...el.com>,
	Tom Rix <trix@...hat.com>,
	Moritz Fischer <mdf@...nel.org>,
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	Andy Shevchenko <andy@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
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	Paolo Abeni <pabeni@...hat.com>,
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	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Philipp Stanner <pstanner@...hat.com>,
	Hannes Reinecke <hare@...e.de>,
	Damien Le Moal <dlemoal@...nel.org>,
	Chaitanya Kulkarni <kch@...dia.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>
Cc: linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-block@...r.kernel.org,
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	virtualization@...ts.linux.dev
Subject: [PATCH 4/9] block: mtip32xx: Replace deprecated PCI functions

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().

Signed-off-by: Philipp Stanner <pstanner@...hat.com>
---
 drivers/block/mtip32xx/mtip32xx.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index c6ef0546ffc9..c7da6090954e 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -2716,7 +2716,9 @@ static int mtip_hw_init(struct driver_data *dd)
 	int rv;
 	unsigned long timeout, timetaken;
 
-	dd->mmio = pcim_iomap_table(dd->pdev)[MTIP_ABAR];
+	dd->mmio = pcim_iomap(dd->pdev, MTIP_ABAR, 0);
+	if (!dd->mmio)
+		return -ENOMEM;
 
 	mtip_detect_product(dd);
 	if (dd->product_type == MTIP_PRODUCT_UNKNOWN) {
@@ -3726,9 +3728,9 @@ static int mtip_pci_probe(struct pci_dev *pdev,
 	}
 
 	/* Map BAR5 to memory. */
-	rv = pcim_iomap_regions(pdev, 1 << MTIP_ABAR, MTIP_DRV_NAME);
+	rv = pcim_request_region(pdev, 1, MTIP_DRV_NAME);
 	if (rv < 0) {
-		dev_err(&pdev->dev, "Unable to map regions\n");
+		dev_err(&pdev->dev, "Unable to request regions\n");
 		goto iomap_err;
 	}
 
@@ -3849,7 +3851,7 @@ static int mtip_pci_probe(struct pci_dev *pdev,
 		drop_cpu(dd->work[2].cpu_binding);
 	}
 setmask_err:
-	pcim_iounmap_regions(pdev, 1 << MTIP_ABAR);
+	pcim_release_region(pdev, MTIP_ABAR);
 
 iomap_err:
 	kfree(dd);
@@ -3925,7 +3927,6 @@ static void mtip_pci_remove(struct pci_dev *pdev)
 
 	pci_disable_msi(pdev);
 
-	pcim_iounmap_regions(pdev, 1 << MTIP_ABAR);
 	pci_set_drvdata(pdev, NULL);
 
 	put_disk(dd->disk);
-- 
2.46.0