linux-kernel - [PATCH] ata: macio: Use non-hybrid PCI devres API

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Message-ID: <20250604113423.138595-2-phasta@kernel.org>
Date: Wed,  4 Jun 2025 13:34:24 +0200
From: Philipp Stanner <phasta@...nel.org>
To: Damien Le Moal <dlemoal@...nel.org>,
	Niklas Cassel <cassel@...nel.org>
Cc: linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Philipp Stanner <phasta@...nel.org>
Subject: [PATCH] ata: macio: Use non-hybrid PCI devres API

macio enables its PCI device with pcim_enable_device(). This,
implicitly, switches the function pci_request_regions() into managed
mode, where it becomes a devres function.

The PCI subsystem wants to remove this hybrid nature from its
interfaces. To do so, users of the aforementioned combination of
functions must be ported to non-hybrid functions.

Replace the call to sometimes-managed pci_request_regions() with one to
the always-managed pcim_request_all_regions().

Signed-off-by: Philipp Stanner <phasta@...nel.org>
---
Hi,
seems I forgot sending this patch out a while ago. Mea culpa.

PCI has currently chained the changes mentioned above queued up for
Linus, so it's probably a good idea to get this into macio relatively
soonish. Otherwise the driver would likely fail to reload in v6.16,
because the device's PCI regions remain blocked.

Thx
P.
---
 drivers/ata/pata_macio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c
index fbf5f07ea357..f7a933eefe05 100644
--- a/drivers/ata/pata_macio.c
+++ b/drivers/ata/pata_macio.c
@@ -1298,7 +1298,7 @@ static int pata_macio_pci_attach(struct pci_dev *pdev,
 	priv->dev = &pdev->dev;

 	/* Get MMIO regions */
-	if (pci_request_regions(pdev, "pata-macio")) {
+	if (pcim_request_all_regions(pdev, "pata-macio")) {
 		dev_err(&pdev->dev,
 			"Cannot obtain PCI resources\n");
 		return -EBUSY;
-- 
2.48.1