linux-kernel - [PATCH v3 1/3] PCI: Convert to device_create_managed_software

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Message-Id: <20211006112643.77684-2-heikki.krogerus@linux.intel.com>
Date:   Wed,  6 Oct 2021 14:26:41 +0300
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Zhangfei Gao <zhangfei.gao@...aro.org>,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: [PATCH v3 1/3] PCI: Convert to device_create_managed_software_node()

In quirk_huawei_pcie_sva(), use device_create_managed_software_node()
instead of device_add_properties() to set the "dma-can-stall"
property.

This is the last user of device_add_properties() that relied on
device_del() to take care of also calling device_remove_properties().
After this change we can finally get rid of that
device_remove_properties() call in device_del().

After that device_remove_properties() call has been removed from
device_del(), the software nodes that hold the additional device
properties become reusable and shareable as there is no longer a
default assumption that those nodes are lifetime bound the first
device they are associated with.

Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>
Acked-by: Zhangfei Gao <zhangfei.gao@...aro.org>
Signed-off-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
---
 drivers/pci/quirks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index b6b4c803bdc94..fe5eedba47908 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1850,7 +1850,7 @@ static void quirk_huawei_pcie_sva(struct pci_dev *pdev)
 	 * can set it directly.
 	 */
 	if (!pdev->dev.of_node &&
-	    device_add_properties(&pdev->dev, properties))
+	    device_create_managed_software_node(&pdev->dev, properties, NULL))
 		pci_warn(pdev, "could not add stall property");
 }
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa250, quirk_huawei_pcie_sva);
-- 
2.33.0