linux-kernel - [PATCH 2/4] cxl/pci: Allocate irq vectors earlier during probe

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Message-Id: <20230523170927.20685-3-dave@stgolabs.net>
Date:   Tue, 23 May 2023 10:09:25 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     dan.j.williams@...el.com
Cc:     dave.jiang@...el.com, alison.schofield@...el.com,
        vishal.l.verma@...el.com, ira.weiny@...el.com,
        Jonathan.Cameron@...wei.com, fan.ni@...sung.com,
        a.manzanares@...sung.com, dave@...olabs.net,
        linux-cxl@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] cxl/pci: Allocate irq vectors earlier during probe

Move the cxl_alloc_irq_vectors() call further up in the probing
in order to allow for mailbox interrupt usage. No change in
semantics.

Reviewed-by: Dave Jiang <dave.jiang@...el.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Davidlohr Bueso <dave@...olabs.net>
---
 drivers/cxl/pci.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c
index 0872f2233ed0..f2039fe0805d 100644
--- a/drivers/cxl/pci.c
+++ b/drivers/cxl/pci.c
@@ -714,6 +714,10 @@ static int cxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	else
 		dev_warn(&pdev->dev, "Media not active (%d)\n", rc);
 
+	rc = cxl_alloc_irq_vectors(pdev);
+	if (rc)
+		return rc;
+
 	rc = cxl_pci_setup_mailbox(cxlds);
 	if (rc)
 		return rc;
@@ -738,10 +742,6 @@ static int cxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (rc)
 		return rc;
 
-	rc = cxl_alloc_irq_vectors(pdev);
-	if (rc)
-		return rc;
-
 	cxlmd = devm_cxl_add_memdev(cxlds);
 	if (IS_ERR(cxlmd))
 		return PTR_ERR(cxlmd);
-- 
2.40.1