linux-kernel - [PATCH v3 9/9] dmaengine: idxd: Refactor remove call with idxd

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Message-ID: <20250309062058.58910-10-xueshuai@linux.alibaba.com>
Date: Sun,  9 Mar 2025 14:20:58 +0800
From: Shuai Xue <xueshuai@...ux.alibaba.com>
To: vinicius.gomes@...el.com,
	dave.jiang@...el.com,
	Markus.Elfring@....de,
	fenghuay@...dia.com,
	vkoul@...nel.org
Cc: xueshuai@...ux.alibaba.com,
	dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v3 9/9] dmaengine: idxd: Refactor remove call with idxd_cleanup() helper

The idxd_cleanup() helper cleans up perfmon, interrupts, internals and
so on. Refactor remove call with the idxd_cleanup() helper to avoid code
duplication. Note, this also fixes the missing put_device() for idxd
groups, enginces and wqs.

Fixes: bfe1d56091c1 ("dmaengine: idxd: Init and probe for Intel data accelerators")
Cc: stable@...r.kernel.org
Suggested-by: Vinicius Costa Gomes <vinicius.gomes@...el.com>
Signed-off-by: Shuai Xue <xueshuai@...ux.alibaba.com>
---
 drivers/dma/idxd/init.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
index ecb8d534fac4..22b411b470be 100644
--- a/drivers/dma/idxd/init.c
+++ b/drivers/dma/idxd/init.c
@@ -1310,7 +1310,6 @@ static void idxd_shutdown(struct pci_dev *pdev)
 static void idxd_remove(struct pci_dev *pdev)
 {
 	struct idxd_device *idxd = pci_get_drvdata(pdev);
-	struct idxd_irq_entry *irq_entry;
 
 	idxd_unregister_devices(idxd);
 	/*
@@ -1323,21 +1322,12 @@ static void idxd_remove(struct pci_dev *pdev)
 	get_device(idxd_confdev(idxd));
 	device_unregister(idxd_confdev(idxd));
 	idxd_shutdown(pdev);
-	if (device_pasid_enabled(idxd))
-		idxd_disable_system_pasid(idxd);
 	idxd_device_remove_debugfs(idxd);
-
-	irq_entry = idxd_get_ie(idxd, 0);
-	free_irq(irq_entry->vector, irq_entry);
-	pci_free_irq_vectors(pdev);
+	idxd_cleanup(idxd);
 	pci_iounmap(pdev, idxd->reg_base);
-	if (device_user_pasid_enabled(idxd))
-		idxd_disable_sva(pdev);
-	pci_disable_device(pdev);
-	destroy_workqueue(idxd->wq);
-	perfmon_pmu_remove(idxd);
 	put_device(idxd_confdev(idxd));
 	idxd_free(idxd);
+	pci_disable_device(pdev);
 }
 
 static struct pci_driver idxd_pci_driver = {
-- 
2.39.3