linux-kernel - [PATCH 3/8] PCI: endpoint: Add an API for unregistering the EPF notifier

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Message-Id: <20220502060611.58987-4-manivannan.sadhasivam@linaro.org>
Date:   Mon,  2 May 2022 11:36:06 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     kishon@...com, lorenzo.pieralisi@....com, kw@...ux.com,
        bhelgaas@...gle.com, robh@...nel.org
Cc:     linux-pci@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH 3/8] PCI: endpoint: Add an API for unregistering the EPF notifier

Add "pci_epc_unregister_notifier()" to unregister the notifier added
between EPC and EPF.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---
 include/linux/pci-epc.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h
index a48778e1a4ee..c414a08bfd67 100644
--- a/include/linux/pci-epc.h
+++ b/include/linux/pci-epc.h
@@ -198,6 +198,12 @@ pci_epc_register_notifier(struct pci_epc *epc, struct notifier_block *nb)
 	return atomic_notifier_chain_register(&epc->notifier, nb);
 }
 
+static inline int
+pci_epc_unregister_notifier(struct pci_epc *epc, struct notifier_block *nb)
+{
+	return atomic_notifier_chain_unregister(&epc->notifier, nb);
+}
+
 struct pci_epc *
 __devm_pci_epc_create(struct device *dev, const struct pci_epc_ops *ops,
 		      struct module *owner);
-- 
2.25.1