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List:       linux-backports
Subject:    [PATCH 1/3] backports: Add return value to backport_pci_disable_link_state()
From:       Hauke Mehrtens <hauke () hauke-m ! de>
Date:       2019-11-16 18:36:21
Message-ID: 20191116183623.8858-1-hauke () hauke-m ! de
[Download RAW message or body]

Since Linux upstream commit 4cfd21885592 ("PCI: let
pci_disable_link_state propagate errors") The
backport_pci_disable_link_state() function can return an error. This
return code is now used by the mt76 driver.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
 backport/backport-include/linux/pci.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/backport/backport-include/linux/pci.h b/backport/backport-include/linux/pci.h
index 84c4e8f6..f0aacbf6 100644
--- a/backport/backport-include/linux/pci.h
+++ b/backport/backport-include/linux/pci.h
@@ -236,4 +236,13 @@ static inline struct pci_dev *pcie_find_root_port(struct pci_dev *dev)
 	(PCI_IRQ_LEGACY | PCI_IRQ_MSI | PCI_IRQ_MSIX)
 #endif
 
+#if LINUX_VERSION_IS_LESS(5,3,0)
+static inline int backport_pci_disable_link_state(struct pci_dev *pdev, int state)
+{
+	pci_disable_link_state(pdev, state);
+	return 0;
+}
+#define pci_disable_link_state LINUX_BACKPORT(pci_disable_link_state)
+#endif /* < 5.3 */
+
 #endif /* _BACKPORT_LINUX_PCI_H */
-- 
2.20.1

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