linux-kernel - [PATCH 4.9 041/101] PCI: Add defines for normal and subtractive PCI bridges

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Date:   Tue, 23 Aug 2022 10:03:14 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Pali Rohár <pali@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Naresh Kamboju <naresh.kamboju@...aro.org>,
        Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH 4.9 041/101] PCI: Add defines for normal and subtractive PCI bridges

From: Pali Rohár <pali@...nel.org>

commit 904b10fb189cc15376e9bfce1ef0282e68b0b004 upstream.

Add these PCI class codes to pci_ids.h:

  PCI_CLASS_BRIDGE_PCI_NORMAL
  PCI_CLASS_BRIDGE_PCI_SUBTRACTIVE

Use these defines in all kernel code for describing PCI class codes for
normal and subtractive PCI bridges.

[bhelgaas: similar change in pci-mvebu.c]
Link: https://lore.kernel.org/r/20220214114109.26809-1-pali@kernel.org
Signed-off-by: Pali Rohár <pali@...nel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Guenter Roeck <linux@...ck-us.net>a
Cc: Naresh Kamboju <naresh.kamboju@...aro.org>
[ gregkh - take only the pci_ids.h portion for stable backports ]
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 include/linux/pci_ids.h |    2 ++
 1 file changed, 2 insertions(+)

--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -55,6 +55,8 @@
 #define PCI_CLASS_BRIDGE_EISA		0x0602
 #define PCI_CLASS_BRIDGE_MC		0x0603
 #define PCI_CLASS_BRIDGE_PCI		0x0604
+#define PCI_CLASS_BRIDGE_PCI_NORMAL		0x060400
+#define PCI_CLASS_BRIDGE_PCI_SUBTRACTIVE	0x060401
 #define PCI_CLASS_BRIDGE_PCMCIA		0x0605
 #define PCI_CLASS_BRIDGE_NUBUS		0x0606
 #define PCI_CLASS_BRIDGE_CARDBUS	0x0607