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authorBjorn Helgaas <bhelgaas@google.com>2013-08-27 21:10:02 +0400
committerBjorn Helgaas <bhelgaas@google.com>2013-08-28 21:28:10 +0400
commit1b121c24dd4a9bb7156f10c7da3f39515a9fa6f0 (patch)
tree3a93414987bf0ae4b71162c7565b68e6068dbc52 /include
parentfbf501c347b2eea8451a615bd823b6b91a1a8eed (diff)
downloadlinux-1b121c24dd4a9bb7156f10c7da3f39515a9fa6f0.tar.xz
PCI: Remove obsolete comment reference to pci_pcie_cap2()
pci_pcie_cap2() was replaced by pcie_capability_read_word() and similar functions, so update the comment. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/pci_regs.h10
1 files changed, 6 insertions, 4 deletions
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index 5bb33f485271..591bb3b2ee4a 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -544,10 +544,12 @@
#define PCI_EXP_RTSTA_PME 0x10000 /* PME status */
#define PCI_EXP_RTSTA_PENDING 0x20000 /* PME pending */
/*
- * Note that the following PCI Express 'Capability Structure' registers
- * were introduced with 'Capability Version' 0x2 (v2). These registers
- * do not exist on devices with Capability Version 1. Use pci_pcie_cap2()
- * to use these fields safely.
+ * The Device Capabilities 2, Device Status 2, Device Control 2,
+ * Link Capabilities 2, Link Status 2, Link Control 2,
+ * Slot Capabilities 2, Slot Status 2, and Slot Control 2 registers
+ * are only present on devices with PCIe Capability version 2.
+ * Use pcie_capability_read_word() and similar interfaces to use them
+ * safely.
*/
#define PCI_EXP_DEVCAP2 36 /* Device Capabilities 2 */
#define PCI_EXP_DEVCAP2_ARI 0x20 /* Alternative Routing-ID */