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PCI: Remove obsolete comment reference to pci_pcie_cap2()

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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>
This commit is contained in:
Bjorn Helgaas 2013-08-27 11:10:02 -06:00
parent fbf501c347
commit 1b121c24dd
1 changed files with 6 additions and 4 deletions
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10
include/uapi/linux/pci_regs.h
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@ -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 */