This adds pci_find_next_ext_capability(), analogous to
pci_find_next_capability(), which allows drivers to iterate through
multiple capabilities of the same type.
Many devices include multiple Vendor-Specific extended capabilities, for
example:
00:00.0 Host bridge: Intel Corporation Sandy Bridge DMI2 (rev 06)
Capabilities: [100 v1] Vendor Specific Information: ID=0002 Rev=0 Len=00c <?>
Capabilities: [144 v1] Vendor Specific Information: ID=0004 Rev=1 Len=03c <?>
Capabilities: [1d0 v1] Vendor Specific Information: ID=0003 Rev=1 Len=00a <?>
Capabilities: [280 v1] Vendor Specific Information: ID=0004 Rev=2 Len=018 <?>
---
Bjorn Helgaas (2):
PCI: add pci_find_next_ext_capability()
PCI: add Vendor-Specific Extended Capability header info
drivers/pci/pci.c | 40 ++++++++++++++++++++++++++++++----------
include/linux/pci.h | 3 +--
include/linux/pci_regs.h | 6 ++++++
3 files changed, 37 insertions(+), 12 deletions(-)
--
Bjorn
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