This is basically a v2 of Stephen's patches [1,2].
I split them up into smaller patches because we're removing some PCIe 3.0
functionality (ID-Based Ordering, Optimized Buffer Flush/Fill, and Latency
Tolerance Reporting) that people might care about, and splitting it makes
that more visible and easier to add back in the future.
I kept pci_sriov_migration() and sriov_migration(). I think we could and
should remove these, but they were added by 74bb1bcc7dbb ("PCI: handle
SR-IOV Virtual Function Migration"), and I think we probably could revert
that commit entirely. I just got tired of poking at this, so I left that
for somebody more interested.
pci_request_region_exclusive() and pci_request_regions_exclusive() were
added by e8de1481fd71 ("resource: allow MMIO exclusivity for device
drivers"). This series removes them but keeps the rest of that commit,
including pci_request_selected_regions_exclusive() and some other stuff.
e8de1481fd71 was for debugging a bad memory corruption, and e1000e is the
only user I see. I'm not sure it's worth keeping all that stuff just for
one driver. But again, I got tired of fiddling with this, so I just kept
Stephen's patch removing the obvious parts.
I left pci_cfg_space_size() global because it is used by powerpc and sparc.
I also left pci_find_next_ext_capability() global and exported. It is used
internally and is also the only way for drivers to find capabilities that
can occur multiple times (though admittedly nones use it today).
I intend to merge this or an updated version for v3.14. It's currently on
my pci/cleanup branch [3].
Bjorn
[1] http://lkml.kernel.org/r/20131227132734.2aa9bc16@xxxxxxxxxxxxxxxxxxxxxxxxxxx
[2] http://lkml.kernel.org/r/20131227132710.7190647c@xxxxxxxxxxxxxxxxxxxxxxxxxxx
[3] http://git.kernel.org/cgit/linux/kernel/git/helgaas/pci.git/log/?h=pci/cleanup
---
Bjorn Helgaas (2):
PCI: Reorder pci.h so actual interfaces come before stubs
PCI: Cleanup pci.h whitespace
Stephen Hemminger (10):
PCI: Removed unused parts of Page Request Interface support
PCI: Remove unused Latency Tolerance Reporting support
PCI: Remove unused Optimized Buffer Flush/Fill support
PCI: Remove unused ID-Based Ordering support
PCI: Remove unused exclusive region support
PCI: Remove unused pci_vpd_truncate()
PCI: Remove unused pcie_aspm_enabled()
PCI: Remove unused pci_renumber_slot()
PCI: Remove unused alloc_pci_dev()
PCI: Make local functions static
drivers/pci/access.c | 24 ---
drivers/pci/ats.c | 82 ---------
drivers/pci/hotplug/pciehp.h | 1
drivers/pci/hotplug/pciehp_core.c | 2
drivers/pci/pci.c | 336 +++----------------------------------
drivers/pci/pci.h | 2
drivers/pci/pcie/aspm.c | 12 -
drivers/pci/probe.c | 117 ++++++-------
drivers/pci/slot.c | 26 ---
include/linux/pci-ats.h | 17 --
include/linux/pci.h | 129 +++-----------
11 files changed, 114 insertions(+), 634 deletions(-)
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