These are almost all just cleanups.
The only behavior change I intend is this: If a port does not support
the "RP Extensions for DPC" and it reports an "RP PIO error", we
previously read the RP PIO log registers. I don't know if that's a
legal situation, but I couldn't find an explicit prohibition in the
spec.
Anyway, the rest is all cleanups and simplifications that are not
intended to change any behavior.
These are currently on my pci/dpc branch.
Changes from v1 to v2:
- Split up the "Consolidate RP PIO get/print functions" patch to
make it more reviewable. The resulting git diff is empty except
for a trival local variable declaration.
---
Bjorn Helgaas (14):
PCI/DPC: Rename interrupt_event_handler() to dpc_work()
PCI/DPC: Add local variable for DPC capability offset
PCI/DPC: Rename struct dpc_dev.rp to rp_extensions
PCI/DPC: Read RP PIO Log Size once at probe
PCI/DPC: Process RP PIO details only if RP PIO extensions supported
PCI/DPC: Squash dpc_rp_pio_print_tlp_header() into dpc_rp_pio_print_error()
PCI/DPC: Rename local "status" to "dpc_status"
PCI/DPC: Make RP PIO log size check more generic
PCI/DPC: Squash dpc_rp_pio_print_error() into dpc_rp_pio_get_info()
PCI/DPC: Push dpc->rp_pio_status assignment into dpc_rp_pio_get_info()
PCI/DPC: Remove unnecessary RP PIO register structs
PCI/DPC: Squash dpc_rp_pio_get_info() into dpc_process_rp_pio_error()
PCI/DPC: Add and use DPC Status register field definitions
PCI/DPC: Reformat DPC register definitions
drivers/pci/pcie/pcie-dpc.c | 214 +++++++++++++++--------------------------
include/uapi/linux/pci_regs.h | 24 ++---
2 files changed, 91 insertions(+), 147 deletions(-)
