PCI/DPC: Read RP PIO Log Size once at probe

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The RP PIO Log Size is a read-only field in the DPC Capability, so it is
constant and known at probe-time, but previously we read it every time we
processed an RP PIO error.

Read it once in dpc_probe() (if the RP Extensions for DPC are supported)
and remember the size in struct dpc_dev.  No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>

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Bjorn Helgaas 2018-01-25 12:49:27 -06:00 • committed by Bjorn Helgaas

parent be3039a392

commit e3c44b8ddc

1 changed files with 16 additions and 13 deletions

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drivers/pci/pcie/pcie-dpc.c

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