linux/drivers/eisa
Yinghai Lu 2cfda637e2 EISA/PCI: Fix bus res reference
Matthew found that 3.8.3 is having problems with an old (ancient)
PCI-to-EISA bridge, the Intel 82375. It worked with the 3.2 kernel.
He identified the 82375, but doesn't assign the struct resource *res
pointer inside the struct eisa_root_device, and panics.

pci_eisa_init() was using bus->resource[] directly instead of
pci_bus_resource_n().  The bus->resource[] array is a PCI-internal
implementation detail, and after commit 45ca9e97 (PCI: add helpers for
building PCI bus resource lists) and commit 0efd5aab (PCI: add struct
pci_host_bridge_window with CPU/bus address offset), bus->resource[] is not
used for PCI root buses any more.

The 82375 is a subtractive-decode PCI device, so handle it the same
way we handle PCI-PCI bridges in subtractive-decode mode in
pci_read_bridge_bases().

[bhelgaas: changelog]
Reported-by: Matthew Whitehead <mwhitehe@redhat.com>
Tested-by: Matthew Whitehead <mwhitehe@redhat.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org	# v3.3+
2013-04-01 11:48:59 -06:00
..
.gitignore
eisa-bus.c eisa: fix coding style for eisa bus code 2010-03-06 11:26:32 -08:00
eisa.ids eisa: Fix spelling of "asynchronous". 2012-11-19 14:30:25 +01:00
Kconfig x86: allow more than 8 cpus to be used on 32-bit 2009-01-30 00:20:22 +01:00
Makefile
pci_eisa.c EISA/PCI: Fix bus res reference 2013-04-01 11:48:59 -06:00
virtual_root.c eisa: remove driver_data direct access of struct device 2009-06-15 21:30:26 -07:00