rt2x00: rt2x00pci: fix build error on Ralink RT3x5x SoCs

The rt2800pci driver supports the built-in wireless
MAC of the Ralink RT3x5x SoCs. However building the
driver for these SoCs leads to the following error:

    LD      init/built-in.o
  drivers/built-in.o: In function `rt2800pci_rxdone_tasklet':
  <...>/drivers/net/wireless/rt2x00/rt2800pci.c:1012: undefined reference to `rt2x00pci_rxdone'
  drivers/built-in.o:(.rodata+0x4780): undefined reference to `rt2x00pci_initialize'
  drivers/built-in.o:(.rodata+0x4784): undefined reference to `rt2x00pci_uninitialize'
  drivers/built-in.o:(.rodata+0x47bc): undefined reference to `rt2x00pci_flush_queue'
  drivers/built-in.o:(.rodata+0x4818): undefined reference to `rt2x00pci_regbusy_read'
  make[5]: *** [vmlinux] Error 1

The missing functions are provided by the rt2x00pci
module. This module is only selected by the rt2800pci
driver if PCI support is enabled in the kernel, because
some parts of the rt2x00pci code depends on PCI support.

PCI support is not available on the RT3x5x SoCs because
those have no PCI host controller at all.

Move the non PCI specific code from rt2x00pci into a
separate module. This makes it possible to use that
code even if PCI support is disabled. The affected
functions are used by all of the rt2x00 PCI drivers
so select the new module for those drivers.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig
index 2bf4efa33186..76cd47eb901e 100644
--- a/drivers/net/wireless/rt2x00/Kconfig
+++ b/drivers/net/wireless/rt2x00/Kconfig
@@ -20,6 +20,7 @@ if RT2X00
 config RT2400PCI
         tristate "Ralink rt2400 (PCI/PCMCIA) support"
         depends on PCI
+        select RT2X00_LIB_MMIO
         select RT2X00_LIB_PCI
         select EEPROM_93CX6
         ---help---
@@ -31,6 +32,7 @@ config RT2400PCI
 config RT2500PCI
         tristate "Ralink rt2500 (PCI/PCMCIA) support"
         depends on PCI
+        select RT2X00_LIB_MMIO
         select RT2X00_LIB_PCI
         select EEPROM_93CX6
         ---help---
@@ -43,6 +45,7 @@ config RT61PCI
         tristate "Ralink rt2501/rt61 (PCI/PCMCIA) support"
         depends on PCI
         select RT2X00_LIB_PCI
+        select RT2X00_LIB_MMIO
         select RT2X00_LIB_FIRMWARE
         select RT2X00_LIB_CRYPTO
         select CRC_ITU_T
@@ -57,6 +60,7 @@ config RT2800PCI
         tristate "Ralink rt27xx/rt28xx/rt30xx (PCI/PCIe/PCMCIA) support"
         depends on PCI || SOC_RT288X || SOC_RT305X
         select RT2800_LIB
+        select RT2X00_LIB_MMIO
         select RT2X00_LIB_PCI if PCI
         select RT2X00_LIB_SOC if SOC_RT288X || SOC_RT305X
         select RT2X00_LIB_FIRMWARE
@@ -185,6 +189,9 @@ endif
 config RT2800_LIB
         tristate
 
+config RT2X00_LIB_MMIO
+        tristate
+
 config RT2X00_LIB_PCI
         tristate
         select RT2X00_LIB