media: usb: b2c2: Kconfig: add PCI dependancy to DVB_B2C2_FLEXCOP_USB

DVB_B2C2_FLEXCOP_USB need depend on PCI, or can not pass compiling with allmodconfig for h8300.

The related error:

drivers/media/usb/b2c2/flexcop-usb.c: In function 'flexcop_usb_transfer_exit':
drivers/media/usb/b2c2/flexcop-usb.c:393:3: error: implicit declaration of function 'pci_free_consistent' [-Werror=implicit-function-declaration]

     pci_free_consistent(NULL,
     ^
  drivers/media/usb/b2c2/flexcop-usb.c: In function 'flexcop_usb_transfer_init':
  drivers/media/usb/b2c2/flexcop-usb.c:410:2: error: implicit declaration of function 'pci_alloc_consistent' [-Werror=implicit-function-declaration]
    fc_usb->iso_buffer = pci_alloc_consistent(NULL,
    ^
  drivers/media/usb/b2c2/flexcop-usb.c:410:21: warning: assignment makes pointer from integer without a cast [enabled by default]
    fc_usb->iso_buffer = pci_alloc_consistent(NULL,
                       ^

cc1: some warnings being treated as errors

---
 drivers/media/usb/b2c2/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

index 17d3583..06fdf30 100644
@@ -1,6 +1,6 @@
 config DVB_B2C2_FLEXCOP_USB
 	tristate "Technisat/B2C2 Air/Sky/Cable2PC USB"
-	depends on DVB_CORE && I2C
+	depends on DVB_CORE && I2C && PCI
 	help
 	  Support for the Air/Sky/Cable2PC USB1.1 box (DVB/ATSC) by Technisat/B2C2,
 

1.7.7.6

Hmm... maybe it is a good idea, but I am just trying another ways.

Just now, I find that the module which calls pci*consistent() may not be pci dependent module (e.g. may depend on ISA or EISA instead of).

So "arch/h8300/include/asm/pci.h" has related issues, I am just fixing.

Maybe our case is not an issue, after "asm/pci.h" fixed (although for our case only, it can be improved, too, and if you are sure about it, please help improving it, thanks).

Thanks.

Chen Gang

Hi (sending again due to HTML-nonsense in Mail),

Instead of selecting PCI we could/should use usb_alloc_coherent() and usb_free_cohrerent(), shouldn't we?

--
Patrick