On Wed, Nov 22, 2017 at 4:24 AM, 冯锐 <[email protected]> wrote:
> Dear all:
>
> I checked the file ".config", I found " CONFIG_MMC_REALTEK_USB=y " but its 
> dependence MISC_RTSX_USB is not selected, so compile errors occurred.
> What should I do to fix it?

The problem is this bit in the Makefile:

--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -55,6 +55,7 @@ obj-$(CONFIG_CXL_BASE)                += cxl/
 obj-$(CONFIG_ASPEED_LPC_CTRL)  += aspeed-lpc-ctrl.o
 obj-$(CONFIG_ASPEED_LPC_SNOOP) += aspeed-lpc-snoop.o
 obj-$(CONFIG_PCI_ENDPOINT_TEST)        += pci_endpoint_test.o
+obj-$(CONFIG_MISC_RTSX_PCI)    += cardreader/

 lkdtm-$(CONFIG_LKDTM)          += lkdtm_core.o
 lkdtm-$(CONFIG_LKDTM)          += lkdtm_bugs.o

I would suggest changing this to CONFIG_MISC_RTSX, and adding that symbol like

config MISC_RTSX
         tristate
         default MISC_RTSX_PCI || MISC_RTSX_USB

Then we enter the directory if one of the two gets selected.

You could also use "obj-y   += cardreader/" in the Makefile, but I
think the extra
symbol is a bit nicer, as it avoids entering the subdirectory when we
don't need it.

      Arnd

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