The musb code currently kills the SH randconfig build (and this will hose any platform that also selects HAVE_CLK -- a PPC or AVR32 randconfig would have also hit this eventually), as can be seen here: http://kisskb.ellerman.id.au/kisskb/buildresult/41095/ This initial failure comes from the fact that musb handily uses "special" I/O routines that it handily wraps, after having failed at grepping for other users. Why this driver isn't using ioread/writeXX_rep() is beyond me, as that's the portable interface we have for doing precisely this sort of thing, without this bizarre PIO/MMIO wrapper munging that isn't even going to work on most platforms. With that ifdef in place, it's on to the next integral build failure: drivers/usb/musb/musb_core.c: In function 'fifo_setup': drivers/usb/musb/musb_core.c:1122: error: 'MUSB_C_RAM_BITS' undeclared (first use in this function) drivers/usb/musb/musb_core.c:1122: error: (Each undeclared identifier is reported only once drivers/usb/musb/musb_core.c:1122: error: for each function it appears in.) drivers/usb/musb/musb_core.c: In function 'ep_config_from_table': drivers/usb/musb/musb_core.c:1246: error: 'MUSB_C_RAM_BITS' undeclared (first use in this function) drivers/usb/musb/musb_core.c: In function 'musb_remove': drivers/usb/musb/musb_core.c:2131: warning: unused variable 'ctrl_base' make[1]: *** [drivers/usb/musb/musb_core.o] Error 1 make: *** [drivers/usb/musb/musb_core.o] Error 2 ... $ git grep MUSB_C_RAM_BITS drivers/usb/musb drivers/usb/musb/musb_core.c:#define DYN_FIFO_SIZE (1<<(MUSB_C_RAM_BITS+2)) drivers/usb/musb/tusb6010.h:#define MUSB_C_RAM_BITS 12 ... the comment above MUSB_C_RAM_BITS seems to suggest that it's entirely dependent on the chip, so moving it in to musb_core.c wouldn't be terribly productive. Which leaves us in a situation where the core is dependent on arbitrary driver definitions, while the driver itself is obviously only dependent on the core. Has anyone actually tested this with TUSB6010 support disabled? A quick grep suggests that blackfin is also going to get bitten by this, so simply tossing a depends on (ARM && BROKEN) in wouldn't help matters either. --- diff --git a/drivers/usb/musb/musb_io.h b/drivers/usb/musb/musb_io.h index 6bbedae..d0f812a 100644 --- a/drivers/usb/musb/musb_io.h +++ b/drivers/usb/musb/musb_io.h @@ -37,7 +37,7 @@ #include <linux/io.h> -#ifndef CONFIG_ARM +#if !defined(CONFIG_ARM) && !defined(CONFIG_SUPERH) static inline void readsl(const void __iomem *addr, void *buf, int len) { insl((unsigned long)addr, buf, len); } static inline void readsw(const void __iomem *addr, void *buf, int len) -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
