On Wed, 7 Oct 2009 06:07:44 -0700 Greg KH <gregkh@xxxxxxx> wrote: > On Wed, Oct 07, 2009 at 04:24:58PM +0530, Kamalesh Babulal wrote: > > Hi Greg, > > > > next-20091007 randconfig build breaks on s390x with build error > > > > drivers/staging/comedi/comedi_fops.c: In function 'comedi_mmap': > > drivers/staging/comedi/comedi_fops.c:1453: error: 'PAGE_SHARED' undeclared (first use in this function) > > drivers/staging/comedi/comedi_fops.c:1453: error: (Each undeclared identifier is reported only once > > drivers/staging/comedi/comedi_fops.c:1453: error: for each function it appears in.) > > make[3]: *** [drivers/staging/comedi/comedi_fops.o] Error 1 > > Odd. What changed in the header files to cause this? The problem has always been present, only now did randconfig find it. The compile breaks because PAGE_SHARED is not defined for s390. The equivalent define for s390 is PAGE_RW. The problem has not shown up so far because all drivers who use the remap_pfn_range call with PAGE_SHARED has dependencies not available on s390, e.g. CONFIG_PCI. To fix this I see are two options: 1) add a PAGE_SHARED define to arch/s390/include/asm/pgtable.h, 2) make comedi depend on !S390. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin. -- 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
