On 4/4/15 16:26, Greg KH wrote: > On Sat, Apr 04, 2015 at 06:17:23AM +0800, Chen Gang wrote: >> Quite a few of architures (e.g. blackfin, cris, frv ...) do not support >> memfd_create system call which is used in prime_new(). So define a dummy >> one. >> >> The related error (with allmodconfig under blackfin): >> >> CC [M] samples/kfifo/inttype-example.o >> samples/kdbus/kdbus-workers.c: In function ‘prime_new’: >> samples/kdbus/kdbus-workers.c:930:18: error: ‘__NR_memfd_create’ >> undeclared (first use in this function) >> p->fd = syscall(__NR_memfd_create, "prime-area", MFD_CLOEXEC); >> ^ >> samples/kdbus/kdbus-workers.c:930:18: note: each undeclared identifier is >> reported only once for each function it appears in >> make[2]: *** [samples/kdbus/kdbus-workers] Error 1 >> >> Signed-off-by: Chen Gang <[email protected]> >> --- >> samples/kdbus/kdbus-workers.c | 11 +++++++++++ >> 1 file changed, 11 insertions(+) > > As Richard said, please hook up these syscalls to those architectures. > Don't you want to use the feature there? Why hasn't it been added yet? >
OK, thanks. I shall try to finish blackfin within this month. And try the other archs within next month. Thanks. -- Chen Gang Open, share, and attitude like air, water, and life which God blessed -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
