[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Sat, 4 Apr 2015 10:26:26 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Chen Gang <xili_gchen_5257@...mail.com>
Cc: daniel@...que.org, dh.herrmann@...glemail.com, tixxdz@...ndz.org,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: samples: kdbus: kdbus-workers: Define dummy prime_new()
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 <gang.chen.5i5j@...il.com>
> ---
> 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?
thanks,
greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists