[prev in list] [next in list] [prev in thread] [next in thread] 

List:       linux-kernel
Subject:    Re: linux-next: Tree for Mar 31 (build failures and culprits)
From:       Stephen Rothwell <sfr () canb ! auug ! org ! au>
Date:       2015-03-31 23:42:33
Message-ID: 20150401104233.563d0022 () canb ! auug ! org ! au
[Download RAW message or body]

Hi Greg,

On Wed, 1 Apr 2015 01:07:49 +0200 Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote:
>
> On Tue, Mar 31, 2015 at 09:16:40AM -0700, Guenter Roeck wrote:
> >
> > alpha:allmodconfig
> > mips:allmodconfig
> > 
> > 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);
> > 
> > Looks like the kdbus example never worked for the affected architectures.
> > I don't build allmodconfig for all architectures, so other architectures
> > may be affected as well.
> 
> You need 3.17 kernel headers to have memfd_create, not much the kdbus
> test code can do about that.  You might want to update the kernel
> headers for these build boxes.
> 
> Or have we not hooked up memfd for alpha and mips?

alpha has no definition for __NR_memfd_create and doesn't use
asm-generic/unistd.h.

mips has a definition for __NR_memfd_create if _MIPS_SIM ==
_MIPS_SIM_ABI32, _MIPS_SIM_ABI64 or _MIPS_SIM_NABI32 (is there any
other alternative?).

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au

[Attachment #3 (application/pgp-signature)]
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[prev in list] [next in list] [prev in thread] [next in thread]