Re: [PATCH] staging: android: ashmem: Add support for 32bit ashmemcalls in a 64bit kernel

[Serban Constantinescu]

On 05/03/13 08:37, Greg KH wrote:
> On Mon, Feb 25, 2013 at 06:44:36PM +0000, Serban Constantinescu wrote:
> > Android's shared memory subsystem, Ashmem, does not support calls from a
> > 32bit userspace in a 64 bit kernel. This patch adds support for syscalls
> > coming from a 32bit userspace in a 64bit kernel.
> >
> > The patch has been successfully tested on ARMv8 AEM(64bit
> > platform model) and Versatile Express A9(32bit platform).
> >
> > Signed-off-by: Serban Constantinescu <serban.constantinescu@xxxxxxx>
> > Acked-by: Arve HjÃnnevÃg <arve@xxxxxxxxxxx>
> > Acked-by: John Stultz <john.stultz@xxxxxxxxxx>
>
> This patch breaks the build on my machine:
> drivers/staging/android/ashmem.c: In function âcompat_ashmem_ioctlâ:
> drivers/staging/android/ashmem.c:711:7: error: âcompat_size_tâ undeclared (first use in this function)
> drivers/staging/android/ashmem.c:711:7: note: each undeclared identifier is reported only once for each function it appears in

When building for x86_64 we need <linux/compat.h>. Sorry I forgot it, 
should build fine now.

> so of course, I can't take it :(

Thanks,
Serban

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