On Tue, Aug 27, 2019 at 05:43:43PM +0200, Greg Kroah-Hartman wrote:
> On Tue, Aug 27, 2019 at 05:20:36PM +0800, Gao Xiang wrote:
> > Hi Greg,
> > 
> > On Tue, Aug 27, 2019 at 09:58:02AM +0200, Greg Kroah-Hartman wrote:
> > > On Mon, Aug 26, 2019 at 11:21:19AM +0530, Viresh Kumar wrote:
> > > > On 25-08-19, 07:54, Greg Kroah-Hartman wrote:
> > > > > When these files originally got an SPDX tag, I used // instead of /* */
> > > > > for the .h files.  Fix this up to use // properly.
> > > > > 
> > > > > Cc: Viresh Kumar <vireshk@kernel.org>
> > > > > Cc: Johan Hovold <johan@kernel.org>
> > > > > Cc: Alex Elder <elder@kernel.org>
> > > > > Cc: greybus-dev@lists.linaro.org
> > > > > Cc: devel@driverdev.osuosl.org
> > > > > Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> > > > > ---
> > > > >  drivers/staging/greybus/firmware.h               | 2 +-
> > > > >  drivers/staging/greybus/gb-camera.h              | 2 +-
> > > > >  drivers/staging/greybus/gbphy.h                  | 2 +-
> > > > >  drivers/staging/greybus/greybus.h                | 2 +-
> > > > >  drivers/staging/greybus/greybus_authentication.h | 2 +-
> > > > >  drivers/staging/greybus/greybus_firmware.h       | 2 +-
> > > > >  drivers/staging/greybus/greybus_manifest.h       | 2 +-
> > > > >  drivers/staging/greybus/greybus_protocols.h      | 2 +-
> > > > >  drivers/staging/greybus/greybus_trace.h          | 2 +-
> > > > >  drivers/staging/greybus/hd.h                     | 2 +-
> > > > >  drivers/staging/greybus/interface.h              | 2 +-
> > > > >  drivers/staging/greybus/manifest.h               | 2 +-
> > > > >  drivers/staging/greybus/module.h                 | 2 +-
> > > > >  drivers/staging/greybus/operation.h              | 2 +-
> > > > >  drivers/staging/greybus/spilib.h                 | 2 +-
> > > > >  drivers/staging/greybus/svc.h                    | 2 +-
> > > > >  16 files changed, 16 insertions(+), 16 deletions(-)
> > > > 
> > > > Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> > > 
> > > Thanks for all of the acks!
> > > 
> > > greg k-h
> > 
> > I found similar issues of graybus when I tested the latest staging-testing
> > 
> > In file included from <command-line>:0:0:
> > ./include/linux/greybus/greybus_protocols.h:45:2: error: unknown type name ??????_le16??????
> >   __le16 size;  /* Size in bytes of header + payload */
> >   ^~~~~~
> > ./include/linux/greybus/greybus_protocols.h:46:2: error: unknown type name ??????_le16??????
> >   __le16 operation_id; /* Operation unique id */
> >   ^~~~~~
> > ./include/linux/greybus/greybus_protocols.h:47:2: error: unknown type name ??????_u8??????
> >   __u8 type;  /* E.g GB_I2C_TYPE_* or GB_GPIO_TYPE_* */
> >   ^~~~
> > ./include/linux/greybus/greybus_protocols.h:48:2: error: unknown type name ??????_u8??????
> >   __u8 result;  /* Result of request (in responses only) */
> >   ^~~~
> > ./include/linux/greybus/greybus_protocols.h:49:2: error: unknown type name ??????_u8??????
> >   __u8 pad[2];  /* must be zero (ignore when read) */
> >   ^~~~
> > ./include/linux/greybus/greybus_protocols.h:58:2: error: unknown type name ??????_u8??????
> >   __u8 phase;
> >   ^~~~
> > ./include/linux/greybus/greybus_protocols.h:88:2: error: unknown type name ??????_u8??????
> >   __u8 major;
> >   ^~~~
> > ./include/linux/greybus/greybus_protocols.h:89:2: error: unknown type name ??????_u8??????
> >   __u8 minor;
> >   ^~~~
> > ./include/linux/greybus/greybus_protocols.h:93:2: error: unknown type name ??????_u8??????
> >   __u8 major;
> >   ^~~~
> > ./include/linux/greybus/greybus_protocols.h:94:2: error: unknown type name ??????_u8??????
> >   __u8 minor;
> >   ^~~~
> > ./include/linux/greybus/greybus_protocols.h:98:2: error: unknown type name ??????_u8??????
> >   __u8 bundle_id;
> >   ^~~~
> > ./include/linux/greybus/greybus_protocols.h:102:2: error: unknown type name ??????_u8??????
> >   __u8 major;
> >   ^~~~
> > ./include/linux/greybus/greybus_protocols.h:103:2: error: unknown type name ??????_u8??????
> >   __u8 minor;
> >   ^~~~
> > ./include/linux/greybus/greybus_protocols.h:108:2: error: unknown type name ??????_le16??????
> >   __le16   size;
> >   ^~~~~~
> > ./include/linux/greybus/greybus_protocols.h:113:2: error: unknown type name ??????_u8??????
> >   __u8   data[0];
> >   ^~~~
> > ./include/linux/greybus/greybus_protocols.h:118:2: error: unknown type name ??????_le16??????
> >   __le16   cport_id;
> >   ^~~~~~
> > ./include/linux/greybus/greybus_protocols.h:122:2: error: unknown type name ??????_le16??????
> >   __le16   cport_id;
> > 
> > .. and other files...
> > 
> > Not very sure... but it seems it can be observed with allmodconfig or
> > CONFIG_KERNEL_HEADER_TEST=y and fail my compilation...
> > Hope that of some help (kind reminder...)
> 
> Ah, thank you so much for this, NOW that makes sense why I got that odd
> kbuild warning that I could not figure out.

Yeah, it seems KERNEL_HEADER_TEST is a new feature which aims at ensuring
kernel headers are self-contained... I think it can be observed by
  CONFIG_GREYBUS and CONFIG_KERNEL_HEADER_TEST are on

see commit 43c78d88036e ("kbuild: compile-test kernel headers to ensure they are self-contained")

> 
> Let me go fix this up, thank you so much.

You're welcome, I was just testing my previous patch after merging as well...

Thanks,
Gao Xiang

> 
> greg k-h