On Thu, Jan 22, 2015 at 12:54:53PM +0300, Dan Carpenter wrote:

On Thu, Jan 22, 2015 at 01:31:29AM -0800, Jeremiah Mahler wrote:

quoted

I wasn't able to reproduce the sparse warning.  Was it for a specific
architecture?  Perhaps include a link to the email sent by the kbuild
test robot.

You need to add a "CF=-D__CHECK_ENDIAN__" to turn these on.

make C=2 CF=-D__CHECK_ENDIAN__

http://lwn.net/Articles/205624/

regards,
dan carpenter

Even with __CHECK_ENDIAN__ I wasn't able to reproduce these errors
straight away because this fix is already in next.  But once reverted
they appeared and the patch does fix all of them.

  jeri@hudson:~/linux-next$ git checkout 2be7256fe7f
  jeri@hudson:~/linux-next$ git reset --hard HEAD~1
  jeri@hudson:~/linux-next$ make C=1 "CF=-D__CHECK_ENDIAN__"
  (errors ...)

-- 
- Jeremiah Mahler