On Sat, Sep 22, 2012 at 02:20:46PM +0100, Russell King wrote:

2. There allegedly exists a patch to remove x86isms from sys_kcmp -
   allegedly also in akpm's tree.  However, I've looked through the code in
   mainline, and nothing stands out.  Ralf Beachle also said yesterday that
   he has looked through from the MIPS PoV and also can't see any x86isms,
   so we're both thinking that it should merely have the x86 dependency
   removed.

3. Until the x86 dependency is gone (that depends on what akpm proposes to
   do with the patches he's allegedly sitting on), non-x86 arches can only
   reserve the syscall, and add an IGNORE for it.

There is a weak definition provided in kernel/sys_ni.c so it actually can
be properly wired up in preparation for the day when the dependency in
Kconfig gets fixed.

It would be good to at least get checksyscalls.sh fixed so arch maintainers
get their warnings for new syscalls back.

Indeed.  That script has become just too important.

  Ralf