Re: [PATCH 2/2] checksyscalls: ignore kcmp system call

[Heiko Carstens]

On Fri, Sep 07, 2012 at 04:02:34PM +0400, Cyrill Gorcunov wrote:
> On Fri, Sep 07, 2012 at 01:31:31PM +0200, Heiko Carstens wrote:
> > Now that the checksyscalls script works again it will warn about the missing
> > "kcmp" system call on all architectures but x86.
> > Since according to git commit d97b46a6 "syscalls, x86: add __NR_kcmp syscall"
> > only x86 is currently supported don't emit any warning for this system call.
[...]
> > diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
> > index fd8fa9a..c7cda79 100755
> > --- a/scripts/checksyscalls.sh
> > +++ b/scripts/checksyscalls.sh
> > @@ -194,6 +194,9 @@ cat << EOF
> >  #define __IGNORE_getpmsg
> >  #define __IGNORE_putpmsg
> >  #define __IGNORE_vserver
> > +
> > +/* kcmp is currently x86 only */
> > +#define __IGNORE_kcmp

Ok, I wired the system call up on s390 and the test case passed.
Below is the patch that is needed to actually reach the system call from
other architectures than x86.
Andrew, can you pick this one up as well?

The code that wires the system call up on s390 will go upstream via the
s390 tree. Thanks to kcmp being a cond_syscall there is no compile
time dependency.