Re: [PATCH] selftests: kvm: Fix a compile error in selftests/kvm/rseq_test.c

[JinrongLiang]

On 2022/9/8 00:54, Liam Merwick wrote:
> On 07/09/2022 17:01, Sean Christopherson wrote:
> > On Tue, Aug 02, 2022, Jinrong Liang wrote:
> > > From: Jinrong Liang <cloudliang@xxxxxxxxxxx>
> > >
> > > The following warning appears when executing:
> > >     make -C tools/testing/selftests/kvm
> > >
> > > rseq_test.c: In function ‘main’:
> > > rseq_test.c:237:33: warning: implicit declaration of function 
> > > ‘gettid’; did you mean ‘getgid’? [-Wimplicit-function-declaration]
> > >            (void *)(unsigned long)gettid());
> > >                                   ^~~~~~
> > >                                   getgid
> > > /usr/bin/ld: /tmp/ccr5mMko.o: in function `main':
> > > ../kvm/tools/testing/selftests/kvm/rseq_test.c:237: undefined 
> > > reference to `gettid'
> > > collect2: error: ld returned 1 exit status
> > > make: *** [../lib.mk:173: 
> > > ../kvm/tools/testing/selftests/kvm/rseq_test] Error 1
> > >
> > > Use the more compatible syscall(SYS_gettid) instead of gettid() to 
> > > fix it.
> > > More subsequent reuse may cause it to be wrapped in a lib file.
> > >
> > > Signed-off-by: Jinrong Liang <cloudliang@xxxxxxxxxxx>
> > > ---
> >
> > Reviewed-by: Sean Christopherson <seanjc@xxxxxxxxxx>
>
> Can a 'Cc: stable@xxxxxxxxxxxxxxx' be added also as e923b0537d28 got 
> backported to v5.15.58
>
> Reviewed-by: Liam Merwick <liam.merwick@xxxxxxxxxx>
>
>
> > Paolo, do you want to grab this for 6.0?  It doesn't look like we're 
> > going to have
> > a more elegant solution anytime soon...
Ping?