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Date:   Sat, 14 Jan 2023 10:49:34 +0100
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Cc:     stable@vger.kernel.org, pbonzini@redhat.com, shuah@kernel.org,
        kvm@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
        Darren Kenny <darren.kenny@oracle.com>,
        Liam Merwick <liam.merwick@oracle.com>
Subject: Re: 5.15.y backport request to fix compilation error in selftests/kvm
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On Fri, Jan 13, 2023 at 03:32:25PM +0530, Harshit Mogalapalli wrote:
> Hi,
> 
> On arm machine we have a compilation error while building
> tools/testing/selftests/kvm/ with LTS 5.15.y kernel
> 
> rseq_test.c: In function ‘main’:
> rseq_test.c:236:33: warning: implicit declaration of function ‘gettid’; did
> you mean ‘getgid’? [-Wimplicit-function-declaration]
>           (void *)(unsigned long)gettid());
>                                  ^~~~~~
>                                  getgid
> /tmp/cc4Wfmv2.o: In function `main':
> /home/test/linux/tools/testing/selftests/kvm/rseq_test.c:236: undefined
> reference to `gettid'
> collect2: error: ld returned 1 exit status
> make: *** [../lib.mk:151:
> /home/test/linux/tools/testing/selftests/kvm/rseq_test] Error 1
> make: Leaving directory '/home/test/linux/tools/testing/selftests/kvm'
> 
> 
> This is fixed by commit 561cafebb2cf97b0927b4fb0eba22de6200f682e upstream.
> Kernel version to apply: 5.15.y LTS
> 
> Could we please backport the above fix onto 5.15.y LTS. It applies cleanly
> and the kvm selftests compile properly after applying the patch.

Now queued up, thanks.

greg k-h