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

[JinrongLiang <ljr.kernel@gmail.com>]

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@tencent.com>
>>>
>>> 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@tencent.com>
>>> ---
>>
>> Reviewed-by: Sean Christopherson <seanjc@google.com>
>>
> 
> Can a 'Cc: stable@vger.kernel.org' be added also as e923b0537d28 got 
> backported to v5.15.58
> 
> Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
> 
> 
>>
>> 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?