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.
Liam pointed the same in [1]
Thanks, Harshit
[1] https://lore.kernel.org/all/fdfb143a-45c4-aaff-aa95-d20c076ff555@oracle.com/