ubuntu_ltp_kernel_misc compilation error on bionic kernels

[Cory Todd]

While testing bionic:linux-kvm-4.15.0-1127.132 the test appears to have failed due to a compilation issue with autotest client:

12:34:41 DEBUG| [stdout] make -C /lib/modules/4.15.0-1127-kvm/build M=/home/ubuntu/autotest/client/tmp/ubuntu_ltp_kernel_misc/src/ltp/testcases/kernel/device-drivers/tbio/tbio_kernel
12:34:44 DEBUG| [stdout] CC [M] /home/ubuntu/autotest/client/tmp/ubuntu_ltp_kernel_misc/src/ltp/testcases/kernel/device-drivers/tbio/tbio_kernel/ltp_tbio.o
12:34:44 ERROR| [stderr] /home/ubuntu/autotest/client/tmp/ubuntu_ltp_kernel_misc/src/ltp/testcases/kernel/device-drivers/tbio/tbio_kernel/ltp_tbio.c: In function ‘send_request’:
12:34:44 ERROR| [stderr] /home/ubuntu/autotest/client/tmp/ubuntu_ltp_kernel_misc/src/ltp/testcases/kernel/device-drivers/tbio/tbio_kernel/ltp_tbio.c:82:7: error: implicit declaration of function ‘blk_make_request’; did you mean ‘blk_end_request’? [-Werror=implicit-function-declaration]
12:34:44 ERROR| [stderr] rq = blk_make_request(q, bio, GFP_KERNEL);
12:34:44 ERROR| [stderr] ^~~~~~~~~~~~~~~~
12:34:44 ERROR| [stderr] blk_end_request
12:34:44 ERROR| [stderr]

... (repeated for a many files)

This also appears to affect bionic:linux-aws-5.4-1085.91~18.04.1

[Cory Todd (corytodd)]

The api this test is relying on was removed from upstream linux

4613c5f1df92 (2016-07-19) scsi/osd: open code blk_make_request

so this has been broken for a long time. Only now know this because of the new sut deploy failure detection feature. We've been manually marking this test as passed for as long as I can find historical data for.

The upstream linux-test-project has (ltp) has commit

b1bbd738e "tbio/ltp_tbio.c: Change the order of calling blk_cleanup_queue() and del_gendisk()"

which acknowledges that this will not compile.

Would it be appropriate to blacklist this test case instead of adding hints at this point?