net:rps_default_mask.sh in ubuntu_kernel_selftests failed with 6.5 kernel

[Po-Hsu Lin]

Issue found on J-oem-6.5.0-1006.6 and J-aws-6.5.0-1008.8~22.04.1 with bare-metal testing nodes.

Test failed with:
 Running 'make run_tests -C net TEST_PROGS=rps_default_mask.sh TEST_GEN_PROGS='' TEST_CUSTOM_PROGS='''
 make: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/net'
 TAP version 13
 1..1
 # timeout set to 0
 # selftests: net: rps_default_mask.sh
 # empty rps_default_mask ./rps_default_mask.sh: 36: [: Illegal number: 00000000,00000000,00000000,00000000,00000000,00000000
 # [fail] expected 0 found 00000000,00000000,00000000,00000000,00000000,00000000
 # changing rps_default_mask dont affect existing devices ./rps_default_mask.sh: 36: [: Illegal number: 00000000,00000000,00000000,00000000,00000000,00000000
 # [fail] expected 00000000,00000000,00000000,00000000,00000000,00000000 found 00000000,00000000,00000000,00000000,00000000,00000000
 # changing rps_default_mask dont affect existing netns ./rps_default_mask.sh: 36: [: Illegal number: 00000000,00000000,00000000,00000000,00000000,00000000
 # [fail] expected 0 found 00000000,00000000,00000000,00000000,00000000,00000000
 # changing rps_default_mask affect newly created devices ./rps_default_mask.sh: 36: [: Illegal number: 00000000,00000000,00000000,00000000,00000000,00000003
 # [fail] expected 3 found 00000000,00000000,00000000,00000000,00000000,00000003
 # changing rps_default_mask don't affect newly child netns[II]./rps_default_mask.sh: 36: [: Illegal number: 00000000,00000000,00000000,00000000,00000000,00000000
 # [fail] expected 0 found 00000000,00000000,00000000,00000000,00000000,00000000
 # rps_default_mask is 0 by default in child netns ./rps_default_mask.sh: 36: [: Illegal number: 00000000,00000000,00000000,00000000,00000000,00000000
 # [fail] expected 0 found 00000000,00000000,00000000,00000000,00000000,00000000
 # changing rps_default_mask in child ns don't affect the main one./rps_default_mask.sh: 36: [: Illegal number: 00000000,00000000,00000000,00000000,00000000,00000000
 # [fail] expected 00000000,00000000,00000000,00000000,00000000,00000000 found 00000000,00000000,00000000,00000000,00000000,00000000
 # changing rps_default_mask in child ns affects new childns devices./rps_default_mask.sh: 36: [: Illegal number: 00000000,00000000,00000000,00000000,00000000,00000001
 # [fail] expected 1 found 00000000,00000000,00000000,00000000,00000000,00000001
 # changing rps_default_mask in child ns don't affect existing devices./rps_default_mask.sh: 36: [: Illegal number: 00000000,00000000,00000000,00000000,00000000,00000000
 # [fail] expected 0 found 00000000,00000000,00000000,00000000,00000000,00000000
 not ok 1 selftests: net: rps_default_mask.sh # exit=1

This is not a regression, as it's the first time we test J-AWS-6.5. And for J-oem-6.5 this test exists since 6.5.0-1002.2, but it will be skipped on openstack VM. Because of an outage in Intel lab, we did not test this kernel with bare-metal until recent cycle with 6.5.0-1005.5 (1004 this test was aborted due to deployment failure)