selftest/bpf, riscv: Improved cross-building support

[bjoto]

Pull request for series with
subject: selftest/bpf, riscv: Improved cross-building support
version: 1
url: https://patchwork.kernel.org/project/linux-riscv/list/?series=789912

[bjoto]

Upstream branch: 9f564b9
series: https://patchwork.kernel.org/project/linux-riscv/list/?series=789912
version: 1

Pull request is NOT updated. Failed to apply https://patchwork.kernel.org/project/linux-riscv/list/?series=789912
error message:

Cmd('git') failed due to: exit code(128)
  cmdline: git am -s --3way
  stdout: 'Applying: selftests/bpf: Add cross-build support for urandom_read et al
Patch failed at 0001 selftests/bpf: Add cross-build support for urandom_read et al
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".'
  stderr: 'error: sha1 information is lacking or useless (tools/testing/selftests/bpf/Makefile).
error: could not build fake ancestor
hint: Use 'git am --show-current-patch=diff' to see the failed patch'

conflict:

[bjoto]

At least one diff in series https://patchwork.kernel.org/project/linux-riscv/list/?series=789912 irrelevant now. Closing PR.