selftests/bpf: Test narrow load from bpf_sysctl.write
There are tests for full and narrows loads from bpf_sysctl.file_pos, but for bpf_sysctl.write only full load is tested. Add the missing test. Suggested-by:Andrey Ignatov <rdna@fb.com> Signed-off-by:
Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by:
Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Andrey Ignatov <rdna@fb.com> Link: https://lore.kernel.org/bpf/20191029143027.28681-1-iii@linux.ibm.com
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15ab09bd
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