Hi, Can anyone explain this? maybe even suggest a fix for it? This has been around for a few weeks AFAIK. I haven't see a patch for it, but I could have missed it. (since 17e02586ed185 in August/2023; oh, that just fixed the move of files to the Documentation/arch/ subdir, so maybe even longer) In file Documentation/ABI/testing/sysfs-bus-papr-pmem: response to H_SCM_HEALTH hcall. The details of the bit flags returned in response to this hcall is available at 'Documentation/arch/powerpc/papr_hcalls.rst'. Below are the flags reported in this sysfs file: kernel-doc reports: linux-next-20231222/Documentation/ABI/testing/sysfs-bus-papr-pmem:2: WARNING: unknown document: '/powerpc/papr_hcalls' and the output file Documentation/output/admin-guide/abi-testing.html says: response to H_SCM_HEALTH hcall. The details of the bit flags returned in response to this hcall is available at '<span class="xref std std-doc">/powerpc/papr_hcalls</span>' . Below are the flags reported in this sysfs file:</p> so the leading "Documentation/arch" is being removed from the filename AFAICT. I tried changing the quoted filename from single quotes to double back quotes `` and I tried it without any quotes, all with the same results. -- #Randy