Re: [PATCH] arm64: perf: Fix the userspace counter example link

[sashiko-bot@kernel.org]

> Documentation/arch/arm64/perf.rst points at
> tools/perf/arch/arm64/tests/user-events.c, in the text and in the link
> target, but the file does not exist: no file of that name is in
> tools/perf/arch/arm64/tests/, and no commit in the history leading to
> this base has added one.
> 
> The userspace register access described in this section is covered by
> the "User space counter reading of instructions" and "User space
> counter reading of cycles" cases in tools/perf/tests/mmap-basic.c.
> That file is the only in-tree userspace test that walks the core PMUs,
> pins the test task to each PMU's CPUs, and selects the PMU by its type
> number when the kernel accepts the extended type.
> 
> perf test -v user runs the four cases in that file; the two reading
> cases ask for user access through config1.
> 
> Point the text and the link target at that file.
> 
> make htmldocs does not fetch external links, so a plain documentation
> build does not report it, but make linkcheckdocs does.  I checked that
> the old link target returns 404 and the new one returns 200.  No kernel
> was built.
> 
> The edit and this changelog were written with the help of an LLM
> assistant (Hermes Agent).  I reviewed the diff and the reasoning, and I
> am responsible for the submission.
> 
> Fixes: aa1005d15d2a ("Documentation: arm64: Document PMU counters access from userspace")
> Signed-off-by: TAKANO Mitsuhiro <takano32@gmail.com>

Sashiko has reviewed this patch and found no issues.

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Sashiko AI review · https://sashiko.dev/#/patchset/20261106234541.1474324-1-takano32@gmail.com?part=1