linux-kernel - Re: [PATCH 05/11] tools headers: Sync arm64 headers with the kernel source

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Message-ID: <20250827081252.GD745921@e132581.arm.com>
Date: Wed, 27 Aug 2025 09:12:52 +0100
From: Leo Yan <leo.yan@....com>
To: Namhyung Kim <namhyung@...nel.org>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ian Rogers <irogers@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>, LKML <linux-kernel@...r.kernel.org>,
	linux-perf-users@...r.kernel.org,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 05/11] tools headers: Sync arm64 headers with the kernel
 source

On Mon, Aug 25, 2025 at 02:58:57PM -0700, Namhyung Kim wrote:

[...]

> But the following two changes cannot be applied since they introduced
> new build errors in util/arm-spe.c.  So it still has the warning after
> this change.
> 
>   c8c2647e69bedf80 arm64: Make  _midr_in_range_list() an exported function
>   e3121298c7fcaf48 arm64: Modify _midr_range() functions to read MIDR/REVIDR internally

Hi Namhyung,

Thanks for working on this. It is on our todo list for automatic
generating MIDR. Sorry for any troubling during the syncing.

Just a minor comment below.

[...]

> +struct target_impl_cpu {
> +	u64 midr;
> +	u64 revidr;
> +	u64 aidr;
> +};
> +
> +bool cpu_errata_set_target_impl(u64 num, void *impl_cpus);
> +

Currently, no one uses this API. It seems to me that we don't need to
sync this code chunk.

Otherwise, other changes LGTM.

Thanks,
Leo