linux-kernel - Re: [PATCH v2 02/18] mm/ksw: add ksw

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Message-ID: <aLlD-74aBdb-ZD5K@kernel.org>
Date: Thu, 4 Sep 2025 10:47:07 +0300
From: Mike Rapoport <rppt@...nel.org>
To: Jinchao Wang <wangjinchao600@...il.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	"Naveen N . Rao" <naveen@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
	"H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	"Liang, Kan" <kan.liang@...ux.intel.com>,
	David Hildenbrand <david@...hat.com>,
	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
	"Liam R. Howlett" <Liam.Howlett@...cle.com>,
	Vlastimil Babka <vbabka@...e.cz>,
	Suren Baghdasaryan <surenb@...gle.com>,
	Michal Hocko <mhocko@...e.com>, linux-perf-users@...r.kernel.org,
	linux-mm@...ck.org, linux-trace-kernel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 02/18] mm/ksw: add ksw_config struct and parser

On Thu, Sep 04, 2025 at 08:20:59AM +0800, Jinchao Wang wrote:
> Add struct ksw_config and ksw_parse_config() to parse user string.
> 
> Update `Makefile` to pass compilation.
> 
> Signed-off-by: Jinchao Wang <wangjinchao600@...il.com>
> ---
>  mm/kstackwatch/Makefile      |  2 ++
>  mm/kstackwatch/kernel.c      | 70 +++++++++++++++++++++++++++++++++++-
>  mm/kstackwatch/kstackwatch.h | 34 ++++++++++++++++++
>  3 files changed, 105 insertions(+), 1 deletion(-)
> 
> diff --git a/mm/kstackwatch/Makefile b/mm/kstackwatch/Makefile
> index 84a46cb9a766..d422f0e114dd 100644
> --- a/mm/kstackwatch/Makefile
> +++ b/mm/kstackwatch/Makefile
> @@ -1,2 +1,4 @@
>  obj-$(CONFIG_KSTACK_WATCH)	+= kstackwatch.o
>  kstackwatch-y := kernel.o stack.o watch.o
> +
> +CFLAGS_kernel.o := -Wno-error=unused-function

Can't you just add the function along with the code that uses it?

-- 
Sincerely yours,
Mike.