From: Nathan Chancellor <nathan@kernel.org>
To: Luis Augenstein <luis.augenstein@tngtech.com>
Cc: nsc@kernel.org, linux-kbuild@vger.kernel.org,
linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
gregkh@linuxfoundation.org, kstewart@linuxfoundation.org,
maximilian.huber@tngtech.com
Subject: Re: [PATCH 1/1] kbuild: record real-prereqs in .cmd files
Date: Mon, 24 Aug 2026 23:22:42 -0400 [thread overview]
Message-ID: <20260825032242.GA1218443@ax162> (raw)
In-Reply-To: <1efb52b4-1a78-4c4e-aea1-6c8b426a8538@tngtech.com>
On Fri, Aug 21, 2026 at 09:57:03PM +0200, Luis Augenstein wrote:
> True, some Make prerequisites also appear in deps_*, so the filter
> dropped them from make_prereqs_* on incremental builds.
>
> However, we cannot just remove the filter. After the .cmd is included,
> $(real-prereqs) contains $(deps_$@), so the whole deps_* list would
> show up in make_prereqs_* on a rebuild.
Ah, makes sense.
> We could move the filter into fixdep and filter based on the new .d file, so
> the overlap is removed already on a clean build.
If this is not that complicated, I would not mind seeing what it looked
like.
--
Cheers,
Nathan
prev parent reply other threads:[~2026-08-25 3:22 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-14 11:21 [PATCH 0/1] kbuild: record real-prereqs in .cmd files Luis Augenstein
2026-08-14 11:21 ` [PATCH 1/1] " Luis Augenstein
2026-08-18 19:51 ` Nathan Chancellor
2026-08-21 19:57 ` Luis Augenstein
2026-08-25 3:22 ` Nathan Chancellor [this message]
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