From: Askar Safin <safinaskar@gmail.com>
To: thomas.weissschuh@linutronix.de
Cc: a.hindborg@kernel.org, alex.gaynor@gmail.com,
aliceryhl@google.com, bjorn3_gh@protonmail.com,
boqun.feng@gmail.com, dakr@kernel.org, gary@garyguo.net,
linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
lossin@kernel.org, nathan@kernel.org, nicolas.schier@linux.dev,
ojeda@kernel.org, rust-for-linux@vger.kernel.org,
tmgross@umich.edu
Subject: Re: [PATCH v2 6/6] kbuild: enable -Werror for hostprogs
Date: Sun, 5 Oct 2025 04:10:47 +0300 [thread overview]
Message-ID: <20251005011100.1035272-1-safinaskar@gmail.com> (raw)
In-Reply-To: <20250814-kbuild-werror-v2-6-c01e596309d2@linutronix.de>
"Thomas Weißschuh" <thomas.weissschuh@linutronix.de>:
> Enable -Werror unconditionally
Please, drop this patch.
Never enable -Werror unconditionally for any part of build.
I often bisect Linux. And to do this, I often need to build very old
Linux commits (with modern compiler). Unconditional -Werror will make
this impossible.
For example, recently I found this regression:
https://lore.kernel.org/regressions/197f290e30b.eaadc7bc7913.7315623184036672946@zohomail.com/T/#u
The regression caused by commits happened in 2019.
So to bisect it, I had to build 2019 trees using modern compiler.
--
Askar Safin
next prev parent reply other threads:[~2025-10-05 1:11 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-14 10:14 [PATCH v2 0/6] kbuild: enable CONFIG_WERROR for more build steps Thomas Weißschuh
2025-08-14 10:14 ` [PATCH v2 1/6] kbuild: align W=e with CONFIG_WERROR Thomas Weißschuh
2025-08-14 10:14 ` [PATCH v2 2/6] kbuild: unify W=e and CONFIG_WERROR Thomas Weißschuh
2025-08-14 10:14 ` [PATCH v2 3/6] kbuild: rust: move `-Dwarnings` handling to `Makefile.extrawarn` Thomas Weißschuh
2025-08-14 10:14 ` [PATCH v2 4/6] kbuild: respect CONFIG_WERROR for linker and assembler Thomas Weißschuh
2025-08-14 10:14 ` [PATCH v2 5/6] kbuild: respect CONFIG_WERROR for userprogs Thomas Weißschuh
2025-08-14 10:14 ` [PATCH v2 6/6] kbuild: enable -Werror for hostprogs Thomas Weißschuh
2025-08-14 12:10 ` Nicolas Schier
2025-08-14 18:30 ` Nathan Chancellor
2025-08-17 16:31 ` Miguel Ojeda
2025-08-18 17:45 ` Nathan Chancellor
2025-10-05 1:10 ` Askar Safin [this message]
2025-10-05 1:31 ` Sam James
2025-10-05 20:53 ` Nathan Chancellor
2025-10-06 10:20 ` Thomas Weißschuh
2025-10-06 11:27 ` Miguel Ojeda
2025-10-06 21:48 ` Nathan Chancellor
2025-08-14 19:11 ` [PATCH v2 0/6] kbuild: enable CONFIG_WERROR for more build steps Nathan Chancellor
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