From: Miko Larsson <mikoxyzzz@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Miko Larsson <mikoxyzzz@gmail.com>,
linux-kbuild@vger.kernel.org, x86@kernel.org,
Nathan Chancellor <nathan@kernel.org>,
Vlastimil Babka <vbabka@suse.cz>,
Nick Desaulniers <ndesaulniers@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Sean Christopherson <seanjc@google.com>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
Arnd Bergmann <arnd@arndb.de>, Chris Down <chris@chrisdown.name>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
John Ogness <john.ogness@linutronix.de>,
Elliot Berman <quic_eberman@quicinc.com>,
Oleksandr Natalenko <oleksandr@redhat.com>
Subject: [PATCH 1/2] Kconfig: Mark -O3 as experimental
Date: Tue, 21 Jun 2022 15:35:25 +0200 [thread overview]
Message-ID: <20220621133526.29662-2-mikoxyzzz@gmail.com> (raw)
In-Reply-To: <20220621133526.29662-1-mikoxyzzz@gmail.com>
Mark -O3 as experimental, as it might cause unwanted regressions for
users.
Signed-off-by: Miko Larsson <mikoxyzzz@gmail.com>
---
init/Kconfig | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/init/Kconfig b/init/Kconfig
index c7900e897..9c292acb2 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1402,12 +1402,15 @@ config CC_OPTIMIZE_FOR_PERFORMANCE
helpful compile-time warnings.
config CC_OPTIMIZE_FOR_PERFORMANCE_O3
- bool "Optimize more for performance (-O3)"
+ bool "Optimize more for performance (-O3) (EXPERIMENTAL)"
depends on ARC
help
Choosing this option will pass "-O3" to your compiler to optimize
the kernel yet more for performance.
+ This option is EXPERIMENTAL; you may encounter compiler bugs and/or
+ kernel bugs with this option enabled.
+
config CC_OPTIMIZE_FOR_SIZE
bool "Optimize for size (-Os)"
help
--
2.36.1
next prev parent reply other threads:[~2022-06-21 13:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-21 13:35 [PATCH 0/2] Kconfig: -O3 enablement Miko Larsson
2022-06-21 13:35 ` Miko Larsson [this message]
2022-06-21 13:35 ` [PATCH 2/2] Kconfig: Allow -O3 for all architectures Miko Larsson
2022-06-21 16:16 ` [PATCH 0/2] Kconfig: -O3 enablement Nick Desaulniers
2022-06-22 1:57 ` Masahiro Yamada
2022-06-23 15:42 ` Miko Larsson
2022-06-23 15:44 ` Masahiro Yamada
2022-06-23 17:00 ` Miko Larsson
2022-06-23 17:15 ` Masahiro Yamada
2022-06-23 17:44 ` Miko Larsson
2022-06-23 17:27 ` Arnd Bergmann
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