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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 0/2] Kconfig: -O3 enablement
Date: Tue, 21 Jun 2022 15:35:24 +0200	[thread overview]
Message-ID: <20220621133526.29662-1-mikoxyzzz@gmail.com> (raw)

Hi,

This very small series allows -O3 to be used for all architectures. The
first patch marks -O3 as experimental, with the reasoning being that it
might expose unwanted regressions to users, and the second patch
actually allows -O3 by removing the "depend on ARC" string.

The reasoning behind this series is to open up -O3 so that bugs related
to it (both compiler-related and kernel-related) can be discovered by
eyeballs wanting to improve the "-O3 experience," as that might be
beneficial to both compilers and the kernel. This has been attempted
before [1], but unfortunately nothing ever came of it.

[1] https://lore.kernel.org/lkml/20191211104619.114557-1-oleksandr@redhat.com/

Cc: linux-kbuild@vger.kernel.org
Cc: x86@kernel.org
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Sean Christopherson <seanjc@google.com>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Chris Down <chris@chrisdown.name>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Elliot Berman <quic_eberman@quicinc.com>
Cc: Oleksandr Natalenko <oleksandr@redhat.com>

Miko Larsson (2):
  Kconfig: Mark -O3 as experimental
  Kconfig: Allow -O3 for all architectures

 init/Kconfig | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

-- 
2.36.1


             reply	other threads:[~2022-06-21 13:37 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-21 13:35 Miko Larsson [this message]
2022-06-21 13:35 ` [PATCH 1/2] Kconfig: Mark -O3 as experimental Miko Larsson
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
2022-06-24 18:29 Linus Torvalds
     [not found] ` <CA+55aFyugRmHNV1BbhB_YHf3mgaiU6ND_KL8bu0PPEaRVNwWHg@mail.gmail.com>
2022-06-24 18:38   ` Linus Torvalds

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