linux-kernel - [PATCH 1/1] init/Kconfig: enable -O3 for all arches

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Message-Id: <20191211104619.114557-2-oleksandr@redhat.com>
Date:   Wed, 11 Dec 2019 11:46:19 +0100
From:   Oleksandr Natalenko <oleksandr@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jessica Yu <jeyu@...nel.org>, Tejun Heo <tj@...nel.org>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        David Howells <dhowells@...hat.com>,
        Patrick Bellasi <patrick.bellasi@....com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        "Eric W . Biederman" <ebiederm@...ssion.com>
Subject: [PATCH 1/1] init/Kconfig: enable -O3 for all arches

Building a kernel with -O3 may help in hunting bugs like [1] and thus
using this switch should not be restricted to one specific arch only.

With that, lets expose it for everyone.

[1] https://lore.kernel.org/lkml/673b885183fb64f1cbb3ed2387524077@natalenko.name/

Signed-off-by: Oleksandr Natalenko <oleksandr@...hat.com>
---
 init/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/init/Kconfig b/init/Kconfig
index a34064a031a5..b41b18edb10e 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1228,7 +1228,6 @@ config CC_OPTIMIZE_FOR_PERFORMANCE
 
 config CC_OPTIMIZE_FOR_PERFORMANCE_O3
 	bool "Optimize more for performance (-O3)"
-	depends on ARC
 	imply CC_DISABLE_WARN_MAYBE_UNINITIALIZED  # avoid false positives
 	help
 	  Choosing this option will pass "-O3" to your compiler to optimize
-- 
2.24.1