From: Oleksandr Natalenko <oleksandr@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>,
Andrew Morton <akpm@linux-foundation.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jessica Yu <jeyu@kernel.org>, Tejun Heo <tj@kernel.org>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
Joel Fernandes <joel@joelfernandes.org>,
David Howells <dhowells@redhat.com>,
Patrick Bellasi <patrick.bellasi@arm.com>,
Krzysztof Kozlowski <krzk@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
"Eric W . Biederman" <ebiederm@xmission.com>
Subject: [PATCH 1/1] init/Kconfig: enable -O3 for all arches
Date: Wed, 11 Dec 2019 11:46:19 +0100 [thread overview]
Message-ID: <20191211104619.114557-2-oleksandr@redhat.com> (raw)
In-Reply-To: <20191211104619.114557-1-oleksandr@redhat.com>
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@redhat.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
prev parent reply other threads:[~2019-12-11 10:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-11 10:46 [PATCH 0/1] " Oleksandr Natalenko
2019-12-11 10:46 ` Oleksandr Natalenko [this message]
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