[PATCH 0/2] Kconfig: -O3 enablement

[Miko Larsson]

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@xxxxxxxxxx/

Cc: linux-kbuild@xxxxxxxxxxxxxxx
Cc: x86@xxxxxxxxxx
Cc: Nathan Chancellor <nathan@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Cc: Sean Christopherson <seanjc@xxxxxxxxxx>
Cc: "Gustavo A. R. Silva" <gustavoars@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Chris Down <chris@xxxxxxxxxxxxxx>
Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Cc: John Ogness <john.ogness@xxxxxxxxxxxxx>
Cc: Elliot Berman <quic_eberman@xxxxxxxxxxx>
Cc: Oleksandr Natalenko <oleksandr@xxxxxxxxxx>

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

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

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2.36.1