Re: [PATCH 00/16] x86, crypto: remove always-defined CONFIG_AS_* and cosolidate Kconfig/Makefiles

From: Ingo Molnar <mingo@kernel.org>
To: Masahiro Yamada <masahiroy@kernel.org>
Cc: linux-doc@vger.kernel.org, NeilBrown <neilb@suse.de>,
	dri-devel@lists.freedesktop.org,
	"H . Peter Anvin" <hpa@zytor.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Jonathan Corbet <corbet@lwn.net>,
	x86@kernel.org, Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	intel-gfx@lists.freedesktop.org, linux-crypto@vger.kernel.org,
	Yuanhan Liu <yuanhan.liu@linux.intel.com>,
	Kees Cook <keescook@chromium.org>,
	linux-kbuild@vger.kernel.org, David Airlie <airlied@linux.ie>,
	Borislav Petkov <bp@alien8.de>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com,
	Jim Kukunas <james.t.kukunas@linux.intel.com>,
	"David S . Miller" <davem@davemloft.net>
Subject: Re: [PATCH 00/16] x86, crypto: remove always-defined CONFIG_AS_* and cosolidate Kconfig/Makefiles
Date: Wed, 25 Mar 2020 05:59:40 +0100	[thread overview]
Message-ID: <20200325045940.GA24974@gmail.com> (raw)
In-Reply-To: <20200324084821.29944-1-masahiroy@kernel.org>

* Masahiro Yamada <masahiroy@kernel.org> wrote:

> This series of cleanups was prompted by Linus:
> https://lkml.org/lkml/2020/3/12/726
> 
> First, this series drop always-on CONFIG_AS_* options.
> Some of those options were introduced in old days.
> For example, the check for CONFIG_AS_CFI dates back to 2006.
> 
> We raise the minimal tool versions from time to time.
> Currently, we require binutils 2.21
> (and we plan to bump it to 2.23 for v5.7-rc1).
> 
> After cleaning away the old checks,
> as-instr calls are moved to Kconfig from Makefiles.
> (patch 11)
> 
> This allows more Kconfig / Makefile cleanups.
> Patch 12 is complex, but I double-checked it does the equivalent.
> 
> Patch 14 bumps the binutils version to 2.23,
> and patch 15 removes more CONFIG_AS_* options.
> 
> I folded all relevanet patches into this series,
> as suggested by Jason A. Donenfeld.
> 
> If x86 maintainers take care of this series, that's good.
> 
> If it is OK to queue this up to Kbuild tree,
> I will send a pull request to Linus.
> 
> Thank you.

LGTM. I've got these four from Jason A. Donenfeld queued up in 
tip:WIP.x86/asm:

 bd5b1283e41c: ("crypto: Curve25519 - do not pollute dispatcher based on assembler")
 829f32d78588: ("crypto: X86 - rework configuration, based on Kconfig")
 95ef9f80ed63: ("x86/build: Probe assembler from Kconfig instead of Kbuild")
 1651e700664b: ("x86: Fix bitops.h warning with a moved cast")

I suppose these might interact (maybe even conflict), and are topically 
related.

Would you like to pull these into the kbuild tree? You can find them in:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/asm

Thanks,

	Ingo
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