linux-kernel - Re: [PATCH v2] kbuild: check the minimum compiler version in Kconfig

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Message-ID: <20210114164920.GA258518@ubuntu-m3-large-x86>
Date:   Thu, 14 Jan 2021 09:49:20 -0700
From:   Nathan Chancellor <natechancellor@...il.com>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     Ilie Halip <ilie.halip@...il.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Paul Gortmaker <paul.gortmaker@...driver.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Will Deacon <will@...nel.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] kbuild: check the minimum compiler version in Kconfig

On Thu, Jan 14, 2021 at 06:20:15PM +0900, Masahiro Yamada wrote:
> BTW, when I tried ICC a few years ago,
> I could not build the kernel with it.

Looking at the history behind include/linux/compiler-intel.h, the last
time I see a change that actually references building a kernel with icc
was 503cf95c061a ("x86, build, icc: Remove uninitialized_var() from
compiler-intel.h"), all the way back in 2013. Since then, there do not
appear to be any meaningful changes; every change is basically doing
something for clang or gcc and not wanting to leave icc behind. It might
be worth considering tearing it out.

Cheers,
Nathan