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Date:   Sun, 16 Jul 2023 17:02:23 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Nathan Chancellor <nathan@kernel.org>
Cc:     Sasha Levin <sashal@kernel.org>, stable@vger.kernel.org,
        llvm@lists.linux.dev, Masahiro Yamada <masahiroy@kernel.org>,
        Nick Desaulniers <ndesaulniers@google.com>
Subject: Re: Apply clang '--target=' KBUILD_CPPFLAGS shuffle to linux-6.4.y
 and linux-6.3.y
Message-ID: <2023071606-relative-facsimile-f994@gregkh>
References: <20230703150339.GA1975402@dev-arch.thelio-3990X>
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On Mon, Jul 03, 2023 at 08:03:39AM -0700, Nathan Chancellor wrote:
> Hi Greg and Sasha,
> 
> Please consider applying the following patches to 6.4 and 6.3, they
> should apply cleanly.
> 
> 08f6554ff90e ("mips: Include KBUILD_CPPFLAGS in CHECKFLAGS invocation")
> a7e5eb53bf9b ("powerpc/vdso: Include CLANG_FLAGS explicitly in ldflags-y")
> cff6e7f50bd3 ("kbuild: Add CLANG_FLAGS to as-instr")
> 43fc0a99906e ("kbuild: Add KBUILD_CPPFLAGS to as-option invocation")
> feb843a469fb ("kbuild: add $(CLANG_FLAGS) to KBUILD_CPPFLAGS")
> 
> They resolve and help avoid build breakage with tip of tree clang, which
> has become a little stricter in the flags that it will accept for a
> particular target, which requires '--target=' to be passed along to all
> invocations of $(CC). Our continuous integration does not currently show
> any breakage with 6.1 and earlier; should these patches be needed there,
> I will send them at a later time.

6.3.y is now end-of-life, but I've queued these up for 6.4.y, thanks.

greg k-h