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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id u3sm512394pfu.47.2020.12.02.10.56.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Dec 2020 10:56:45 -0800 (PST) Date: Wed, 2 Dec 2020 10:56:44 -0800 From: Kees Cook To: Masahiro Yamada Cc: Nick Desaulniers , Nathan Chancellor , Michal Marek , Russell King , Catalin Marinas , Will Deacon , Michael Ellerman , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , Arvind Sankar , LKML , Linux Kbuild mailing list , Linux ARM , linuxppc-dev , clang-built-linux , "kernelci . org bot" , Mark Brown Subject: Re: [PATCH v2 2/2] kbuild: Disable CONFIG_LD_ORPHAN_WARN for ld.lld 10.0.1 Message-ID: <202012021056.3EA0BBFDD@keescook> References: <20201113195553.1487659-1-natechancellor@gmail.com> <20201119204656.3261686-2-natechancellor@gmail.com> <202011241421.A2F3062A70@keescook> <202012011255.9D677ED3@keescook> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 02, 2020 at 11:37:38AM +0900, Masahiro Yamada wrote: > On Wed, Dec 2, 2020 at 5:56 AM Kees Cook wrote: > > > > On Tue, Dec 01, 2020 at 10:31:37PM +0900, Masahiro Yamada wrote: > > > On Wed, Nov 25, 2020 at 7:22 AM Kees Cook wrote: > > > > > > > > On Thu, Nov 19, 2020 at 01:13:27PM -0800, Nick Desaulniers wrote: > > > > > On Thu, Nov 19, 2020 at 12:57 PM Nathan Chancellor > > > > > wrote: > > > > > > > > > > > > ld.lld 10.0.1 spews a bunch of various warnings about .rela sections, > > > > > > along with a few others. Newer versions of ld.lld do not have these > > > > > > warnings. As a result, do not add '--orphan-handling=warn' to > > > > > > LDFLAGS_vmlinux if ld.lld's version is not new enough. > > > > > > > > > > > > Link: https://github.com/ClangBuiltLinux/linux/issues/1187 > > > > > > Link: https://github.com/ClangBuiltLinux/linux/issues/1193 > > > > > > Reported-by: Arvind Sankar > > > > > > Reported-by: kernelci.org bot > > > > > > Reported-by: Mark Brown > > > > > > Reviewed-by: Kees Cook > > > > > > Signed-off-by: Nathan Chancellor > > > > > > > > > > Thanks for the additions in v2. > > > > > Reviewed-by: Nick Desaulniers > > > > > > > > I'm going to carry this for a few days in -next, and if no one screams, > > > > ask Linus to pull it for v5.10-rc6. > > > > > > > > Thanks! > > > > > > > > -- > > > > Kees Cook > > > > > > > > > Sorry for the delay. > > > Applied to linux-kbuild. > > > > Great, thanks! > > > > > But, I already see this in linux-next. > > > Please let me know if I should drop it from my tree. > > > > My intention was to get this to Linus this week. Do you want to do that > > yourself, or Ack the patches in my tree and I'll send it? > > I will send a kbuild pull request myself this week. Okay, thanks! I've removed it from my -next tree now. -- Kees Cook