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[220.244.72.10]) by smtp.gmail.com with ESMTPSA id 202sm13885595pfw.150.2021.08.30.00.19.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Aug 2021 00:19:27 -0700 (PDT) Date: Mon, 30 Aug 2021 17:19:22 +1000 From: Nicholas Piggin Subject: Re: [linux-next:master 2837/10638] powerpc64-linux-ld: warning: orphan section `.stubs' from `drivers/platform/chrome/cros_ec_trace.o' being placed in section `.stubs' To: Gwendal Grignou , kernel test robot Cc: Enric Balletbo i Serra , kbuild-all@lists.01.org, Linux Memory Management List , linuxppc-dev@lists.ozlabs.org References: <202108271745.fAmJos3o-lkp@intel.com> In-Reply-To: <202108271745.fAmJos3o-lkp@intel.com> MIME-Version: 1.0 Message-Id: <1630307703.t3ejpsx47s.astroid@bobo.none> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Authentication-Results: imf26.hostedemail.com; dkim=pass header.d=gmail.com header.s=20161025 header.b=SMgmBVdj; spf=pass (imf26.hostedemail.com: domain of npiggin@gmail.com designates 209.85.216.49 as permitted sender) smtp.mailfrom=npiggin@gmail.com; dmarc=pass (policy=none) header.from=gmail.com X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: A0EDA20019C6 X-Stat-Signature: wqasx3ahk1ocrjo9g7gk91ztad156f1j X-HE-Tag: 1630307968-794064 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Excerpts from kernel test robot's message of August 27, 2021 7:29 pm: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.g= it master > head: 88fac11862d38306dd0d2398015744877140390d > commit: d453ceb6549af8798913de6a20444cb7200fdb69 [2837/10638] platform/ch= rome: sensorhub: Add trace events for sample > config: powerpc64-randconfig-r021-20210827 (attached as .config) > compiler: powerpc64-linux-gcc (GCC) 11.2.0 > reproduce (this is a W=3D1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbi= n/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next= .git/commit/?id=3Dd453ceb6549af8798913de6a20444cb7200fdb69 > git remote add linux-next https://git.kernel.org/pub/scm/linux/ke= rnel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout d453ceb6549af8798913de6a20444cb7200fdb69 > # save the attached .config to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=3D$HOME/0day COMPILER=3Dgcc-11.2.0 make.cro= ss O=3Dbuild_dir ARCH=3Dpowerpc SHELL=3D/bin/bash >=20 > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot >=20 > All warnings (new ones prefixed by >>): >=20 >>> powerpc64-linux-ld: warning: orphan section `.stubs' from `drivers/plat= form/chrome/cros_ec_trace.o' being placed in section `.stubs' >>> powerpc64-linux-ld: warning: orphan section `.stubs' from `drivers/plat= form/chrome/cros_ec_trace.o' being placed in section `.stubs' >>> powerpc64-linux-ld: warning: orphan section `.stubs' from `drivers/plat= form/chrome/cros_ec_trace.o' being placed in section `.stubs' What creates .stubs? We have something in modules code which does but=20 not vmlinux code. I can't see anything in modern binutils linker that creates .stubs. And why is this particular file setting it off? Strange. Thanks, Nick