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[134.134.136.100]) by mx.google.com with ESMTPS id b9si43371859pla.275.2019.05.01.15.01.53 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 01 May 2019 15:01:53 -0700 (PDT) Received-SPF: pass (google.com: domain of yu-cheng.yu@intel.com designates 134.134.136.100 as permitted sender) client-ip=134.134.136.100; Authentication-Results: mx.google.com; spf=pass (google.com: domain of yu-cheng.yu@intel.com designates 134.134.136.100 as permitted sender) smtp.mailfrom=yu-cheng.yu@intel.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 May 2019 15:01:52 -0700 X-ExtLoop1: 1 Received: from yyu32-desk1.sc.intel.com ([143.183.136.147]) by orsmga002.jf.intel.com with ESMTP; 01 May 2019 15:01:49 -0700 Message-ID: <1c69263279be0b2f6582e58a0bf28bc213d94693.camel@intel.com> Subject: Re: [PATCH] binfmt_elf: Extract .note.gnu.property from an ELF file From: Yu-cheng Yu To: Matthew Wilcox Cc: x86@kernel.org, "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, Arnd Bergmann , Andy Lutomirski , Balbir Singh , Cyrill Gorcunov , Dave Hansen , Eugene Syromiatnikov , Florian Weimer , "H.J. Lu" , Jann Horn , Jonathan Corbet , Kees Cook , Mike Kravetz , Nadav Amit , Oleg Nesterov , Pavel Machek , Peter Zijlstra , Randy Dunlap , "Ravi V. Shankar" , Vedvyas Shanbhogue , Dave Martin Date: Wed, 01 May 2019 14:54:23 -0700 In-Reply-To: <20190501213709.GD28500@bombadil.infradead.org> References: <20190501211217.5039-1-yu-cheng.yu@intel.com> <20190501213709.GD28500@bombadil.infradead.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.1-2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit 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: On Wed, 2019-05-01 at 14:37 -0700, Matthew Wilcox wrote: > On Wed, May 01, 2019 at 02:12:17PM -0700, Yu-cheng Yu wrote: > > +++ b/fs/Kconfig.binfmt > > @@ -35,6 +35,10 @@ config COMPAT_BINFMT_ELF > > config ARCH_BINFMT_ELF_STATE > > bool > > > > +config ARCH_USE_GNU_PROPERTY > > + bool > > + depends on 64BIT > > I don't think this is right. I think you should get rid of the depends line > and instead select the symbol from each of argh64 and x86 Kconfig files. That makes sense. Thanks! Yu-cheng