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drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12ca: function has unreachable instruction

From kbuild test robot <fengguang.wu@intel.com>
Newsgroups linux.kernel
Subject drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12ca: function has unreachable instruction
Date 2016-03-27 06:00 +0200
Message-ID <rha1P-2vS-1@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f55532a0c0b8bb6148f4e07853b876ef73bc69ca
commit: d4883d5d6b146fd65f762c462b2c6d4a327c7d50 objtool: Enable stack metadata validation on 64-bit x86
date:   4 weeks ago
config: x86_64-randconfig-r0-03270825 (attached as .config)
reproduce:
        git checkout d4883d5d6b146fd65f762c462b2c6d4a327c7d50
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

>> drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12ca: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12d1: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12db: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12de: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12e2: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12e6: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12e9: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12ec: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12ef: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12f1: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12f7: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12f9: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x12ff: function has unreachable instruction
   drivers/media/i2c/msp3400-kthreads.o: warning: objtool: msp3400c_set_audmode()+0x1304: function has unreachable instruction

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0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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drivers/media/i2c/msp3400-kthreads.o: warning: objtool:  msp3400c_set_audmode()+0x12ca: function has unreachable instruction kbuild test robot <fengguang.wu@intel.com> - 2016-03-27 06:00 +0200

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