linux-kernel - Re: arch/powerpc/kexec/relocate_32.o: warning: objtool: .text+0x2bc: unannotated intra-function call

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Message-ID: <61cd5edb-3cce-823b-d3c5-affd1d898a9e@linux.ibm.com>
Date:   Wed, 17 May 2023 14:06:24 +0530
From:   Sathvika Vasireddy <sv@...ux.ibm.com>
To:     kernel test robot <lkp@...el.com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Michael Ellerman <mpe@...erman.id.au>,
        "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Sathvika Vasireddy <sv@...ux.ibm.com>
Subject: Re: arch/powerpc/kexec/relocate_32.o: warning: objtool: .text+0x2bc:
 unannotated intra-function call

Hi all,

On 5/16/23 11:19, kernel test robot wrote:
> Hi Sathvika,
>
> First bad commit (maybe != root cause):
>
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   f1fcbaa18b28dec10281551dfe6ed3a3ed80e3d6
> commit: c984aef8c8326035570ff6e01d0ff9e79a5dfa76 objtool/powerpc: Add --mcount specific implementation
> date:   6 months ago
> config: powerpc-randconfig-r006-20230516 (https://download.01.org/0day-ci/archive/20230516/202305161316.4TNTsLUj-lkp@intel.com/config)
> compiler: powerpc-linux-gcc (GCC) 12.1.0
> reproduce (this is a W=1 build):
>          wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>          chmod +x ~/bin/make.cross
>          # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c984aef8c8326035570ff6e01d0ff9e79a5dfa76
>          git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>          git fetch --no-tags linus master
>          git checkout c984aef8c8326035570ff6e01d0ff9e79a5dfa76
>          # save the config file
>          mkdir build_dir && cp config build_dir/.config
>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/
>
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@...el.com>
> | Link: https://lore.kernel.org/oe-kbuild-all/202305161316.4TNTsLUj-lkp@intel.com/
>
> All warnings (new ones prefixed by >>):
>
>>> arch/powerpc/kexec/relocate_32.o: warning: objtool: .text+0x2bc: unannotated intra-function call

Please find link to a patch that addresses the above reported warning: 
https://lore.kernel.org/linuxppc-dev/20221215115258.80810-1-sv@linux.ibm.com/. 
This patch still applies cleanly atop powerpc/merge branch and I don't 
see the warning anymore.

Thanks,
Sathvika