linux-kernel - Re: kernel/module_decompress.c:264:36: error: 'module_kset' undeclared; did you mean 'module

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Message-ID: <YgnEsbnHXiuanfY/@google.com>
Date:   Sun, 13 Feb 2022 18:55:45 -0800
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     kernel test robot <lkp@...el.com>, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Luis Chamberlain <mcgrof@...nel.org>
Subject: Re: kernel/module_decompress.c:264:36: error: 'module_kset'
 undeclared; did you mean 'module_use'?

On Sun, Feb 13, 2022 at 04:34:49PM -0800, Randy Dunlap wrote:
> 
> 
> On 2/13/22 08:57, kernel test robot wrote:
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head:   b81b1829e7e39f6cebdf6e4d5484eacbceda8554
> > commit: b1ae6dc41eaaa98bb75671e0f3665bfda248c3e7 module: add in-kernel support for decompressing
> > date:   5 weeks ago
> > config: sparc-randconfig-r005-20220213 (https://download.01.org/0day-ci/archive/20220214/202202140027.K0xZn3T2-lkp@intel.com/config)
> > compiler: sparc-linux-gcc (GCC) 11.2.0
> > 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=b1ae6dc41eaaa98bb75671e0f3665bfda248c3e7
> >         git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> >         git fetch --no-tags linus master
> >         git checkout b1ae6dc41eaaa98bb75671e0f3665bfda248c3e7
> >         # save the config file to linux build tree
> >         mkdir build_dir
> >         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sparc SHELL=/bin/bash
> 
> FTR/FYI:
> # CONFIG_SYSFS is not set

Ugh, why is this even a thing?

> 
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot <lkp@...el.com>
> > 
> > All errors (new ones prefixed by >>):
> > 
> >    kernel/module_decompress.c: In function 'module_decompress_sysfs_init':
> >>> kernel/module_decompress.c:264:36: error: 'module_kset' undeclared (first use in this function); did you mean 'module_use'?
> >      264 |         error = sysfs_create_file(&module_kset->kobj,
> >          |                                    ^~~~~~~~~~~
> >          |                                    module_use
> >    kernel/module_decompress.c:264:36: note: each undeclared identifier is reported only once for each function it appears in
> > 
> > 
> > vim +264 kernel/module_decompress.c
> > 
> >    259	
> >    260	static int __init module_decompress_sysfs_init(void)
> >    261	{
> >    262		int error;
> >    263	
> >  > 264		error = sysfs_create_file(&module_kset->kobj,
> > 
> > ---
> > 0-DAY CI Kernel Test Service, Intel Corporation
> > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
> 
> -- 
> ~Randy

Thanks.

-- 
Dmitry