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

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Message-ID: <YgwVy598bcqbaHtb@google.com>
Date:   Tue, 15 Feb 2022 13:06:19 -0800
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Luis Chamberlain <mcgrof@...nel.org>
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        kernel test robot <lkp@...el.com>, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: Re: kernel/module_decompress.c:264:36: error: 'module_kset'
 undeclared; did you mean 'module_use'?

On Mon, Feb 14, 2022 at 11:36:20PM -0800, Luis Chamberlain wrote:
> On Sun, Feb 13, 2022 at 06:55:45PM -0800, Dmitry Torokhov wrote:
> > 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 the kconfig supports it we need to support it. If you think
> we need to remove the option to be built-in we can take that
> up separately. In the meantime it would be wonderful if you
> can address this issue for Linus' tree.

Yes, of course, I was just wondering why we still have option to disable
sysfs. I guess some very purpose-built embedded systems might still
function without it...

-- 
Dmitry