netdev - Re: [net-next:main 4/19] WARNING: modpost: vmlinux: section mismatch in reference: bitmap_copy_clear_tail+0x58 (section: .text.unlikely) -> __setup_str_initcall

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Message-ID: <ZfL4amLH5W9Zc_MS@smile.fi.intel.com>
Date: Thu, 14 Mar 2024 15:15:22 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Yujie Liu <yujie.liu@...el.com>
Cc: kernel test robot <lkp@...el.com>, jcmvbkbc@....gnu.org,
	oe-kbuild-all@...ts.linux.dev, netdev@...r.kernel.org,
	Herve Codina <herve.codina@...tlin.com>
Subject: Re: [net-next:main 4/19] WARNING: modpost: vmlinux: section mismatch
 in reference: bitmap_copy_clear_tail+0x58 (section: .text.unlikely) ->
 __setup_str_initcall_blacklist (section: .init.rodata)

On Thu, Mar 14, 2024 at 05:41:02PM +0800, Yujie Liu wrote:
> Hi Andy,
> 
> On Wed, Mar 13, 2024 at 09:22:13PM +0200, Andy Shevchenko wrote:
> > On Tue, Mar 12, 2024 at 10:29:16AM +0800, kernel test robot wrote:
> > > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git main
> > > head:   f095fefacdd35b4ea97dc6d88d054f2749a73d07
> > > commit: de5f84338970815b9fdd3497a975fb572d11e0b5 [4/19] lib/bitmap: Introduce bitmap_scatter() and bitmap_gather() helpers
> > > config: xtensa-randconfig-001-20240311 (https://download.01.org/0day-ci/archive/20240312/202403121032.WDY8ftKq-lkp@intel.com/config)
> > > compiler: xtensa-linux-gcc (GCC) 13.2.0
> > > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240312/202403121032.WDY8ftKq-lkp@intel.com/reproduce)
> > > 
> > > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > > the same patch/commit), kindly add following tags
> > > | Reported-by: kernel test robot <lkp@...el.com>
> > > | Closes: https://lore.kernel.org/oe-kbuild-all/202403121032.WDY8ftKq-lkp@intel.com/
> > > 
> > > All warnings (new ones prefixed by >>, old ones prefixed by <<):
> > > 
> > > WARNING: modpost: missing MODULE_DESCRIPTION() in vmlinux.o
> > > WARNING: modpost: vmlinux: section mismatch in reference: put_page+0x58 (section: .text.unlikely) -> initcall_level_names (section: .init.data)
> > > >> WARNING: modpost: vmlinux: section mismatch in reference: bitmap_copy_clear_tail+0x58 (section: .text.unlikely) -> __setup_str_initcall_blacklist (section: .init.rodata)
> > 
> > Reminds me of https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92938
> 
> Thanks for the information. We will configure the bot to ignore this
> pattern thus to avoid false reports.

I haven't told they are false.
I Cc'ed Max who can shed a light on this.

-- 
With Best Regards,
Andy Shevchenko