Re: [xen-tip:linux-next 12/12] WARNING: modpost: vmlinux: section mismatch in reference: mc_debug_data+0x0 (section: .data) -> mc_debug_data_early (section: .init.data)

[Juergen Gross <jgross@suse.com>]

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On 24.07.24 03:08, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git linux-next
> head:   368990a7fe30737c990f628a60d26d9854a9e690
> commit: 368990a7fe30737c990f628a60d26d9854a9e690 [12/12] xen: fix multicall debug data referencing
> config: x86_64-randconfig-012-20240724 (https://download.01.org/0day-ci/archive/20240724/202407240907.u0NJHgTu-lkp@intel.com/config)
> compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240724/202407240907.u0NJHgTu-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@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202407240907.u0NJHgTu-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>, old ones prefixed by <<):
> 
>>> WARNING: modpost: vmlinux: section mismatch in reference: mc_debug_data+0x0 (section: .data) -> mc_debug_data_early (section: .init.data)

With current infrastructure this is not easily fixable, as there is no way
to tag a percpu variable as __refdata.


Juergen

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