linux-kernel - Re: [linux-stable-rc:queue/5.10 6492/9999] ERROR: modpost: "raid6_2data

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Date:   Wed, 15 Dec 2021 10:21:44 -0700
From:   Nathan Chancellor <nathan@...nel.org>
To:     kernel test robot <lkp@...el.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Sasha Levin <sashal@...nel.org>
Subject: Re: [linux-stable-rc:queue/5.10 6492/9999] ERROR: modpost:
 "raid6_2data_recov" [fs/btrfs/btrfs.ko] undefined!

On Wed, Dec 15, 2021 at 02:49:44PM +0800, kernel test robot wrote:
> Hi Nathan,
> 
> First bad commit (maybe != root cause):

Indeed, pre-existing issue :)

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git queue/5.10
> head:   a0e5648b46a984339e8c472bfe5da299dd65fc3b
> commit: f7121692795c654b52b460a11107a87285bb1dcd [6492/9999] hexagon: handle {,SOFT}IRQENTRY_TEXT in linker script
> config: hexagon-randconfig-r041-20211215 (https://download.01.org/0day-ci/archive/20211215/202112151422.M34sDTRZ-lkp@intel.com/config)
> compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project b6a2ddb6c8ac29412b1361810972e15221fa021c)
> 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/stable/linux-stable-rc.git/commit/?id=f7121692795c654b52b460a11107a87285bb1dcd
>         git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
>         git fetch --no-tags linux-stable-rc queue/5.10
>         git checkout f7121692795c654b52b460a11107a87285bb1dcd
>         # save the config file to linux build tree
>         mkdir build_dir
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash
> 
> 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 >>, old ones prefixed by <<):
> 
> ERROR: modpost: "__raw_writesl" [drivers/i3c/master/i3c-master-cdns.ko] undefined!
> ERROR: modpost: "__raw_readsl" [drivers/i3c/master/i3c-master-cdns.ko] undefined!

This is fixed in linux-5.10.y head, commit 0854c9ff2151 ("hexagon:
export raw I/O routines for modules").

> >> ERROR: modpost: "raid6_2data_recov" [fs/btrfs/btrfs.ko] undefined!
> >> ERROR: modpost: "raid6_datap_recov" [fs/btrfs/btrfs.ko] undefined!
> >> ERROR: modpost: "raid6_call" [fs/btrfs/btrfs.ko] undefined!
> >> ERROR: modpost: "xor_blocks" [fs/btrfs/btrfs.ko] undefined!
> >> ERROR: modpost: "__compiletime_assert_963" [fs/btrfs/btrfs.ko] undefined!
> 
> Kconfig warnings: (for reference only)
>    WARNING: unmet direct dependencies detected for BTRFS_FS
>    Depends on BLOCK && !PPC_256K_PAGES && !PAGE_SIZE_256KB
>    Selected by
>    - TEST_KMOD && RUNTIME_TESTING_MENU && m && MODULES && NETDEVICES && NET_CORE && INET && BLOCK

The rest of the errors should be fixed by my series here, which is
currently in -mm:

https://lore.kernel.org/r/20211129230141.228085-1-nathan@kernel.org/

I can backport it once it lands in mainline.

Cheers,
Nathan