linux-kernel - Re: [PATCH 3/4] dm-qcow2: Introduce driver to create block devices over QCOW2 files

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Date:   Tue, 29 Mar 2022 04:03:31 +0800
From:   kernel test robot <lkp@...el.com>
To:     Kirill Tkhai <kirill.tkhai@...nvz.org>, agk@...hat.com,
        snitzer@...hat.com, dm-devel@...hat.com, song@...nel.org,
        linux-kernel@...r.kernel.org, khorenko@...tuozzo.com
Cc:     kbuild-all@...ts.01.org
Subject: Re: [PATCH 3/4] dm-qcow2: Introduce driver to create block devices
 over QCOW2 files

Hi Kirill,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on device-mapper-dm/for-next]
[also build test ERROR on song-md/md-next linus/master v5.17 next-20220328]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/intel-lab-lkp/linux/commits/Kirill-Tkhai/dm-Introduce-dm-qcow2-driver-to-attach-QCOW2-files-as-block-device/20220328-192031
base:   https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
config: mips-allyesconfig (https://download.01.org/0day-ci/archive/20220329/202203290340.HdsYxZJQ-lkp@intel.com/config)
compiler: mips-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://github.com/intel-lab-lkp/linux/commit/c41a15c11909af3588885a88f6622c36dcc9ca35
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Kirill-Tkhai/dm-Introduce-dm-qcow2-driver-to-attach-QCOW2-files-as-block-device/20220328-192031
        git checkout c41a15c11909af3588885a88f6622c36dcc9ca35
        # 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=mips SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All error/warnings (new ones prefixed by >>):

>> drivers/md/dm-qcow2-target.c:428:6: warning: no previous prototype for 'ploop_enospc_timer' [-Wmissing-prototypes]
     428 | void ploop_enospc_timer(struct timer_list *timer)
         |      ^~~~~~~~~~~~~~~~~~
--
   drivers/md/dm-qcow2-map.c: In function 'process_cow_indexes_write':
>> drivers/md/dm-qcow2-map.c:3861:28: warning: variable 'qvec' set but not used [-Wunused-but-set-variable]
    3861 |         struct qcow2_bvec *qvec;
         |                            ^~~~
   drivers/md/dm-qcow2-map.c: At top level:
>> drivers/md/dm-qcow2-map.c:4136:6: warning: no previous prototype for 'submit_embedded_qio' [-Wmissing-prototypes]
    4136 | void submit_embedded_qio(struct qcow2_target *tgt, struct qio *qio)
         |      ^~~~~~~~~~~~~~~~~~~
--
   arch/mips/kernel/head.o: in function `kernel_entry':
   (.ref.text+0xac): relocation truncated to fit: R_MIPS_26 against `start_kernel'
   init/main.o: in function `set_reset_devices':
   main.c:(.init.text+0x20): relocation truncated to fit: R_MIPS_26 against `_mcount'
   main.c:(.init.text+0x30): relocation truncated to fit: R_MIPS_26 against `__sanitizer_cov_trace_pc'
   init/main.o: in function `debug_kernel':
   main.c:(.init.text+0xa4): relocation truncated to fit: R_MIPS_26 against `_mcount'
   main.c:(.init.text+0xb4): relocation truncated to fit: R_MIPS_26 against `__sanitizer_cov_trace_pc'
   init/main.o: in function `quiet_kernel':
   main.c:(.init.text+0x128): relocation truncated to fit: R_MIPS_26 against `_mcount'
   main.c:(.init.text+0x138): relocation truncated to fit: R_MIPS_26 against `__sanitizer_cov_trace_pc'
   init/main.o: in function `warn_bootconfig':
   main.c:(.init.text+0x1ac): relocation truncated to fit: R_MIPS_26 against `_mcount'
   main.c:(.init.text+0x1bc): relocation truncated to fit: R_MIPS_26 against `__sanitizer_cov_trace_pc'
   init/main.o: in function `init_setup':
   main.c:(.init.text+0x238): relocation truncated to fit: R_MIPS_26 against `_mcount'
   main.c:(.init.text+0x258): additional relocation overflows omitted from the output
   mips-linux-ld: drivers/md/dm-qcow2-target.o: in function `calc_cached_parameters':
>> dm-qcow2-target.c:(.text.calc_cached_parameters+0x194): undefined reference to `__divdi3'
>> mips-linux-ld: dm-qcow2-target.c:(.text.calc_cached_parameters+0x264): undefined reference to `__divdi3'
   mips-linux-ld: drivers/md/dm-qcow2-map.o: in function `qio_subclu_indexes':
>> dm-qcow2-map.c:(.text.qio_subclu_indexes+0x21c): undefined reference to `__udivdi3'
>> mips-linux-ld: dm-qcow2-map.c:(.text.qio_subclu_indexes+0x298): undefined reference to `__udivdi3'
   mips-linux-ld: drivers/md/dm-qcow2-map.o: in function `calc_refcounters_map':
>> dm-qcow2-map.c:(.text.calc_refcounters_map+0x118): undefined reference to `__divdi3'
>> mips-linux-ld: dm-qcow2-map.c:(.text.calc_refcounters_map+0x184): undefined reference to `__moddi3'
>> mips-linux-ld: dm-qcow2-map.c:(.text.calc_refcounters_map+0x23c): undefined reference to `__divdi3'
   mips-linux-ld: dm-qcow2-map.c:(.text.calc_refcounters_map+0x46c): undefined reference to `__moddi3'
   mips-linux-ld: dm-qcow2-map.c:(.text.calc_refcounters_map+0x4a8): undefined reference to `__divdi3'
   mips-linux-ld: dm-qcow2-map.c:(.text.calc_refcounters_map+0x4f0): undefined reference to `__moddi3'
   mips-linux-ld: dm-qcow2-map.c:(.text.calc_refcounters_map+0x574): undefined reference to `__divdi3'
   mips-linux-ld: dm-qcow2-map.c:(.text.calc_refcounters_map+0x598): undefined reference to `__moddi3'
   mips-linux-ld: drivers/md/dm-qcow2-map.o: in function `calc_cluster_map':
>> dm-qcow2-map.c:(.text.calc_cluster_map+0x178): undefined reference to `__divdi3'
>> mips-linux-ld: dm-qcow2-map.c:(.text.calc_cluster_map+0x198): undefined reference to `__divdi3'
   mips-linux-ld: dm-qcow2-map.c:(.text.calc_cluster_map+0x3d8): undefined reference to `__divdi3'
>> mips-linux-ld: dm-qcow2-map.c:(.text.calc_cluster_map+0x5a8): undefined reference to `__moddi3'
   mips-linux-ld: dm-qcow2-map.c:(.text.calc_cluster_map+0x5d0): undefined reference to `__moddi3'
   mips-linux-ld: dm-qcow2-map.c:(.text.calc_cluster_map+0x650): undefined reference to `__moddi3'
   mips-linux-ld: dm-qcow2-map.c:(.text.calc_cluster_map+0x6bc): undefined reference to `__moddi3'
   mips-linux-ld: drivers/md/dm-qcow2-map.o: in function `split_qio_to_list':
>> dm-qcow2-map.c:(.text.split_qio_to_list+0x228): undefined reference to `__divdi3'
>> mips-linux-ld: dm-qcow2-map.c:(.text.split_qio_to_list+0x244): undefined reference to `__divdi3'
   mips-linux-ld: drivers/md/dm-qcow2-map.o: in function `relocate_refcount_table':
>> dm-qcow2-map.c:(.text.relocate_refcount_table+0x5c8): undefined reference to `__udivdi3'

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp