[freescale-fslc:pr/256 7470/16397] drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h:506:23: error: type qualifiers ignored on function return type

[freescale-fslc:pr/256 7470/16397] drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h:506:23: error: type qualifiers ignored on function return type

[kernel test robot]

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tree:   https://github.com/Freescale/linux-fslc pr/256
head:   833dfde20a84e72abea15e51e24b5027091c864c
commit: 7dcadb8d9273dd1ce30f55e8b4489f7c195d44c7 [7470/16397] fsl_qbman: Framework for enabling Link status notification
config: arm-defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
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/Freescale/linux-fslc/commit/7dcadb8d9273dd1ce30f55e8b4489f7c195d44c7
        git remote add freescale-fslc https://github.com/Freescale/linux-fslc
        git fetch --no-tags freescale-fslc pr/256
        git checkout 7dcadb8d9273dd1ce30f55e8b4489f7c195d44c7
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 

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

All errors (new ones prefixed by >>):

   In file included from include/linux/fsl_usdpaa.h:17,
                    from drivers/staging/fsl_qbman/dpa_sys.h:66,
                    from drivers/staging/fsl_qbman/fsl_usdpaa.c:28:
   include/linux/fsl_qman.h:415:1: error: alignment 1 of 'struct qm_eqcr_entry' is less than 8 [-Werror=packed-not-aligned]
     415 | } __packed;
         | ^
   include/linux/fsl_qman.h:469:3: error: alignment 1 of 'struct <anonymous>' is less than 8 [-Werror=packed-not-aligned]
     469 |   } __packed ern;
         |   ^
   include/linux/fsl_qman.h:468:17: error: 'fd' offset 15 in 'struct <anonymous>' isn't aligned to 8 [-Werror=packed-not-aligned]
     468 |    struct qm_fd fd;
         |                 ^~
   include/linux/fsl_qman.h:486:3: error: alignment 1 of 'struct <anonymous>' is less than 8 [-Werror=packed-not-aligned]
     486 |   } __packed dcern;
         |   ^
   include/linux/fsl_qman.h:485:17: error: 'fd' offset 15 in 'struct <anonymous>' isn't aligned to 8 [-Werror=packed-not-aligned]
     485 |    struct qm_fd fd;
         |                 ^~
   include/linux/fsl_qman.h:1679:1: error: alignment 1 of 'struct qm_mcr_ceetm_cq_peek_pop_xsfdrread' is less than 8 [-Werror=packed-not-aligned]
    1679 | } __packed;
         | ^
   include/linux/fsl_qman.h:1677:15: error: 'fd' offset 14 in 'struct qm_mcr_ceetm_cq_peek_pop_xsfdrread' isn't aligned to 8 [-Werror=packed-not-aligned]
    1677 |  struct qm_fd fd;
         |               ^~
   In file included from drivers/staging/fsl_qbman/fsl_usdpaa.c:31:
   drivers/staging/fsl_qbman/qman_low.h: In function 'qm_shutdown_fq':
   drivers/staging/fsl_qbman/qman_low.h:1291:8: error: variable 'dequeue_wq' set but not used [-Werror=unused-but-set-variable]
    1291 |    u16 dequeue_wq = 0;
         |        ^~~~~~~~~~
   In file included from drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.h:40,
                    from drivers/staging/fsl_qbman/fsl_usdpaa.c:38:
   drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h: At top level:
>> drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h:506:23: error: type qualifiers ignored on function return type [-Werror=ignored-qualifiers]
     506 | static inline ssize_t __const __must_check __attribute__((nonnull))
         |                       ^~~~~~~
   drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h:512:23: error: type qualifiers ignored on function return type [-Werror=ignored-qualifiers]
     512 | static inline ssize_t __const __must_check __attribute__((nonnull))
         |                       ^~~~~~~
   drivers/staging/fsl_qbman/fsl_usdpaa.c:398:6: error: no previous prototype for 'dbci_portal' [-Werror=missing-prototypes]
     398 | void dbci_portal(void *addr)
         |      ^~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +506 drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h

7fab630ae39d23 Madalin Bucur 2017-05-10  505  
7fab630ae39d23 Madalin Bucur 2017-05-10 @506  static inline ssize_t __const __must_check __attribute__((nonnull))
7fab630ae39d23 Madalin Bucur 2017-05-10  507  dpa_fd_length(const struct qm_fd *fd)
7fab630ae39d23 Madalin Bucur 2017-05-10  508  {
7fab630ae39d23 Madalin Bucur 2017-05-10  509  	return fd->length20;
7fab630ae39d23 Madalin Bucur 2017-05-10  510  }
7fab630ae39d23 Madalin Bucur 2017-05-10  511  

:::::: The code at line 506 was first introduced by commit
:::::: 7fab630ae39d2305c71f6ae6311f240ff9348404 dpa: SDK DPAA 1.x Ethernet driver

:::::: TO: Madalin Bucur <madalin.bucur@nxp.com>
:::::: CC: Dong Aisheng <aisheng.dong@nxp.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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