[jpirko-mlxsw:linecards 65/92] drivers/net/ethernet/mellanox/mlxsw/core_linecards.c:301:16: warning: variable 'end' set but not used

[kernel test robot <lkp@intel.com>]

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tree:   https://github.com/jpirko/linux_mlxsw linecards
head:   f1abf7385107a947646d6b6edaa9b7594894a53a
commit: f05b460b1c388ff8c4b01c3bbdb707168862a6b2 [65/92] mlxsw: core_linecards: Add line card objects and implement provisioning
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-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/jpirko/linux_mlxsw/commit/f05b460b1c388ff8c4b01c3bbdb707168862a6b2
        git remote add jpirko-mlxsw https://github.com/jpirko/linux_mlxsw
        git fetch --no-tags jpirko-mlxsw linecards
        git checkout f05b460b1c388ff8c4b01c3bbdb707168862a6b2
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=sh 

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

All warnings (new ones prefixed by >>):

   drivers/net/ethernet/mellanox/mlxsw/core_linecards.c: In function 'mlxsw_linecard_unprovision_work':
>> drivers/net/ethernet/mellanox/mlxsw/core_linecards.c:301:16: warning: variable 'end' set but not used [-Wunused-but-set-variable]
     301 |  unsigned long end;
         |                ^~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for SND_ATMEL_SOC_PDC
   Depends on SOUND && !UML && SND && SND_SOC && SND_ATMEL_SOC && HAS_DMA
   Selected by
   - SND_ATMEL_SOC_SSC && SOUND && !UML && SND && SND_SOC && SND_ATMEL_SOC
   - SND_ATMEL_SOC_SSC_PDC && SOUND && !UML && SND && SND_SOC && SND_ATMEL_SOC && ATMEL_SSC


vim +/end +301 drivers/net/ethernet/mellanox/mlxsw/core_linecards.c

   293	
   294	static void mlxsw_linecard_unprovision_work(struct work_struct *work)
   295	{
   296		struct mlxsw_linecard *linecard =
   297			container_of(work, struct mlxsw_linecard, provision_work);
   298		struct mlxsw_linecards *linecards;
   299		enum mlxsw_reg_mbct_status status;
   300		struct mlxsw_core *mlxsw_core;
 > 301		unsigned long end;
   302		int err;
   303	
   304		mutex_lock(&linecard->lock);
   305	
   306		linecards = linecard->linecards;
   307		mlxsw_core = linecard->linecards->mlxsw_core;
   308	
   309		mlxsw_reg_mbct_pack(linecard->mbct_pl, linecard->slot_index,
   310				    MLXSW_REG_MBCT_OP_DEACTIVATE, 0, false, NULL);
   311		err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(mbct), linecard->mbct_pl);
   312		if (err) {
   313			dev_err(linecards->bus_info->dev, "linecard %u: Failed to deactivate INI",
   314				linecard->slot_index);
   315			goto err_out;
   316		}
   317		mlxsw_reg_mbct_unpack(linecard->mbct_pl, &status);
   318		if (status == MLXSW_REG_MBCT_STATUS_DEACTIVATION_FAILED) {
   319			dev_err(linecards->bus_info->dev, "linecard %u: Failed to deactivate INI",
   320				linecard->slot_index);
   321			goto err_out;
   322		}
   323	
   324		end = jiffies + msecs_to_jiffies(MLXSW_LINECARD_INI_ERASE_WAIT_MSECS);
   325	
   326		mlxsw_reg_mbct_pack(linecard->mbct_pl, linecard->slot_index,
   327				    MLXSW_REG_MBCT_OP_ERASE_INI_IMAGE, 0,
   328				    false, NULL);
   329		err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(mbct),
   330				      linecard->mbct_pl);
   331		if (err) {
   332			dev_err(linecards->bus_info->dev, "linecard %u: Failed to erase INI",
   333				linecard->slot_index);
   334			goto err_out;
   335		}
   336		mlxsw_reg_mbct_unpack(linecard->mbct_pl, &status);
   337		switch (status) {
   338		case MLXSW_REG_MBCT_STATUS_ERASE_COMPLETE:
   339			break;
   340		default:
   341			/* Should not happen, fall-through. */
   342		case MLXSW_REG_MBCT_STATUS_ERASE_FAILED:
   343			dev_err(linecards->bus_info->dev, "linecard %u: Failed to erase INI",
   344				linecard->slot_index);
   345			goto err_out;
   346		case MLXSW_REG_MBCT_STATUS_INI_IN_USE:
   347			dev_err(linecards->bus_info->dev, "linecard %u: Failed to wait for INI to be not used",
   348				linecard->slot_index);
   349			goto err_out;
   350		}
   351		goto out;
   352	
   353	err_out:
   354		mlxsw_linecard_provision_fail(linecard);
   355	out:
   356		mutex_unlock(&linecard->lock);
   357	}
   358	

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

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