linux-kernel - [nbd168-wireless:mt76 8/15] drivers/net/wireless/mediatek/mt76/mt7915/soc.c:106:18: warning: variable 'temp' set but not used

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Date:   Tue, 15 Feb 2022 06:56:46 +0800
From:   kernel test robot <lkp@...el.com>
To:     Bo Jiao <Bo.Jiao@...iatek.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Felix Fietkau <nbd@....name>,
        Peter Chiu <chui-hao.chiu@...iatek.com>,
        Ryder Lee <ryder.lee@...iatek.com>,
        Sujuan Chen <sujuan.chen@...iatek.com>
Subject: [nbd168-wireless:mt76 8/15]
 drivers/net/wireless/mediatek/mt76/mt7915/soc.c:106:18: warning: variable
 'temp' set but not used

tree:   https://github.com/nbd168/wireless mt76
head:   56435dc5c16dfd2c15afd83933b8fe3689a299d6
commit: 91eeaef2523f3456f24a7dbdbf1e0e7deb133a48 [8/15] mt76: mt7915: add support for MT7986
config: mips-allmodconfig (https://download.01.org/0day-ci/archive/20220215/202202150606.d9hKxuTN-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/nbd168/wireless/commit/91eeaef2523f3456f24a7dbdbf1e0e7deb133a48
        git remote add nbd168-wireless https://github.com/nbd168/wireless
        git fetch --no-tags nbd168-wireless mt76
        git checkout 91eeaef2523f3456f24a7dbdbf1e0e7deb133a48
        # 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 drivers/net/wireless/mediatek/mt76/mt7915/

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

All warnings (new ones prefixed by >>):

   drivers/net/wireless/mediatek/mt76/mt7915/soc.c: In function 'mt7986_wmac_adie_efuse_read':
>> drivers/net/wireless/mediatek/mt76/mt7915/soc.c:106:18: warning: variable 'temp' set but not used [-Wunused-but-set-variable]
     106 |         int ret, temp;
         |                  ^~~~
   drivers/net/wireless/mediatek/mt76/mt7915/soc.c: In function 'mt7986_wmac_probe':
>> drivers/net/wireless/mediatek/mt76/mt7915/soc.c:1131:19: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    1131 |         chip_id = (u64)of_device_get_match_data(&pdev->dev);
         |                   ^


vim +/temp +106 drivers/net/wireless/mediatek/mt76/mt7915/soc.c

   101	
   102	static int
   103	mt7986_wmac_adie_efuse_read(struct mt7915_dev *dev, u8 adie,
   104				    u32 addr, u32 *data)
   105	{
 > 106		int ret, temp;
   107		u32 val, mask;
   108	
   109		ret = mt76_wmac_spi_write(dev, adie, MT_ADIE_EFUSE_CFG,
   110					  MT_ADIE_EFUSE_CTRL_MASK);
   111		if (ret)
   112			return ret;
   113	
   114		ret = mt76_wmac_spi_rmw(dev, adie, MT_ADIE_EFUSE2_CTRL, BIT(30), 0x0);
   115		if (ret)
   116			return ret;
   117	
   118		mask = (MT_ADIE_EFUSE_MODE_MASK | MT_ADIE_EFUSE_ADDR_MASK |
   119			MT_ADIE_EFUSE_KICK_MASK);
   120		val = FIELD_PREP(MT_ADIE_EFUSE_MODE_MASK, 0) |
   121		      FIELD_PREP(MT_ADIE_EFUSE_ADDR_MASK, addr) |
   122		      FIELD_PREP(MT_ADIE_EFUSE_KICK_MASK, 1);
   123		ret = mt76_wmac_spi_rmw(dev, adie, MT_ADIE_EFUSE2_CTRL, mask, val);
   124		if (ret)
   125			return ret;
   126	
   127		ret = read_poll_timeout(mt76_wmac_spi_read, temp,
   128					!FIELD_GET(MT_ADIE_EFUSE_KICK_MASK, val),
   129					USEC_PER_MSEC, 50 * USEC_PER_MSEC, false,
   130					dev, adie, MT_ADIE_EFUSE2_CTRL, &val);
   131		if (ret)
   132			return ret;
   133	
   134		ret = mt76_wmac_spi_read(dev, adie, MT_ADIE_EFUSE2_CTRL, &val);
   135		if (ret)
   136			return ret;
   137	
   138		if (FIELD_GET(MT_ADIE_EFUSE_VALID_MASK, val) == 1)
   139			ret = mt76_wmac_spi_read(dev, adie, MT_ADIE_EFUSE_RDATA0,
   140						 data);
   141	
   142		return ret;
   143	}
   144	

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