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From: kernel test robot <lkp@intel.com>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: kbuild-all@lists.01.org, clang-built-linux@googlegroups.com,
	linux-arm-kernel@lists.infradead.org, arm@kernel.org,
	Dinh Nguyen <dinguyen@kernel.org>
Subject: [soc:socfpga/drivers-2 10/16] drivers/clk/socfpga/clk-gate.c:102:7: warning: cast to smaller integer type 'int' from 'void *'
Date: Fri, 9 Apr 2021 06:25:47 +0800	[thread overview]
Message-ID: <202104090637.L7vdvTaA-lkp@intel.com> (raw)

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Hi Krzysztof,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git socfpga/drivers-2
head:   38ad957b04c5c2c9effc6336365187dae1301051
commit: 552418658acd6302e971c7137cb7d3108e464829 [10/16] clk: socfpga: use ARCH_INTEL_SOCFPGA also for 32-bit ARM SoCs (and compile test)
config: arm64-randconfig-r016-20210408 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 56ea2e2fdd691136d5e6631fa0e447173694b82c)
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
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git/commit/?id=552418658acd6302e971c7137cb7d3108e464829
        git remote add soc https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git
        git fetch --no-tags soc socfpga/drivers-2
        git checkout 552418658acd6302e971c7137cb7d3108e464829
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 

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/clk/socfpga/clk-gate.c:102:7: warning: cast to smaller integer type 'int' from 'void *' [-Wvoid-pointer-to-int-cast]
                   if ((int) socfpgaclk->div_reg & SOCFPGA_GPIO_DB_CLK_OFFSET)
                       ^~~~~~~~~~~~~~~~~~~~~~~~~
   1 warning generated.


vim +102 drivers/clk/socfpga/clk-gate.c

97259e99bdc914 Steffen Trumtrar 2014-01-06   89  
97259e99bdc914 Steffen Trumtrar 2014-01-06   90  static unsigned long socfpga_clk_recalc_rate(struct clk_hw *hwclk,
97259e99bdc914 Steffen Trumtrar 2014-01-06   91  	unsigned long parent_rate)
97259e99bdc914 Steffen Trumtrar 2014-01-06   92  {
97259e99bdc914 Steffen Trumtrar 2014-01-06   93  	struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk);
97259e99bdc914 Steffen Trumtrar 2014-01-06   94  	u32 div = 1, val;
97259e99bdc914 Steffen Trumtrar 2014-01-06   95  
97259e99bdc914 Steffen Trumtrar 2014-01-06   96  	if (socfpgaclk->fixed_div)
97259e99bdc914 Steffen Trumtrar 2014-01-06   97  		div = socfpgaclk->fixed_div;
97259e99bdc914 Steffen Trumtrar 2014-01-06   98  	else if (socfpgaclk->div_reg) {
97259e99bdc914 Steffen Trumtrar 2014-01-06   99  		val = readl(socfpgaclk->div_reg) >> socfpgaclk->shift;
25d4d341d31b34 Andy Shevchenko  2015-07-13  100  		val &= GENMASK(socfpgaclk->width - 1, 0);
97259e99bdc914 Steffen Trumtrar 2014-01-06  101  		/* Check for GPIO_DB_CLK by its offset */
97259e99bdc914 Steffen Trumtrar 2014-01-06 @102  		if ((int) socfpgaclk->div_reg & SOCFPGA_GPIO_DB_CLK_OFFSET)
97259e99bdc914 Steffen Trumtrar 2014-01-06  103  			div = val + 1;
97259e99bdc914 Steffen Trumtrar 2014-01-06  104  		else
97259e99bdc914 Steffen Trumtrar 2014-01-06  105  			div = (1 << val);
97259e99bdc914 Steffen Trumtrar 2014-01-06  106  	}
97259e99bdc914 Steffen Trumtrar 2014-01-06  107  
97259e99bdc914 Steffen Trumtrar 2014-01-06  108  	return parent_rate / div;
97259e99bdc914 Steffen Trumtrar 2014-01-06  109  }
97259e99bdc914 Steffen Trumtrar 2014-01-06  110  

:::::: The code at line 102 was first introduced by commit
:::::: 97259e99bdc9144d071815536f1dbc2e41c6b5a8 clk: socfpga: split clk code

:::::: TO: Steffen Trumtrar <s.trumtrar@pengutronix.de>
:::::: CC: Mike Turquette <mturquette@linaro.org>

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

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WARNING: multiple messages have this Message-ID (diff)
From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: [soc:socfpga/drivers-2 10/16] drivers/clk/socfpga/clk-gate.c:102:7: warning: cast to smaller integer type 'int' from 'void *'
Date: Fri, 09 Apr 2021 06:25:47 +0800	[thread overview]
Message-ID: <202104090637.L7vdvTaA-lkp@intel.com> (raw)

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Hi Krzysztof,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git socfpga/drivers-2
head:   38ad957b04c5c2c9effc6336365187dae1301051
commit: 552418658acd6302e971c7137cb7d3108e464829 [10/16] clk: socfpga: use ARCH_INTEL_SOCFPGA also for 32-bit ARM SoCs (and compile test)
config: arm64-randconfig-r016-20210408 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 56ea2e2fdd691136d5e6631fa0e447173694b82c)
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
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git/commit/?id=552418658acd6302e971c7137cb7d3108e464829
        git remote add soc https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git
        git fetch --no-tags soc socfpga/drivers-2
        git checkout 552418658acd6302e971c7137cb7d3108e464829
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 

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/clk/socfpga/clk-gate.c:102:7: warning: cast to smaller integer type 'int' from 'void *' [-Wvoid-pointer-to-int-cast]
                   if ((int) socfpgaclk->div_reg & SOCFPGA_GPIO_DB_CLK_OFFSET)
                       ^~~~~~~~~~~~~~~~~~~~~~~~~
   1 warning generated.


vim +102 drivers/clk/socfpga/clk-gate.c

97259e99bdc914 Steffen Trumtrar 2014-01-06   89  
97259e99bdc914 Steffen Trumtrar 2014-01-06   90  static unsigned long socfpga_clk_recalc_rate(struct clk_hw *hwclk,
97259e99bdc914 Steffen Trumtrar 2014-01-06   91  	unsigned long parent_rate)
97259e99bdc914 Steffen Trumtrar 2014-01-06   92  {
97259e99bdc914 Steffen Trumtrar 2014-01-06   93  	struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk);
97259e99bdc914 Steffen Trumtrar 2014-01-06   94  	u32 div = 1, val;
97259e99bdc914 Steffen Trumtrar 2014-01-06   95  
97259e99bdc914 Steffen Trumtrar 2014-01-06   96  	if (socfpgaclk->fixed_div)
97259e99bdc914 Steffen Trumtrar 2014-01-06   97  		div = socfpgaclk->fixed_div;
97259e99bdc914 Steffen Trumtrar 2014-01-06   98  	else if (socfpgaclk->div_reg) {
97259e99bdc914 Steffen Trumtrar 2014-01-06   99  		val = readl(socfpgaclk->div_reg) >> socfpgaclk->shift;
25d4d341d31b34 Andy Shevchenko  2015-07-13  100  		val &= GENMASK(socfpgaclk->width - 1, 0);
97259e99bdc914 Steffen Trumtrar 2014-01-06  101  		/* Check for GPIO_DB_CLK by its offset */
97259e99bdc914 Steffen Trumtrar 2014-01-06 @102  		if ((int) socfpgaclk->div_reg & SOCFPGA_GPIO_DB_CLK_OFFSET)
97259e99bdc914 Steffen Trumtrar 2014-01-06  103  			div = val + 1;
97259e99bdc914 Steffen Trumtrar 2014-01-06  104  		else
97259e99bdc914 Steffen Trumtrar 2014-01-06  105  			div = (1 << val);
97259e99bdc914 Steffen Trumtrar 2014-01-06  106  	}
97259e99bdc914 Steffen Trumtrar 2014-01-06  107  
97259e99bdc914 Steffen Trumtrar 2014-01-06  108  	return parent_rate / div;
97259e99bdc914 Steffen Trumtrar 2014-01-06  109  }
97259e99bdc914 Steffen Trumtrar 2014-01-06  110  

:::::: The code@line 102 was first introduced by commit
:::::: 97259e99bdc9144d071815536f1dbc2e41c6b5a8 clk: socfpga: split clk code

:::::: TO: Steffen Trumtrar <s.trumtrar@pengutronix.de>
:::::: CC: Mike Turquette <mturquette@linaro.org>

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

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             reply	other threads:[~2021-04-08 22:28 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-08 22:25 kernel test robot [this message]
2021-04-08 22:25 ` [soc:socfpga/drivers-2 10/16] drivers/clk/socfpga/clk-gate.c:102:7: warning: cast to smaller integer type 'int' from 'void *' kernel test robot

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