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* drivers/net/phy/mdio-cavium.c:21:16: note: in expansion of macro 'oct_mdio_readq'
@ 2020-07-06 17:25 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2020-07-06 17:25 UTC (permalink / raw)
  To: Nathan Chancellor; +Cc: kbuild-all, linux-kernel

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Hi Nathan,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   dcb7fd82c75ee2d6e6f9d8cc71c52519ed52e258
commit: b8fb640643fcdb3bca84137c4cec0c649b25e056 net: mdio-octeon: Fix Kconfig warnings and build errors
date:   11 months ago
config: m68k-randconfig-r015-20200706 (attached as .config)
compiler: m68k-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
        git checkout b8fb640643fcdb3bca84137c4cec0c649b25e056
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 

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 >>):

   In file included from include/linux/kernel.h:11,
                    from include/linux/delay.h:22,
                    from drivers/net/phy/mdio-cavium.c:6:
   include/linux/scatterlist.h: In function 'sg_set_buf':
   arch/m68k/include/asm/page_no.h:33:50: warning: ordered comparison of pointer with null pointer [-Wextra]
      33 | #define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
         |                                                  ^~
   include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
      78 | # define unlikely(x) __builtin_expect(!!(x), 0)
         |                                          ^
   include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON'
     143 |  BUG_ON(!virt_addr_valid(buf));
         |  ^~~~~~
   include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid'
     143 |  BUG_ON(!virt_addr_valid(buf));
         |          ^~~~~~~~~~~~~~~
   In file included from drivers/net/phy/mdio-cavium.c:11:
   drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_set_mode':
   drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     114 | #define oct_mdio_readq(addr)  readq((void *)addr)
         |                                     ^
>> drivers/net/phy/mdio-cavium.c:21:16: note: in expansion of macro 'oct_mdio_readq'
      21 |  smi_clk.u64 = oct_mdio_readq(p->register_base + SMI_CLK);
         |                ^~~~~~~~~~~~~~
   drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     113 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
         |                                                ^
>> drivers/net/phy/mdio-cavium.c:24:2: note: in expansion of macro 'oct_mdio_writeq'
      24 |  oct_mdio_writeq(smi_clk.u64, p->register_base + SMI_CLK);
         |  ^~~~~~~~~~~~~~~
   drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_c45_addr':
   drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     113 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
         |                                                ^
   drivers/net/phy/mdio-cavium.c:39:2: note: in expansion of macro 'oct_mdio_writeq'
      39 |  oct_mdio_writeq(smi_wr.u64, p->register_base + SMI_WR_DAT);
         |  ^~~~~~~~~~~~~~~
   drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     113 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
         |                                                ^
   drivers/net/phy/mdio-cavium.c:47:2: note: in expansion of macro 'oct_mdio_writeq'
      47 |  oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD);
         |  ^~~~~~~~~~~~~~~
   drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     114 | #define oct_mdio_readq(addr)  readq((void *)addr)
         |                                     ^
   drivers/net/phy/mdio-cavium.c:54:16: note: in expansion of macro 'oct_mdio_readq'
      54 |   smi_wr.u64 = oct_mdio_readq(p->register_base + SMI_WR_DAT);
         |                ^~~~~~~~~~~~~~
   drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_read':
   drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     113 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
         |                                                ^
   drivers/net/phy/mdio-cavium.c:86:2: note: in expansion of macro 'oct_mdio_writeq'
      86 |  oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD);
         |  ^~~~~~~~~~~~~~~
   drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     114 | #define oct_mdio_readq(addr)  readq((void *)addr)
         |                                     ^
   drivers/net/phy/mdio-cavium.c:93:16: note: in expansion of macro 'oct_mdio_readq'
      93 |   smi_rd.u64 = oct_mdio_readq(p->register_base + SMI_RD_DAT);
         |                ^~~~~~~~~~~~~~
   drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_write':
   drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     113 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
         |                                                ^
   drivers/net/phy/mdio-cavium.c:125:2: note: in expansion of macro 'oct_mdio_writeq'
     125 |  oct_mdio_writeq(smi_wr.u64, p->register_base + SMI_WR_DAT);
         |  ^~~~~~~~~~~~~~~
   drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     113 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
         |                                                ^
   drivers/net/phy/mdio-cavium.c:131:2: note: in expansion of macro 'oct_mdio_writeq'
     131 |  oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD);
         |  ^~~~~~~~~~~~~~~
   drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     114 | #define oct_mdio_readq(addr)  readq((void *)addr)
         |                                     ^
   drivers/net/phy/mdio-cavium.c:138:16: note: in expansion of macro 'oct_mdio_readq'
     138 |   smi_wr.u64 = oct_mdio_readq(p->register_base + SMI_WR_DAT);
         |                ^~~~~~~~~~~~~~

vim +/oct_mdio_readq +21 drivers/net/phy/mdio-cavium.c

1eefee901fca02 David Daney 2016-03-11  10  
1eefee901fca02 David Daney 2016-03-11 @11  #include "mdio-cavium.h"
1eefee901fca02 David Daney 2016-03-11  12  
1eefee901fca02 David Daney 2016-03-11  13  static void cavium_mdiobus_set_mode(struct cavium_mdiobus *p,
1eefee901fca02 David Daney 2016-03-11  14  				    enum cavium_mdiobus_mode m)
1eefee901fca02 David Daney 2016-03-11  15  {
1eefee901fca02 David Daney 2016-03-11  16  	union cvmx_smix_clk smi_clk;
1eefee901fca02 David Daney 2016-03-11  17  
1eefee901fca02 David Daney 2016-03-11  18  	if (m == p->mode)
1eefee901fca02 David Daney 2016-03-11  19  		return;
1eefee901fca02 David Daney 2016-03-11  20  
1eefee901fca02 David Daney 2016-03-11 @21  	smi_clk.u64 = oct_mdio_readq(p->register_base + SMI_CLK);
1eefee901fca02 David Daney 2016-03-11  22  	smi_clk.s.mode = (m == C45) ? 1 : 0;
1eefee901fca02 David Daney 2016-03-11  23  	smi_clk.s.preamble = 1;
1eefee901fca02 David Daney 2016-03-11 @24  	oct_mdio_writeq(smi_clk.u64, p->register_base + SMI_CLK);
1eefee901fca02 David Daney 2016-03-11  25  	p->mode = m;
1eefee901fca02 David Daney 2016-03-11  26  }
1eefee901fca02 David Daney 2016-03-11  27  

:::::: The code at line 21 was first introduced by commit
:::::: 1eefee901fca0208b8a56f20cdc134e2b8638ae7 phy: mdio-octeon: Refactor into two files/modules

:::::: TO: David Daney <david.daney@cavium.com>
:::::: CC: David S. Miller <davem@davemloft.net>

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

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