Re: [PATCH net-next 3/3] net: phy: realtek: add hwmon support for temp sensor on RTL822x

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

Hi Heiner,

kernel test robot noticed the following build errors:

[auto build test ERROR on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Heiner-Kallweit/net-phy-realtek-add-support-for-reading-MDIO_MMD_VEND2-regs-on-RTL8125-RTL8126/20250110-195043
base:   net-next/main
patch link:    https://lore.kernel.org/r/dbfeb139-808f-4345-afe8-830b7f4da26a%40gmail.com
patch subject: [PATCH net-next 3/3] net: phy: realtek: add hwmon support for temp sensor on RTL822x
config: i386-randconfig-013-20250111 (https://download.01.org/0day-ci/archive/20250111/202501111711.i1W0TGwl-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250111/202501111711.i1W0TGwl-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202501111711.i1W0TGwl-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/net/phy/realtek_hwmon.c:3:4: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
       2 |  *
         |  int
       3 |  * HWMON support for Realtek PHY's
         |    ^
>> drivers/net/phy/realtek_hwmon.c:3:9: error: expected ';' after top level declarator
       3 |  * HWMON support for Realtek PHY's
         |         ^
         |         ;
   drivers/net/phy/realtek_hwmon.c:3:33: warning: missing terminating ' character [-Winvalid-pp-token]
       3 |  * HWMON support for Realtek PHY's
         |                                 ^
   In file included from drivers/net/phy/realtek_hwmon.c:8:
   In file included from include/linux/hwmon.h:15:
   In file included from include/linux/bitops.h:5:
   In file included from ./arch/x86/include/generated/uapi/asm/types.h:1:
   In file included from include/uapi/asm-generic/types.h:7:
   include/asm-generic/int-ll64.h:16:9: error: unknown type name '__s8'; did you mean '__u8'?
      16 | typedef __s8  s8;
         |         ^~~~
         |         __u8
   include/uapi/asm-generic/int-ll64.h:21:23: note: '__u8' declared here
      21 | typedef unsigned char __u8;
         |                       ^
   In file included from drivers/net/phy/realtek_hwmon.c:9:
   In file included from include/linux/phy.h:15:
   In file included from include/linux/spinlock.h:60:
   In file included from include/linux/thread_info.h:60:
   In file included from arch/x86/include/asm/thread_info.h:59:
   In file included from arch/x86/include/asm/cpufeature.h:5:
   In file included from arch/x86/include/asm/processor.h:35:
   In file included from include/linux/math64.h:6:
   include/linux/math.h:115:1: error: unknown type name '__s8'; did you mean '__u8'?
     115 | __STRUCT_FRACT(s8)
         | ^
   include/linux/math.h:112:2: note: expanded from macro '__STRUCT_FRACT'
     112 |         __##type numerator;                             \
         |         ^
   <scratch space>:221:1: note: expanded from here
     221 | __s8
         | ^
   include/uapi/asm-generic/int-ll64.h:21:23: note: '__u8' declared here
      21 | typedef unsigned char __u8;
         |                       ^
   In file included from drivers/net/phy/realtek_hwmon.c:9:
   In file included from include/linux/phy.h:15:
   In file included from include/linux/spinlock.h:60:
   In file included from include/linux/thread_info.h:60:
   In file included from arch/x86/include/asm/thread_info.h:59:
   In file included from arch/x86/include/asm/cpufeature.h:5:
   In file included from arch/x86/include/asm/processor.h:35:
   In file included from include/linux/math64.h:6:
   include/linux/math.h:115:1: error: unknown type name '__s8'; did you mean '__u8'?
     115 | __STRUCT_FRACT(s8)
         | ^
   include/linux/math.h:113:2: note: expanded from macro '__STRUCT_FRACT'
     113 |         __##type denominator;                           \
         |         ^
   <scratch space>:222:1: note: expanded from here
     222 | __s8
         | ^
   include/uapi/asm-generic/int-ll64.h:21:23: note: '__u8' declared here
      21 | typedef unsigned char __u8;
         |                       ^
   In file included from drivers/net/phy/realtek_hwmon.c:9:
   In file included from include/linux/phy.h:16:
   In file included from include/linux/ethtool.h:17:
   In file included from include/linux/compat.h:17:
   In file included from include/linux/fs.h:33:
   In file included from include/linux/percpu-rwsem.h:7:
   In file included from include/linux/rcuwait.h:6:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:98:11: warning: array index 3 is past the end of the array (that has type 'unsigned long[2]') [-Warray-bounds]
      98 |                 return (set->sig[3] | set->sig[2] |
         |                         ^        ~
   arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
      24 |         unsigned long sig[_NSIG_WORDS];
         |         ^
   In file included from drivers/net/phy/realtek_hwmon.c:9:
   In file included from include/linux/phy.h:16:
   In file included from include/linux/ethtool.h:17:
   In file included from include/linux/compat.h:17:
   In file included from include/linux/fs.h:33:
   In file included from include/linux/percpu-rwsem.h:7:
   In file included from include/linux/rcuwait.h:6:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:98:25: warning: array index 2 is past the end of the array (that has type 'unsigned long[2]') [-Warray-bounds]
      98 |                 return (set->sig[3] | set->sig[2] |
         |                                       ^        ~
   arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
      24 |         unsigned long sig[_NSIG_WORDS];
         |         ^
   In file included from drivers/net/phy/realtek_hwmon.c:9:
   In file included from include/linux/phy.h:16:
   In file included from include/linux/ethtool.h:17:
   In file included from include/linux/compat.h:17:
   In file included from include/linux/fs.h:33:
   In file included from include/linux/percpu-rwsem.h:7:
   In file included from include/linux/rcuwait.h:6:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:114:11: warning: array index 3 is past the end of the array (that has type 'const unsigned long[2]') [-Warray-bounds]
     114 |                 return  (set1->sig[3] == set2->sig[3]) &&
         |                          ^         ~
   arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
      24 |         unsigned long sig[_NSIG_WORDS];
         |         ^


vim +/int +3 drivers/net/phy/realtek_hwmon.c

   > 3	 * HWMON support for Realtek PHY's
     4	 *
     5	 * Author: Heiner Kallweit <hkallweit1@gmail.com>
     6	 */
     7	

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