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* Re: [PATCH net-next 1/3] net: dsa: yt921x: Add STP/MST support
       [not found] <20251024033237.1336249-2-mmyangfl@gmail.com>
@ 2025-10-25  5:43 ` kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2025-10-25  5:43 UTC (permalink / raw)
  To: David Yang, netdev
  Cc: llvm, oe-kbuild-all, David Yang, Andrew Lunn, Vladimir Oltean,
	Eric Dumazet, Jakub Kicinski, Paolo Abeni, Simon Horman,
	Russell King, linux-kernel

Hi David,

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/David-Yang/net-dsa-yt921x-Add-STP-MST-support/20251024-113613
base:   net-next/main
patch link:    https://lore.kernel.org/r/20251024033237.1336249-2-mmyangfl%40gmail.com
patch subject: [PATCH net-next 1/3] net: dsa: yt921x: Add STP/MST support
:::::: branch date: 22 hours ago
:::::: commit date: 22 hours ago
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20251025/202510250954.SHhCZUaW-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251025/202510250954.SHhCZUaW-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/r/202510250954.SHhCZUaW-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

>> drivers/net/dsa/yt921x.c:2154:11: warning: shift count >= width of type [-Wshift-count-overflow]
    2154 |         mask64 = YT921X_VLAN_CTRL_STP_ID_M;
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/yt921x.h:341:37: note: expanded from macro 'YT921X_VLAN_CTRL_STP_ID_M'
     341 | #define  YT921X_VLAN_CTRL_STP_ID_M              GENMASK(39, 36)
         |                                                 ^~~~~~~~~~~~~~~
   include/linux/bits.h:51:24: note: expanded from macro 'GENMASK'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/bits.h:48:20: note: expanded from macro 'GENMASK_TYPE'
      48 |              (type_max(t) << (l) &                              \
         |                           ^  ~~~
>> drivers/net/dsa/yt921x.c:2154:11: warning: shift count >= width of type [-Wshift-count-overflow]
    2154 |         mask64 = YT921X_VLAN_CTRL_STP_ID_M;
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/yt921x.h:341:37: note: expanded from macro 'YT921X_VLAN_CTRL_STP_ID_M'
     341 | #define  YT921X_VLAN_CTRL_STP_ID_M              GENMASK(39, 36)
         |                                                 ^~~~~~~~~~~~~~~
   include/linux/bits.h:51:24: note: expanded from macro 'GENMASK'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/bits.h:49:20: note: expanded from macro 'GENMASK_TYPE'
      49 |               type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
         |                           ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/yt921x.c:2155:11: warning: shift count >= width of type [-Wshift-count-overflow]
    2155 |         ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/yt921x.h:342:51: note: expanded from macro 'YT921X_VLAN_CTRL_STP_ID'
     342 | #define   YT921X_VLAN_CTRL_STP_ID(x)                    FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
         |                                                         ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/yt921x.h:341:37: note: expanded from macro 'YT921X_VLAN_CTRL_STP_ID_M'
     341 | #define  YT921X_VLAN_CTRL_STP_ID_M              GENMASK(39, 36)
         |                                                 ^
   include/linux/bits.h:51:24: note: expanded from macro 'GENMASK'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^
   note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   include/linux/compiler_types.h:597:22: note: expanded from macro 'compiletime_assert'
     597 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:585:23: note: expanded from macro '_compiletime_assert'
     585 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:577:9: note: expanded from macro '__compiletime_assert'
     577 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   drivers/net/dsa/yt921x.c:2155:11: warning: shift count >= width of type [-Wshift-count-overflow]
    2155 |         ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/yt921x.h:342:51: note: expanded from macro 'YT921X_VLAN_CTRL_STP_ID'
     342 | #define   YT921X_VLAN_CTRL_STP_ID(x)                    FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
         |                                                         ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/yt921x.h:341:37: note: expanded from macro 'YT921X_VLAN_CTRL_STP_ID_M'
     341 | #define  YT921X_VLAN_CTRL_STP_ID_M              GENMASK(39, 36)
         |                                                 ^
   include/linux/bits.h:51:24: note: expanded from macro 'GENMASK'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^
   note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   include/linux/compiler_types.h:597:22: note: expanded from macro 'compiletime_assert'
     597 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:585:23: note: expanded from macro '_compiletime_assert'
     585 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:577:9: note: expanded from macro '__compiletime_assert'
     577 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   drivers/net/dsa/yt921x.c:2155:11: warning: shift count >= width of type [-Wshift-count-overflow]
    2155 |         ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/yt921x.h:342:51: note: expanded from macro 'YT921X_VLAN_CTRL_STP_ID'
     342 | #define   YT921X_VLAN_CTRL_STP_ID(x)                    FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
         |                                                         ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/yt921x.h:341:37: note: expanded from macro 'YT921X_VLAN_CTRL_STP_ID_M'
     341 | #define  YT921X_VLAN_CTRL_STP_ID_M              GENMASK(39, 36)
         |                                                 ^
   include/linux/bits.h:51:24: note: expanded from macro 'GENMASK'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^
   note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   include/linux/compiler_types.h:597:22: note: expanded from macro 'compiletime_assert'
     597 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:585:23: note: expanded from macro '_compiletime_assert'
     585 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:577:9: note: expanded from macro '__compiletime_assert'
     577 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   drivers/net/dsa/yt921x.c:2155:11: warning: shift count >= width of type [-Wshift-count-overflow]
    2155 |         ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/yt921x.h:342:51: note: expanded from macro 'YT921X_VLAN_CTRL_STP_ID'
     342 | #define   YT921X_VLAN_CTRL_STP_ID(x)                    FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
         |                                                         ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/dsa/yt921x.h:341:37: note: expanded from macro 'YT921X_VLAN_CTRL_STP_ID_M'
     341 | #define  YT921X_VLAN_CTRL_STP_ID_M              GENMASK(39, 36)
         |                                                 ^
   include/linux/bits.h:51:24: note: expanded from macro 'GENMASK'
      51 | #define GENMASK(h, l)           GENMASK_TYPE(unsigned long, h, l)
         |                                 ^
   note: (skipping 4 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   include/linux/compiler_types.h:597:22: note: expanded from macro 'compiletime_assert'
     597 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:585:23: note: expanded from macro '_compiletime_assert'
     585 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler_types.h:577:9: note: expanded from macro '__compiletime_assert'
     577 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
>> drivers/net/dsa/yt921x.c:2155:11: error: call to '__compiletime_assert_989' declared with 'error' attribute: FIELD_PREP: mask is zero
   drivers/net/dsa/yt921x.h:342:40: note: expanded from macro 'YT921X_VLAN_CTRL_STP_ID'
     342 | #define   YT921X_VLAN_CTRL_STP_ID(x)                    FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
         |                                                         ^
   include/linux/bitfield.h:115:3: note: expanded from macro 'FIELD_PREP'
     115 |                 __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: ");    \
         |                 ^
   include/linux/bitfield.h:67:3: note: expanded from macro '__BF_FIELD_CHECK'
      67 |                 BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero");    \
         |                 ^
   note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
   include/linux/compiler_types.h:585:2: note: expanded from macro '_compiletime_assert'
     585 |         __compiletime_assert(condition, msg, prefix, suffix)
         |         ^
   include/linux/compiler_types.h:578:4: note: expanded from macro '__compiletime_assert'
     578 |                         prefix ## suffix();                             \
         |                         ^
   <scratch space>:47:1: note: expanded from here
      47 | __compiletime_assert_989
         | ^
   6 warnings and 1 error generated.


vim +2155 drivers/net/dsa/yt921x.c

5c1f0fbc2c12ae David Yang 2025-10-24  2139  
5c1f0fbc2c12ae David Yang 2025-10-24  2140  static int
5c1f0fbc2c12ae David Yang 2025-10-24  2141  yt921x_dsa_vlan_msti_set(struct dsa_switch *ds, struct dsa_bridge bridge,
5c1f0fbc2c12ae David Yang 2025-10-24  2142  			 const struct switchdev_vlan_msti *msti)
5c1f0fbc2c12ae David Yang 2025-10-24  2143  {
5c1f0fbc2c12ae David Yang 2025-10-24  2144  	struct yt921x_priv *priv = to_yt921x_priv(ds);
5c1f0fbc2c12ae David Yang 2025-10-24  2145  	u64 mask64;
5c1f0fbc2c12ae David Yang 2025-10-24  2146  	u64 ctrl64;
5c1f0fbc2c12ae David Yang 2025-10-24  2147  	int res;
5c1f0fbc2c12ae David Yang 2025-10-24  2148  
5c1f0fbc2c12ae David Yang 2025-10-24  2149  	if (!msti->vid)
5c1f0fbc2c12ae David Yang 2025-10-24  2150  		return -EINVAL;
5c1f0fbc2c12ae David Yang 2025-10-24  2151  	if (msti->msti <= 0 || msti->msti >= YT921X_MSTI_NUM)
5c1f0fbc2c12ae David Yang 2025-10-24  2152  		return -EINVAL;
5c1f0fbc2c12ae David Yang 2025-10-24  2153  
5c1f0fbc2c12ae David Yang 2025-10-24 @2154  	mask64 = YT921X_VLAN_CTRL_STP_ID_M;
5c1f0fbc2c12ae David Yang 2025-10-24 @2155  	ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
5c1f0fbc2c12ae David Yang 2025-10-24  2156  
5c1f0fbc2c12ae David Yang 2025-10-24  2157  	mutex_lock(&priv->reg_lock);
5c1f0fbc2c12ae David Yang 2025-10-24  2158  	res = yt921x_reg64_update_bits(priv, YT921X_VLANn_CTRL(msti->vid),
5c1f0fbc2c12ae David Yang 2025-10-24  2159  				       mask64, ctrl64);
5c1f0fbc2c12ae David Yang 2025-10-24  2160  	mutex_unlock(&priv->reg_lock);
5c1f0fbc2c12ae David Yang 2025-10-24  2161  
5c1f0fbc2c12ae David Yang 2025-10-24  2162  	return res;
5c1f0fbc2c12ae David Yang 2025-10-24  2163  }
5c1f0fbc2c12ae David Yang 2025-10-24  2164  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki


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