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Message-ID: <202510251005.LlcQkR59-lkp@intel.com>
Date: Sat, 25 Oct 2025 10:39:35 +0800
From: kernel test robot <lkp@...el.com>
To: David Yang <mmyangfl@...il.com>, netdev@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, David Yang <mmyangfl@...il.com>,
Andrew Lunn <andrew@...n.ch>, Vladimir Oltean <olteanv@...il.com>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Simon Horman <horms@...nel.org>,
Russell King <linux@...linux.org.uk>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 1/3] net: dsa: yt921x: Add STP/MST support
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
config: arm-allmodconfig (https://download.01.org/0day-ci/archive/20251025/202510251005.LlcQkR59-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251025/202510251005.LlcQkR59-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202510251005.LlcQkR59-lkp@intel.com/
All errors (new ones prefixed by >>):
115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
| ^~~~~~~~~~~~~~~~
drivers/net/dsa/yt921x.h:342:57: note: in expansion of macro 'FIELD_PREP'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~
include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
51 | #define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
| ^~~~~~~~~~~~
drivers/net/dsa/yt921x.h:341:49: note: in expansion of macro 'GENMASK'
341 | #define YT921X_VLAN_CTRL_STP_ID_M GENMASK(39, 36)
| ^~~~~~~
drivers/net/dsa/yt921x.h:342:68: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID_M'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/dsa/yt921x.c:2155:18: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID'
2155 | ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
| ^~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/arm/include/asm/ptrace.h:13,
from arch/arm/include/asm/irqflags.h:7,
from include/linux/irqflags.h:18,
from arch/arm/include/asm/bitops.h:28,
from include/linux/bitops.h:67:
include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
48 | (type_max(t) << (l) & \
| ^~
include/linux/bitfield.h:45:38: note: in definition of macro '__bf_shf'
45 | #define __bf_shf(x) (__builtin_ffsll(x) - 1)
| ^
drivers/net/dsa/yt921x.h:342:57: note: in expansion of macro 'FIELD_PREP'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~
include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
51 | #define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
| ^~~~~~~~~~~~
drivers/net/dsa/yt921x.h:341:49: note: in expansion of macro 'GENMASK'
341 | #define YT921X_VLAN_CTRL_STP_ID_M GENMASK(39, 36)
| ^~~~~~~
drivers/net/dsa/yt921x.h:342:68: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID_M'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/dsa/yt921x.c:2155:18: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID'
2155 | ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
49 | type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
| ^~
include/linux/bitfield.h:45:38: note: in definition of macro '__bf_shf'
45 | #define __bf_shf(x) (__builtin_ffsll(x) - 1)
| ^
drivers/net/dsa/yt921x.h:342:57: note: in expansion of macro 'FIELD_PREP'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~
include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
51 | #define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
| ^~~~~~~~~~~~
drivers/net/dsa/yt921x.h:341:49: note: in expansion of macro 'GENMASK'
341 | #define YT921X_VLAN_CTRL_STP_ID_M GENMASK(39, 36)
| ^~~~~~~
drivers/net/dsa/yt921x.h:342:68: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID_M'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/dsa/yt921x.c:2155:18: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID'
2155 | ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
48 | (type_max(t) << (l) & \
| ^~
include/linux/bitfield.h:116:63: note: in definition of macro 'FIELD_PREP'
116 | ((typeof(_mask))(_val) << __bf_shf(_mask)) & (_mask); \
| ^~~~~
include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
51 | #define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
| ^~~~~~~~~~~~
drivers/net/dsa/yt921x.h:341:49: note: in expansion of macro 'GENMASK'
341 | #define YT921X_VLAN_CTRL_STP_ID_M GENMASK(39, 36)
| ^~~~~~~
drivers/net/dsa/yt921x.h:342:68: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID_M'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/dsa/yt921x.c:2155:18: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID'
2155 | ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
49 | type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
| ^~
include/linux/bitfield.h:116:63: note: in definition of macro 'FIELD_PREP'
116 | ((typeof(_mask))(_val) << __bf_shf(_mask)) & (_mask); \
| ^~~~~
include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
51 | #define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
| ^~~~~~~~~~~~
drivers/net/dsa/yt921x.h:341:49: note: in expansion of macro 'GENMASK'
341 | #define YT921X_VLAN_CTRL_STP_ID_M GENMASK(39, 36)
| ^~~~~~~
drivers/net/dsa/yt921x.h:342:68: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID_M'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/dsa/yt921x.c:2155:18: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID'
2155 | ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
| ^~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/compiler_types.h:597:45: error: call to '__compiletime_assert_1178' declared with attribute error: FIELD_PREP: mask is not constant
597 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
include/linux/compiler_types.h:578:25: note: in definition of macro '__compiletime_assert'
578 | prefix ## suffix(); \
| ^~~~~~
include/linux/compiler_types.h:597:9: note: in expansion of macro '_compiletime_assert'
597 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:65:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
65 | BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask), \
| ^~~~~~~~~~~~~~~~
include/linux/bitfield.h:115:17: note: in expansion of macro '__BF_FIELD_CHECK'
115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
| ^~~~~~~~~~~~~~~~
drivers/net/dsa/yt921x.h:342:57: note: in expansion of macro 'FIELD_PREP'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~
drivers/net/dsa/yt921x.c:2155:18: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID'
2155 | ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
| ^~~~~~~~~~~~~~~~~~~~~~~
--
115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
| ^~~~~~~~~~~~~~~~
yt921x.h:342:57: note: in expansion of macro 'FIELD_PREP'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~
include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
51 | #define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
| ^~~~~~~~~~~~
yt921x.h:341:49: note: in expansion of macro 'GENMASK'
341 | #define YT921X_VLAN_CTRL_STP_ID_M GENMASK(39, 36)
| ^~~~~~~
yt921x.h:342:68: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID_M'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~~~~~~~~~~~~~~~~
yt921x.c:2155:18: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID'
2155 | ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
| ^~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/arm/include/asm/ptrace.h:13,
from arch/arm/include/asm/irqflags.h:7,
from include/linux/irqflags.h:18,
from arch/arm/include/asm/bitops.h:28,
from include/linux/bitops.h:67:
include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
48 | (type_max(t) << (l) & \
| ^~
include/linux/bitfield.h:45:38: note: in definition of macro '__bf_shf'
45 | #define __bf_shf(x) (__builtin_ffsll(x) - 1)
| ^
yt921x.h:342:57: note: in expansion of macro 'FIELD_PREP'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~
include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
51 | #define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
| ^~~~~~~~~~~~
yt921x.h:341:49: note: in expansion of macro 'GENMASK'
341 | #define YT921X_VLAN_CTRL_STP_ID_M GENMASK(39, 36)
| ^~~~~~~
yt921x.h:342:68: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID_M'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~~~~~~~~~~~~~~~~
yt921x.c:2155:18: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID'
2155 | ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
49 | type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
| ^~
include/linux/bitfield.h:45:38: note: in definition of macro '__bf_shf'
45 | #define __bf_shf(x) (__builtin_ffsll(x) - 1)
| ^
yt921x.h:342:57: note: in expansion of macro 'FIELD_PREP'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~
include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
51 | #define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
| ^~~~~~~~~~~~
yt921x.h:341:49: note: in expansion of macro 'GENMASK'
341 | #define YT921X_VLAN_CTRL_STP_ID_M GENMASK(39, 36)
| ^~~~~~~
yt921x.h:342:68: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID_M'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~~~~~~~~~~~~~~~~
yt921x.c:2155:18: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID'
2155 | ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/bits.h:48:27: warning: left shift count >= width of type [-Wshift-count-overflow]
48 | (type_max(t) << (l) & \
| ^~
include/linux/bitfield.h:116:63: note: in definition of macro 'FIELD_PREP'
116 | ((typeof(_mask))(_val) << __bf_shf(_mask)) & (_mask); \
| ^~~~~
include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
51 | #define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
| ^~~~~~~~~~~~
yt921x.h:341:49: note: in expansion of macro 'GENMASK'
341 | #define YT921X_VLAN_CTRL_STP_ID_M GENMASK(39, 36)
| ^~~~~~~
yt921x.h:342:68: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID_M'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~~~~~~~~~~~~~~~~
yt921x.c:2155:18: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID'
2155 | ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/bits.h:49:27: warning: right shift count >= width of type [-Wshift-count-overflow]
49 | type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
| ^~
include/linux/bitfield.h:116:63: note: in definition of macro 'FIELD_PREP'
116 | ((typeof(_mask))(_val) << __bf_shf(_mask)) & (_mask); \
| ^~~~~
include/linux/bits.h:51:33: note: in expansion of macro 'GENMASK_TYPE'
51 | #define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
| ^~~~~~~~~~~~
yt921x.h:341:49: note: in expansion of macro 'GENMASK'
341 | #define YT921X_VLAN_CTRL_STP_ID_M GENMASK(39, 36)
| ^~~~~~~
yt921x.h:342:68: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID_M'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~~~~~~~~~~~~~~~~
yt921x.c:2155:18: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID'
2155 | ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
| ^~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/compiler_types.h:597:45: error: call to '__compiletime_assert_1178' declared with attribute error: FIELD_PREP: mask is not constant
597 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
include/linux/compiler_types.h:578:25: note: in definition of macro '__compiletime_assert'
578 | prefix ## suffix(); \
| ^~~~~~
include/linux/compiler_types.h:597:9: note: in expansion of macro '_compiletime_assert'
597 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:65:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
65 | BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask), \
| ^~~~~~~~~~~~~~~~
include/linux/bitfield.h:115:17: note: in expansion of macro '__BF_FIELD_CHECK'
115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
| ^~~~~~~~~~~~~~~~
yt921x.h:342:57: note: in expansion of macro 'FIELD_PREP'
342 | #define YT921X_VLAN_CTRL_STP_ID(x) FIELD_PREP(YT921X_VLAN_CTRL_STP_ID_M, (x))
| ^~~~~~~~~~
yt921x.c:2155:18: note: in expansion of macro 'YT921X_VLAN_CTRL_STP_ID'
2155 | ctrl64 = YT921X_VLAN_CTRL_STP_ID(msti->msti);
| ^~~~~~~~~~~~~~~~~~~~~~~
vim +/__compiletime_assert_1178 +597 include/linux/compiler_types.h
eb5c2d4b45e3d2 Will Deacon 2020-07-21 583
eb5c2d4b45e3d2 Will Deacon 2020-07-21 584 #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 585 __compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21 586
eb5c2d4b45e3d2 Will Deacon 2020-07-21 587 /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21 588 * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21 589 * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21 590 * @msg: a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21 591 *
eb5c2d4b45e3d2 Will Deacon 2020-07-21 592 * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21 593 * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21 594 * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21 595 */
eb5c2d4b45e3d2 Will Deacon 2020-07-21 596 #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @597 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21 598
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