linux-kernel - Re: [PATCH v8 08/15] PCI: cadence: Add support for High Perf Architecture (HPA) controller

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Message-ID: <202508261955.U9IomdXb-lkp@intel.com>
Date: Tue, 26 Aug 2025 20:08:30 +0800
From: kernel test robot <lkp@...el.com>
To: hans.zhang@...tech.com, bhelgaas@...gle.com, lpieralisi@...nel.org,
	kw@...ux.com, mani@...nel.org, robh@...nel.org,
	kwilczynski@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org
Cc: oe-kbuild-all@...ts.linux.dev, mpillai@...ence.com,
	fugang.duan@...tech.com, guoyin.chen@...tech.com,
	peter.chen@...tech.com, cix-kernel-upstream@...tech.com,
	linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, Hans Zhang <hans.zhang@...tech.com>
Subject: Re: [PATCH v8 08/15] PCI: cadence: Add support for High Perf
 Architecture (HPA) controller

Hi,

kernel test robot noticed the following build errors:

[auto build test ERROR on be48bcf004f9d0c9207ff21d0edb3b42f253829e]

url:    https://github.com/intel-lab-lkp/linux/commits/hans-zhang-cixtech-com/PCI-cadence-Add-module-support-for-platform-controller-driver/20250819-200002
base:   be48bcf004f9d0c9207ff21d0edb3b42f253829e
patch link:    https://lore.kernel.org/r/20250819115239.4170604-9-hans.zhang%40cixtech.com
patch subject: [PATCH v8 08/15] PCI: cadence: Add support for High Perf Architecture (HPA) controller
config: powerpc-randconfig-001-20250826 (https://download.01.org/0day-ci/archive/20250826/202508261955.U9IomdXb-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250826/202508261955.U9IomdXb-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/202508261955.U9IomdXb-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   drivers/pci/controller/cadence/pcie-cadence-hpa.c: In function 'cdns_pcie_hpa_set_outbound_region':
>> include/linux/compiler_types.h:572:38: error: call to '__compiletime_assert_488' declared with attribute error: FIELD_PREP: value too large for the field
     _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
                                         ^
   include/linux/compiler_types.h:553:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
       ^~~~~~
   include/linux/compiler_types.h:572:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
     ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
    #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                        ^~~~~~~~~~~~~~~~~~
   include/linux/bitfield.h:68:3: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ?  \
      ^~~~~~~~~~~~~~~~
   include/linux/bitfield.h:115:3: note: in expansion of macro '__BF_FIELD_CHECK'
      __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
      ^~~~~~~~~~~~~~~~
   drivers/pci/controller/cadence/pcie-cadence-hpa-regs.h:147:2: note: in expansion of macro 'FIELD_PREP'
     FIELD_PREP(CDNS_PCIE_HPA_AT_OB_REGION_CPU_ADDR0_NBITS_MASK, ((nbits) - 1))
     ^~~~~~~~~~
   drivers/pci/controller/cadence/pcie-cadence-hpa.c:129:10: note: in expansion of macro 'CDNS_PCIE_HPA_AT_OB_REGION_CPU_ADDR0_NBITS'
     addr0 = CDNS_PCIE_HPA_AT_OB_REGION_CPU_ADDR0_NBITS(nbits) |
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/__compiletime_assert_488 +572 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  558  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  559  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  560  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  561  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  562  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  563   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  564   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  565   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  566   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  567   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  568   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  569   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  570   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  571  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @572  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  573  

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https://github.com/intel/lkp-tests/wiki