linux-kernel - [asahilinux:dart/t6000 5/5] drivers/iommu/io-pgtable-arm.c:180:10: error: implicit declaration of function 'FIELD

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Date:   Tue, 2 Nov 2021 08:55:38 +0800
From:   kernel test robot <lkp@...el.com>
To:     Sven Peter <sven@...npeter.dev>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [asahilinux:dart/t6000 5/5] drivers/iommu/io-pgtable-arm.c:180:10:
 error: implicit declaration of function 'FIELD_PREP'

tree:   https://github.com/AsahiLinux/linux dart/t6000
head:   1dad0d5a8322c5c6edc88ad0cc0d6ec98bda766d
commit: 1dad0d5a8322c5c6edc88ad0cc0d6ec98bda766d [5/5] iommu/io-pgtable: Add APPLE_DART support for the T6000 variant
config: arm-randconfig-r011-20211101 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 264d3b6d4e08401c5b50a85bd76e80b3461d77e6)
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
        # install arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/AsahiLinux/linux/commit/1dad0d5a8322c5c6edc88ad0cc0d6ec98bda766d
        git remote add asahilinux https://github.com/AsahiLinux/linux
        git fetch --no-tags asahilinux dart/t6000
        git checkout 1dad0d5a8322c5c6edc88ad0cc0d6ec98bda766d
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> drivers/iommu/io-pgtable-arm.c:180:10: error: implicit declaration of function 'FIELD_PREP' [-Werror,-Wimplicit-function-declaration]
                           pte = FIELD_PREP(APPLE_DART_T6000_PTE_ADDR_MASK, paddr);
                                 ^
>> drivers/iommu/io-pgtable-arm.c:200:12: error: implicit declaration of function 'FIELD_GET' [-Werror,-Wimplicit-function-declaration]
                           paddr = FIELD_GET(APPLE_DART_T6000_PTE_ADDR_MASK, paddr);
                                   ^
   2 errors generated.


vim +/FIELD_PREP +180 drivers/iommu/io-pgtable-arm.c

   170	
   171	static arm_lpae_iopte paddr_to_iopte(phys_addr_t paddr,
   172					     struct arm_lpae_io_pgtable *data)
   173	{
   174		arm_lpae_iopte pte = paddr;
   175	
   176		if (data->iop.fmt == APPLE_DART) {
   177			paddr >>= APPLE_DART_PADDR_SHIFT;
   178	
   179			if (data->iop.cfg.oas > 40)
 > 180				pte = FIELD_PREP(APPLE_DART_T6000_PTE_ADDR_MASK, paddr);
   181			else
   182				pte = FIELD_PREP(APPLE_DART_T8103_PTE_ADDR_MASK, paddr);
   183	
   184			pte |= FIELD_PREP(APPLE_DART_PTE_SUBPAGE_START, 0);
   185			pte |= FIELD_PREP(APPLE_DART_PTE_SUBPAGE_END, 0xfff);
   186			return pte;
   187		}
   188	
   189		/* Of the bits which overlap, either 51:48 or 15:12 are always RES0 */
   190		return (pte | (pte >> (48 - 12))) & ARM_LPAE_PTE_ADDR_MASK;
   191	}
   192	
   193	static phys_addr_t iopte_to_paddr(arm_lpae_iopte pte,
   194					  struct arm_lpae_io_pgtable *data)
   195	{
   196		u64 paddr = pte & ARM_LPAE_PTE_ADDR_MASK;
   197	
   198		if (data->iop.fmt == APPLE_DART) {
   199			if (data->iop.cfg.oas > 40)
 > 200				paddr = FIELD_GET(APPLE_DART_T6000_PTE_ADDR_MASK, paddr);
   201			else
   202				paddr = FIELD_GET(APPLE_DART_T8103_PTE_ADDR_MASK, paddr);
   203	
   204			return paddr << APPLE_DART_PADDR_SHIFT;
   205		}
   206	
   207		if (ARM_LPAE_GRANULE(data) < SZ_64K)
   208			return paddr;
   209	
   210		/* Rotate the packed high-order bits back to the top */
   211		return (paddr | (paddr << (48 - 12))) & (ARM_LPAE_PTE_ADDR_MASK << 4);
   212	}
   213	

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

Download attachment ".config.gz" of type "application/gzip" (38645 bytes)