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20 Jun 2023 18:23:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10747"; a="717425037" X-IronPort-AV: E=Sophos;i="6.00,258,1681196400"; d="scan'208";a="717425037" Received: from lkp-server01.sh.intel.com (HELO 783282924a45) ([10.239.97.150]) by fmsmga007.fm.intel.com with ESMTP; 20 Jun 2023 18:23:48 -0700 Received: from kbuild by 783282924a45 with local (Exim 4.96) (envelope-from ) id 1qBmZX-0006PK-2J; Wed, 21 Jun 2023 01:23:47 +0000 Date: Wed, 21 Jun 2023 09:23:23 +0800 From: kernel test robot To: Arnd Bergmann Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Emil Renner Berthing , Lad Prabhakar Subject: [esmil:jh7100-dmapool 19/39] arch/hexagon/kernel/dma.c:24:2: error: call to undeclared function 'hexagon_flush_dcache_range'; ISO C99 and later do not support implicit function declarations Message-ID: <202306210901.C8pP4HB5-lkp@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://github.com/esmil/linux jh7100-dmapool head: 41d6f3f3b3698aab55a40592597677c448a7093a commit: 801f1883c4bb70cc8c7725b85e220adc36a77a94 [19/39] dma-mapping: replace custom code with generic implementation config: hexagon-randconfig-r016-20230620 (https://download.01.org/0day-ci/archive/20230621/202306210901.C8pP4HB5-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230621/202306210901.C8pP4HB5-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202306210901.C8pP4HB5-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from arch/hexagon/kernel/dma.c:8: In file included from include/linux/dma-map-ops.h:9: In file included from include/linux/dma-mapping.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from arch/hexagon/kernel/dma.c:8: In file included from include/linux/dma-map-ops.h:9: In file included from include/linux/dma-mapping.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from arch/hexagon/kernel/dma.c:8: In file included from include/linux/dma-map-ops.h:9: In file included from include/linux/dma-mapping.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ arch/hexagon/kernel/dma.c:19:27: error: use of undeclared identifier 'paddr' 19 | hexagon_inv_dcache_range(paddr, paddr + size); | ^ arch/hexagon/kernel/dma.c:19:34: error: use of undeclared identifier 'paddr' 19 | hexagon_inv_dcache_range(paddr, paddr + size); | ^ >> arch/hexagon/kernel/dma.c:24:2: error: call to undeclared function 'hexagon_flush_dcache_range'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 24 | hexagon_flush_dcache_range(paddr, paddr + size); | ^ arch/hexagon/kernel/dma.c:24:2: note: did you mean 'hexagon_clean_dcache_range'? arch/hexagon/include/asm/cacheflush.h:75:13: note: 'hexagon_clean_dcache_range' declared here 75 | extern void hexagon_clean_dcache_range(unsigned long start, unsigned long end); | ^ arch/hexagon/kernel/dma.c:24:29: error: use of undeclared identifier 'paddr' 24 | hexagon_flush_dcache_range(paddr, paddr + size); | ^ arch/hexagon/kernel/dma.c:24:36: error: use of undeclared identifier 'paddr' 24 | hexagon_flush_dcache_range(paddr, paddr + size); | ^ 6 warnings and 5 errors generated. vim +/hexagon_flush_dcache_range +24 arch/hexagon/kernel/dma.c 21 22 static inline void arch_dma_cache_wback_inv(phys_addr_t start, size_t size) 23 { > 24 hexagon_flush_dcache_range(paddr, paddr + size); 25 } 26 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki