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X-CSE-ConnectionGUID: BdBbR7HBSlydiBzq+MLOpg== X-CSE-MsgGUID: tsh+MSelREGDYYzC3QjTtw== X-IronPort-AV: E=McAfee;i="6800,10657,11479"; a="52728144" X-IronPort-AV: E=Sophos;i="6.16,277,1744095600"; d="scan'208";a="52728144" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jun 2025 03:00:37 -0700 X-CSE-ConnectionGUID: dcl7jdAfS+C5F3cAPEmc8Q== X-CSE-MsgGUID: 1fQrdHCTQzSjWSLz5Du8NA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,277,1744095600"; d="scan'208";a="153508437" Received: from igk-lkp-server01.igk.intel.com (HELO e588e990b675) ([10.91.175.65]) by fmviesa006.fm.intel.com with ESMTP; 30 Jun 2025 03:00:36 -0700 Received: from kbuild by e588e990b675 with local (Exim 4.96) (envelope-from ) id 1uWBJS-0001BD-0h; Mon, 30 Jun 2025 10:00:34 +0000 Date: Mon, 30 Jun 2025 11:59:35 +0200 From: kernel test robot To: Dave Penkler Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org Subject: drivers/staging/gpib/eastwood/fluke_gpib.c:1013:21: error: call to undeclared function 'ioremap'; ISO C99 and later do not support implicit function declarations Message-ID: <202506301119.CV6LBf9T-lkp@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: d0b3b7b22dfa1f4b515fd3a295b3fd958f9e81af commit: 165e8cc3cfec9ef51f3376b0d49b115294f34f3b staging: gpib: Add KBUILD files for GPIB drivers date: 9 months ago config: s390-randconfig-2002-20250630 (https://download.01.org/0day-ci/archive/20250630/202506301119.CV6LBf9T-lkp@intel.com/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250630/202506301119.CV6LBf9T-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/202506301119.CV6LBf9T-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from drivers/staging/gpib/eastwood/fluke_gpib.c:10: In file included from drivers/staging/gpib/eastwood/fluke_gpib.h:9: In file included from include/linux/dmaengine.h:8: In file included from include/linux/device.h:32: In file included from include/linux/device/driver.h:21: In file included from include/linux/module.h:19: In file included from include/linux/elf.h:6: In file included from arch/s390/include/asm/elf.h:181: In file included from arch/s390/include/asm/mmu_context.h:11: In file included from arch/s390/include/asm/pgalloc.h:18: In file included from include/linux/mm.h:2213: include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from drivers/staging/gpib/eastwood/fluke_gpib.c:10: In file included from drivers/staging/gpib/eastwood/fluke_gpib.h:9: In file included from include/linux/dmaengine.h:12: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:93: include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 548 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) | ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' 102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) | ^ In file included from drivers/staging/gpib/eastwood/fluke_gpib.c:10: In file included from drivers/staging/gpib/eastwood/fluke_gpib.h:9: In file included from include/linux/dmaengine.h:12: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:93: include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) | ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' 115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) | ^ In file included from drivers/staging/gpib/eastwood/fluke_gpib.c:10: In file included from drivers/staging/gpib/eastwood/fluke_gpib.h:9: In file included from include/linux/dmaengine.h:12: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:93: include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 585 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 693 | readsb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 701 | readsw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 709 | readsl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 718 | writesb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 727 | writesw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 736 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ drivers/staging/gpib/eastwood/fluke_gpib.c:196:23: warning: variable 'nec_priv' set but not used [-Wunused-but-set-variable] 196 | struct nec7210_priv *nec_priv; | ^ >> drivers/staging/gpib/eastwood/fluke_gpib.c:1013:21: error: call to undeclared function 'ioremap'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1013 | nec_priv->iobase = ioremap(e_priv->gpib_iomem_res->start, | ^ >> drivers/staging/gpib/eastwood/fluke_gpib.c:1013:19: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion] 1013 | nec_priv->iobase = ioremap(e_priv->gpib_iomem_res->start, | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1014 | resource_size(e_priv->gpib_iomem_res)); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/staging/gpib/eastwood/fluke_gpib.c:1050:33: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion] 1050 | e_priv->write_transfer_counter = ioremap(e_priv->write_transfer_counter_res->start, | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1051 | resource_size(e_priv->write_transfer_counter_res)); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 14 warnings and 3 errors generated. vim +/ioremap +1013 drivers/staging/gpib/eastwood/fluke_gpib.c 55936779f496129 Dave Penkler 2024-09-18 973 55936779f496129 Dave Penkler 2024-09-18 974 static int fluke_attach_impl(gpib_board_t *board, const gpib_board_config_t *config, 55936779f496129 Dave Penkler 2024-09-18 975 unsigned int handshake_mode) 55936779f496129 Dave Penkler 2024-09-18 976 { 55936779f496129 Dave Penkler 2024-09-18 977 struct fluke_priv *e_priv; 55936779f496129 Dave Penkler 2024-09-18 978 struct nec7210_priv *nec_priv; 55936779f496129 Dave Penkler 2024-09-18 979 int isr_flags = 0; 55936779f496129 Dave Penkler 2024-09-18 980 int retval; 55936779f496129 Dave Penkler 2024-09-18 981 int irq; 55936779f496129 Dave Penkler 2024-09-18 982 struct resource *res; 55936779f496129 Dave Penkler 2024-09-18 983 dma_cap_mask_t dma_cap; 55936779f496129 Dave Penkler 2024-09-18 984 55936779f496129 Dave Penkler 2024-09-18 985 if (!fluke_gpib_pdev) { 55936779f496129 Dave Penkler 2024-09-18 986 pr_err("No gpib platform device was found, attach failed.\n"); 55936779f496129 Dave Penkler 2024-09-18 987 return -ENODEV; 55936779f496129 Dave Penkler 2024-09-18 988 } 55936779f496129 Dave Penkler 2024-09-18 989 55936779f496129 Dave Penkler 2024-09-18 990 retval = fluke_generic_attach(board); 55936779f496129 Dave Penkler 2024-09-18 991 if (retval) 55936779f496129 Dave Penkler 2024-09-18 992 return retval; 55936779f496129 Dave Penkler 2024-09-18 993 55936779f496129 Dave Penkler 2024-09-18 994 e_priv = board->private_data; 55936779f496129 Dave Penkler 2024-09-18 995 nec_priv = &e_priv->nec7210_priv; 55936779f496129 Dave Penkler 2024-09-18 996 nec_priv->offset = fluke_reg_offset; 55936779f496129 Dave Penkler 2024-09-18 997 board->dev = &fluke_gpib_pdev->dev; 55936779f496129 Dave Penkler 2024-09-18 998 55936779f496129 Dave Penkler 2024-09-18 999 res = platform_get_resource(fluke_gpib_pdev, IORESOURCE_MEM, 0); 55936779f496129 Dave Penkler 2024-09-18 1000 if (!res) { 55936779f496129 Dave Penkler 2024-09-18 1001 dev_err(&fluke_gpib_pdev->dev, "Unable to locate mmio resource for cb7210 gpib\n"); 55936779f496129 Dave Penkler 2024-09-18 1002 return -ENODEV; 55936779f496129 Dave Penkler 2024-09-18 1003 } 55936779f496129 Dave Penkler 2024-09-18 1004 55936779f496129 Dave Penkler 2024-09-18 1005 if (request_mem_region(res->start, 55936779f496129 Dave Penkler 2024-09-18 1006 resource_size(res), 55936779f496129 Dave Penkler 2024-09-18 1007 fluke_gpib_pdev->name) == NULL) { 55936779f496129 Dave Penkler 2024-09-18 1008 dev_err(&fluke_gpib_pdev->dev, "cannot claim registers\n"); 55936779f496129 Dave Penkler 2024-09-18 1009 return -ENXIO; 55936779f496129 Dave Penkler 2024-09-18 1010 } 55936779f496129 Dave Penkler 2024-09-18 1011 e_priv->gpib_iomem_res = res; 55936779f496129 Dave Penkler 2024-09-18 1012 55936779f496129 Dave Penkler 2024-09-18 @1013 nec_priv->iobase = ioremap(e_priv->gpib_iomem_res->start, 55936779f496129 Dave Penkler 2024-09-18 1014 resource_size(e_priv->gpib_iomem_res)); 55936779f496129 Dave Penkler 2024-09-18 1015 pr_info("gpib: iobase %lx remapped to %p, length=%d\n", 55936779f496129 Dave Penkler 2024-09-18 1016 (unsigned long)e_priv->gpib_iomem_res->start, 55936779f496129 Dave Penkler 2024-09-18 1017 nec_priv->iobase, (int)resource_size(e_priv->gpib_iomem_res)); 55936779f496129 Dave Penkler 2024-09-18 1018 if (!nec_priv->iobase) { 55936779f496129 Dave Penkler 2024-09-18 1019 dev_err(&fluke_gpib_pdev->dev, "Could not map I/O memory\n"); 55936779f496129 Dave Penkler 2024-09-18 1020 return -ENOMEM; 55936779f496129 Dave Penkler 2024-09-18 1021 } 55936779f496129 Dave Penkler 2024-09-18 1022 55936779f496129 Dave Penkler 2024-09-18 1023 res = platform_get_resource(fluke_gpib_pdev, IORESOURCE_MEM, 1); 55936779f496129 Dave Penkler 2024-09-18 1024 if (!res) { 55936779f496129 Dave Penkler 2024-09-18 1025 dev_err(&fluke_gpib_pdev->dev, "Unable to locate mmio resource for gpib dma port\n"); 55936779f496129 Dave Penkler 2024-09-18 1026 return -ENODEV; 55936779f496129 Dave Penkler 2024-09-18 1027 } 55936779f496129 Dave Penkler 2024-09-18 1028 if (request_mem_region(res->start, 55936779f496129 Dave Penkler 2024-09-18 1029 resource_size(res), 55936779f496129 Dave Penkler 2024-09-18 1030 fluke_gpib_pdev->name) == NULL) { 55936779f496129 Dave Penkler 2024-09-18 1031 dev_err(&fluke_gpib_pdev->dev, "cannot claim registers\n"); 55936779f496129 Dave Penkler 2024-09-18 1032 return -ENXIO; 55936779f496129 Dave Penkler 2024-09-18 1033 } 55936779f496129 Dave Penkler 2024-09-18 1034 e_priv->dma_port_res = res; 55936779f496129 Dave Penkler 2024-09-18 1035 55936779f496129 Dave Penkler 2024-09-18 1036 res = platform_get_resource(fluke_gpib_pdev, IORESOURCE_MEM, 2); 55936779f496129 Dave Penkler 2024-09-18 1037 if (!res) { 55936779f496129 Dave Penkler 2024-09-18 1038 dev_err(&fluke_gpib_pdev->dev, "Unable to locate mmio resource for write transfer counter\n"); 55936779f496129 Dave Penkler 2024-09-18 1039 return -ENODEV; 55936779f496129 Dave Penkler 2024-09-18 1040 } 55936779f496129 Dave Penkler 2024-09-18 1041 55936779f496129 Dave Penkler 2024-09-18 1042 if (request_mem_region(res->start, 55936779f496129 Dave Penkler 2024-09-18 1043 resource_size(res), 55936779f496129 Dave Penkler 2024-09-18 1044 fluke_gpib_pdev->name) == NULL) { 55936779f496129 Dave Penkler 2024-09-18 1045 dev_err(&fluke_gpib_pdev->dev, "cannot claim registers\n"); 55936779f496129 Dave Penkler 2024-09-18 1046 return -ENXIO; 55936779f496129 Dave Penkler 2024-09-18 1047 } 55936779f496129 Dave Penkler 2024-09-18 1048 e_priv->write_transfer_counter_res = res; 55936779f496129 Dave Penkler 2024-09-18 1049 55936779f496129 Dave Penkler 2024-09-18 1050 e_priv->write_transfer_counter = ioremap(e_priv->write_transfer_counter_res->start, 55936779f496129 Dave Penkler 2024-09-18 1051 resource_size(e_priv->write_transfer_counter_res)); 55936779f496129 Dave Penkler 2024-09-18 1052 pr_info("gpib: write transfer counter %lx remapped to %p, length=%d\n", 55936779f496129 Dave Penkler 2024-09-18 1053 (unsigned long)e_priv->write_transfer_counter_res->start, 55936779f496129 Dave Penkler 2024-09-18 1054 e_priv->write_transfer_counter, 55936779f496129 Dave Penkler 2024-09-18 1055 (int)resource_size(e_priv->write_transfer_counter_res)); 55936779f496129 Dave Penkler 2024-09-18 1056 if (!e_priv->write_transfer_counter) { 55936779f496129 Dave Penkler 2024-09-18 1057 dev_err(&fluke_gpib_pdev->dev, "Could not map I/O memory\n"); 55936779f496129 Dave Penkler 2024-09-18 1058 return -ENOMEM; 55936779f496129 Dave Penkler 2024-09-18 1059 } 55936779f496129 Dave Penkler 2024-09-18 1060 55936779f496129 Dave Penkler 2024-09-18 1061 irq = platform_get_irq(fluke_gpib_pdev, 0); 55936779f496129 Dave Penkler 2024-09-18 1062 pr_info("gpib: irq %d\n", irq); 55936779f496129 Dave Penkler 2024-09-18 1063 if (irq < 0) { 55936779f496129 Dave Penkler 2024-09-18 1064 dev_err(&fluke_gpib_pdev->dev, "fluke_gpib: request for IRQ failed\n"); 55936779f496129 Dave Penkler 2024-09-18 1065 return -EBUSY; 55936779f496129 Dave Penkler 2024-09-18 1066 } 55936779f496129 Dave Penkler 2024-09-18 1067 retval = request_irq(irq, fluke_gpib_interrupt, isr_flags, fluke_gpib_pdev->name, board); 55936779f496129 Dave Penkler 2024-09-18 1068 if (retval) { 55936779f496129 Dave Penkler 2024-09-18 1069 dev_err(&fluke_gpib_pdev->dev, 55936779f496129 Dave Penkler 2024-09-18 1070 "cannot register interrupt handler err=%d\n", 55936779f496129 Dave Penkler 2024-09-18 1071 retval); 55936779f496129 Dave Penkler 2024-09-18 1072 return retval; 55936779f496129 Dave Penkler 2024-09-18 1073 } 55936779f496129 Dave Penkler 2024-09-18 1074 e_priv->irq = irq; 55936779f496129 Dave Penkler 2024-09-18 1075 55936779f496129 Dave Penkler 2024-09-18 1076 dma_cap_zero(dma_cap); 55936779f496129 Dave Penkler 2024-09-18 1077 dma_cap_set(DMA_SLAVE, dma_cap); 55936779f496129 Dave Penkler 2024-09-18 1078 e_priv->dma_channel = dma_request_channel(dma_cap, gpib_dma_channel_filter, NULL); 55936779f496129 Dave Penkler 2024-09-18 1079 if (!e_priv->dma_channel) { 55936779f496129 Dave Penkler 2024-09-18 1080 pr_err("fluke_gpib: failed to allocate a dma channel.\n"); 55936779f496129 Dave Penkler 2024-09-18 1081 // we don't error out here because unaccel interface will still 55936779f496129 Dave Penkler 2024-09-18 1082 // work without dma 55936779f496129 Dave Penkler 2024-09-18 1083 } 55936779f496129 Dave Penkler 2024-09-18 1084 55936779f496129 Dave Penkler 2024-09-18 1085 return fluke_init(e_priv, board, handshake_mode); 55936779f496129 Dave Penkler 2024-09-18 1086 } 55936779f496129 Dave Penkler 2024-09-18 1087 :::::: The code at line 1013 was first introduced by commit :::::: 55936779f4961299efa99a6843c8ff3b019d3858 staging: gpib: Add Fluke cda based cards GPIB driver :::::: TO: Dave Penkler :::::: CC: Greg Kroah-Hartman -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki