From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EB0573D9E; Sun, 2 Jul 2023 20:06:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1688328411; x=1719864411; h=date:from:to:cc:subject:message-id:mime-version; bh=m7Tnn3iBRte6BDuPLg/jUeGa3Fqcc0ZEH3Det3i8X5w=; b=PXdW2PaMmbyHgwA+hhRsHRGEm28DsFN1lOFtIGjZq3Eb8HX4hKno3rrI xzsGpeZtC5LHnnjtCz0EOXqzEqyqQVOmGHzkxLmm0nn5fwA+qcJZyVtOS hAj/lKmln4P1pEWwLhTNOZwMK9B2uoPWO8zj3z23CKC2ZTlaOqqWZECCK 7OD37LwfBS/ipwHwJItFFsIPyGZiCW/JwWAe2HAA7ISwZ2OTYZru9bSfb SxTv2/Vn0KvUEpFPXrLDbQqmnFwheN6NZi0lHRAfzuBRsMVhjvvCub4M5 bm8Le5zsPUyZVvJRgtdzPEXjQRtaCOVybiDPocDTZh/oOSRQRp/jbo27O g==; X-IronPort-AV: E=McAfee;i="6600,9927,10759"; a="393476135" X-IronPort-AV: E=Sophos;i="6.01,176,1684825200"; d="scan'208";a="393476135" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2023 13:06:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10759"; a="788303134" X-IronPort-AV: E=Sophos;i="6.01,176,1684825200"; d="scan'208";a="788303134" Received: from lkp-server01.sh.intel.com (HELO 783282924a45) ([10.239.97.150]) by fmsmga004.fm.intel.com with ESMTP; 02 Jul 2023 13:06:47 -0700 Received: from kbuild by 783282924a45 with local (Exim 4.96) (envelope-from ) id 1qG3LK-000GrH-2M; Sun, 02 Jul 2023 20:06:46 +0000 Date: Mon, 3 Jul 2023 04:06:27 +0800 From: kernel test robot To: Aswath Govindraju Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Vinod Koul Subject: drivers/mux/mmio.c:76:20: error: variable has incomplete type 'struct reg_field' Message-ID: <202307030449.fwsrHOMh-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 Hi Aswath, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: a901a3568fd26ca9c4a82d8bc5ed5b3ed844d451 commit: e4d4371253029528c02bfb43a46c252e1c3d035f phy: phy-can-transceiver: Add support for setting mux date: 1 year, 3 months ago config: s390-randconfig-r026-20230703 (https://download.01.org/0day-ci/archive/20230703/202307030449.fwsrHOMh-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/20230703/202307030449.fwsrHOMh-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/202307030449.fwsrHOMh-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from drivers/mux/mmio.c:16: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 464 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 477 | 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/mux/mmio.c:16: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 490 | 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/mux/mmio.c:16: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 501 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 511 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 521 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 609 | readsb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 617 | readsw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 625 | readsl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 634 | writesb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 643 | writesw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 652 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ >> drivers/mux/mmio.c:76:20: error: variable has incomplete type 'struct reg_field' 76 | struct reg_field field; | ^ drivers/mux/mmio.c:76:10: note: forward declaration of 'struct reg_field' 76 | struct reg_field field; | ^ >> drivers/mux/mmio.c:102:15: error: call to undeclared function 'devm_regmap_field_alloc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 102 | fields[i] = devm_regmap_field_alloc(dev, regmap, field); | ^ 12 warnings and 2 errors generated. vim +76 drivers/mux/mmio.c 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 35 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 36 static int mux_mmio_probe(struct platform_device *pdev) 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 37 { 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 38 struct device *dev = &pdev->dev; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 39 struct device_node *np = dev->of_node; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 40 struct regmap_field **fields; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 41 struct mux_chip *mux_chip; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 42 struct regmap *regmap; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 43 int num_fields; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 44 int ret; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 45 int i; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 46 8ecfaca7926f4b drivers/mux/mmio.c Pankaj Bansal 2019-06-12 47 if (of_device_is_compatible(np, "mmio-mux")) 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 48 regmap = syscon_node_to_regmap(np->parent); 8ecfaca7926f4b drivers/mux/mmio.c Pankaj Bansal 2019-06-12 49 else 8ecfaca7926f4b drivers/mux/mmio.c Pankaj Bansal 2019-06-12 50 regmap = dev_get_regmap(dev->parent, NULL) ?: ERR_PTR(-ENODEV); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 51 if (IS_ERR(regmap)) { 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 52 ret = PTR_ERR(regmap); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 53 dev_err(dev, "failed to get regmap: %d\n", ret); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 54 return ret; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 55 } 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 56 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 57 ret = of_property_count_u32_elems(np, "mux-reg-masks"); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 58 if (ret == 0 || ret % 2) 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 59 ret = -EINVAL; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 60 if (ret < 0) { 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 61 dev_err(dev, "mux-reg-masks property missing or invalid: %d\n", 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 62 ret); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 63 return ret; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 64 } 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 65 num_fields = ret / 2; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 66 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 67 mux_chip = devm_mux_chip_alloc(dev, num_fields, num_fields * 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 68 sizeof(*fields)); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 69 if (IS_ERR(mux_chip)) 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 70 return PTR_ERR(mux_chip); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 71 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 72 fields = mux_chip_priv(mux_chip); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 73 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 74 for (i = 0; i < num_fields; i++) { 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 75 struct mux_control *mux = &mux_chip->mux[i]; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 @76 struct reg_field field; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 77 s32 idle_state = MUX_IDLE_AS_IS; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 78 u32 reg, mask; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 79 int bits; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 80 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 81 ret = of_property_read_u32_index(np, "mux-reg-masks", 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 82 2 * i, ®); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 83 if (!ret) 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 84 ret = of_property_read_u32_index(np, "mux-reg-masks", 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 85 2 * i + 1, &mask); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 86 if (ret < 0) { 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 87 dev_err(dev, "bitfield %d: failed to read mux-reg-masks property: %d\n", 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 88 i, ret); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 89 return ret; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 90 } 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 91 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 92 field.reg = reg; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 93 field.msb = fls(mask) - 1; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 94 field.lsb = ffs(mask) - 1; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 95 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 96 if (mask != GENMASK(field.msb, field.lsb)) { 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 97 dev_err(dev, "bitfield %d: invalid mask 0x%x\n", 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 98 i, mask); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 99 return -EINVAL; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 100 } 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 101 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 @102 fields[i] = devm_regmap_field_alloc(dev, regmap, field); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 103 if (IS_ERR(fields[i])) { 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 104 ret = PTR_ERR(fields[i]); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 105 dev_err(dev, "bitfield %d: failed allocate: %d\n", 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 106 i, ret); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 107 return ret; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 108 } 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 109 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 110 bits = 1 + field.msb - field.lsb; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 111 mux->states = 1 << bits; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 112 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 113 of_property_read_u32_index(np, "idle-states", i, 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 114 (u32 *)&idle_state); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 115 if (idle_state != MUX_IDLE_AS_IS) { 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 116 if (idle_state < 0 || idle_state >= mux->states) { 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 117 dev_err(dev, "bitfield: %d: out of range idle state %d\n", 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 118 i, idle_state); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 119 return -EINVAL; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 120 } 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 121 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 122 mux->idle_state = idle_state; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 123 } 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 124 } 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 125 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 126 mux_chip->ops = &mux_mmio_ops; 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 127 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 128 return devm_mux_chip_register(dev, mux_chip); 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 129 } 73726380a26fa1 drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 130 :::::: The code at line 76 was first introduced by commit :::::: 73726380a26fa1ed490f30fccee10ed9da28dc0c mux: mmio-based syscon mux controller :::::: TO: Philipp Zabel :::::: CC: Greg Kroah-Hartman -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki