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Sun, 14 Aug 2022 16:12:03 +0000 Date: Mon, 15 Aug 2022 00:11:22 +0800 From: kernel test robot To: Aswath Govindraju Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Vinod Koul Subject: drivers/mux/mmio.c:76:34: error: storage size of 'field' isn't known Message-ID: <202208150000.q01BOnro-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Aswath, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: aea23e7c464bfdec04b52cf61edb62030e9e0d0a commit: e4d4371253029528c02bfb43a46c252e1c3d035f phy: phy-can-transceiver: Add support for setting mux date: 4 months ago config: s390-randconfig-r013-20220803 (https://download.01.org/0day-ci/archive/20220815/202208150000.q01BOnro-lkp@intel.com/config) compiler: s390-linux-gcc (GCC) 12.1.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4d4371253029528c02bfb43a46c252e1c3d035f git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout e4d4371253029528c02bfb43a46c252e1c3d035f # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/mux/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All errors (new ones prefixed by >>): drivers/mux/mmio.c: In function 'mux_mmio_probe': >> drivers/mux/mmio.c:76:34: error: storage size of 'field' isn't known 76 | struct reg_field field; | ^~~~~ In file included from include/linux/bits.h:22, from include/linux/bitops.h:6, from drivers/mux/mmio.c:8: >> include/linux/bits.h:24:28: error: first argument to '__builtin_choose_expr' not a constant 24 | (BUILD_BUG_ON_ZERO(__builtin_choose_expr( \ | ^~~~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:16:62: note: in definition of macro 'BUILD_BUG_ON_ZERO' 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:38:10: note: in expansion of macro 'GENMASK_INPUT_CHECK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/mux/mmio.c:96:29: note: in expansion of macro 'GENMASK' 96 | if (mask != GENMASK(field.msb, field.lsb)) { | ^~~~~~~ include/linux/build_bug.h:16:51: error: bit-field '' width not an integer constant 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/bits.h:24:10: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 24 | (BUILD_BUG_ON_ZERO(__builtin_choose_expr( \ | ^~~~~~~~~~~~~~~~~ include/linux/bits.h:38:10: note: in expansion of macro 'GENMASK_INPUT_CHECK' 38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l)) | ^~~~~~~~~~~~~~~~~~~ drivers/mux/mmio.c:96:29: note: in expansion of macro 'GENMASK' 96 | if (mask != GENMASK(field.msb, field.lsb)) { | ^~~~~~~ >> drivers/mux/mmio.c:102:29: error: implicit declaration of function 'devm_regmap_field_alloc' [-Werror=implicit-function-declaration] 102 | fields[i] = devm_regmap_field_alloc(dev, regmap, field); | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/mux/mmio.c:76:34: warning: unused variable 'field' [-Wunused-variable] 76 | struct reg_field field; | ^~~~~ cc1: some warnings being treated as errors vim +76 drivers/mux/mmio.c 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 35 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 36 static int mux_mmio_probe(struct platform_device *pdev) 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 37 { 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 38 struct device *dev = &pdev->dev; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 39 struct device_node *np = dev->of_node; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 40 struct regmap_field **fields; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 41 struct mux_chip *mux_chip; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 42 struct regmap *regmap; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 43 int num_fields; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 44 int ret; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 45 int i; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 46 8ecfaca7926f4bb drivers/mux/mmio.c Pankaj Bansal 2019-06-12 47 if (of_device_is_compatible(np, "mmio-mux")) 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 48 regmap = syscon_node_to_regmap(np->parent); 8ecfaca7926f4bb drivers/mux/mmio.c Pankaj Bansal 2019-06-12 49 else 8ecfaca7926f4bb drivers/mux/mmio.c Pankaj Bansal 2019-06-12 50 regmap = dev_get_regmap(dev->parent, NULL) ?: ERR_PTR(-ENODEV); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 51 if (IS_ERR(regmap)) { 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 52 ret = PTR_ERR(regmap); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 53 dev_err(dev, "failed to get regmap: %d\n", ret); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 54 return ret; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 55 } 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 56 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 57 ret = of_property_count_u32_elems(np, "mux-reg-masks"); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 58 if (ret == 0 || ret % 2) 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 59 ret = -EINVAL; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 60 if (ret < 0) { 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 61 dev_err(dev, "mux-reg-masks property missing or invalid: %d\n", 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 62 ret); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 63 return ret; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 64 } 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 65 num_fields = ret / 2; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 66 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 67 mux_chip = devm_mux_chip_alloc(dev, num_fields, num_fields * 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 68 sizeof(*fields)); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 69 if (IS_ERR(mux_chip)) 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 70 return PTR_ERR(mux_chip); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 71 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 72 fields = mux_chip_priv(mux_chip); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 73 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 74 for (i = 0; i < num_fields; i++) { 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 75 struct mux_control *mux = &mux_chip->mux[i]; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 @76 struct reg_field field; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 77 s32 idle_state = MUX_IDLE_AS_IS; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 78 u32 reg, mask; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 79 int bits; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 80 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 81 ret = of_property_read_u32_index(np, "mux-reg-masks", 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 82 2 * i, ®); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 83 if (!ret) 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 84 ret = of_property_read_u32_index(np, "mux-reg-masks", 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 85 2 * i + 1, &mask); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 86 if (ret < 0) { 73726380a26fa1e 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", 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 88 i, ret); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 89 return ret; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 90 } 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 91 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 92 field.reg = reg; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 93 field.msb = fls(mask) - 1; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 94 field.lsb = ffs(mask) - 1; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 95 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 96 if (mask != GENMASK(field.msb, field.lsb)) { 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 97 dev_err(dev, "bitfield %d: invalid mask 0x%x\n", 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 98 i, mask); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 99 return -EINVAL; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 100 } 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 101 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 @102 fields[i] = devm_regmap_field_alloc(dev, regmap, field); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 103 if (IS_ERR(fields[i])) { 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 104 ret = PTR_ERR(fields[i]); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 105 dev_err(dev, "bitfield %d: failed allocate: %d\n", 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 106 i, ret); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 107 return ret; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 108 } 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 109 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 110 bits = 1 + field.msb - field.lsb; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 111 mux->states = 1 << bits; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 112 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 113 of_property_read_u32_index(np, "idle-states", i, 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 114 (u32 *)&idle_state); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 115 if (idle_state != MUX_IDLE_AS_IS) { 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 116 if (idle_state < 0 || idle_state >= mux->states) { 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 117 dev_err(dev, "bitfield: %d: out of range idle state %d\n", 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 118 i, idle_state); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 119 return -EINVAL; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 120 } 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 121 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 122 mux->idle_state = idle_state; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 123 } 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 124 } 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 125 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 126 mux_chip->ops = &mux_mmio_ops; 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 127 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 128 return devm_mux_chip_register(dev, mux_chip); 73726380a26fa1e drivers/mux/mux-mmio.c Philipp Zabel 2017-05-14 129 } 73726380a26fa1e 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://01.org/lkp