Hi Szuying, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.19 next-20220805] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Szuying-Chen/thunderbolt-thunderbolt-add-vendor-s-NVM-formats/20220805-172732 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b2a88c212e652e94f1e4b635910972ac57ba4e97 config: i386-randconfig-a015 (https://download.01.org/0day-ci/archive/20220807/202208071758.wZC5VHIZ-lkp@xxxxxxxxx/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 26dd42705c2af0b8f6e5d6cdb32c9bd5ed9524eb) 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://github.com/intel-lab-lkp/linux/commit/cc64350d27db3b30e5ceef2b5d6a3c48b9a4d989 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Szuying-Chen/thunderbolt-thunderbolt-add-vendor-s-NVM-formats/20220805-172732 git checkout cc64350d27db3b30e5ceef2b5d6a3c48b9a4d989 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/thunderbolt/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/thunderbolt/nvm.c:75:3: error: expected expression struct tb_nvm *nvm; ^ drivers/thunderbolt/nvm.c:79:3: error: use of undeclared identifier 'nvm' nvm = tb_nvm_alloc(&sw->dev); ^ drivers/thunderbolt/nvm.c:80:14: error: use of undeclared identifier 'nvm' if (IS_ERR(nvm)) { ^ drivers/thunderbolt/nvm.c:81:18: error: use of undeclared identifier 'nvm' ret = PTR_ERR(nvm); ^ drivers/thunderbolt/nvm.c:89:3: error: use of undeclared identifier 'nvm' nvm->vendor.date = (((u8)val) << 0x10 | ((u8)(val >> 0x8)) << 0x8 | (u8)(val >> 0x10)); ^ drivers/thunderbolt/nvm.c:94:3: error: use of undeclared identifier 'nvm' nvm->vendor.customerID = (((u8)val) << 0x8 | ((u8)(val >> 0x8))); ^ drivers/thunderbolt/nvm.c:95:3: error: use of undeclared identifier 'nvm' nvm->vendor.version = (u8)(val >> 0x10); ^ drivers/thunderbolt/nvm.c:97:27: error: use of undeclared identifier 'nvm' ret = tb_nvm_add_active(nvm, nvm_size, tb_switch_nvm_read); ^ drivers/thunderbolt/nvm.c:101:31: error: use of undeclared identifier 'nvm' ret = tb_nvm_add_non_active(nvm, NVM_MAX_SIZE, tb_switch_nvm_write); ^ drivers/thunderbolt/nvm.c:105:13: error: use of undeclared identifier 'nvm' sw->nvm = nvm; ^ drivers/thunderbolt/nvm.c:109:3: error: expected expression unsigned int image_size; ^ drivers/thunderbolt/nvm.c:116:3: error: use of undeclared identifier 'image_size' image_size = sw->nvm->buf_data_size; ^ drivers/thunderbolt/nvm.c:117:7: error: use of undeclared identifier 'image_size'; did you mean 'page_size'? if (image_size < NVM_MIN_SIZE || image_size > NVM_MAX_SIZE) { ^~~~~~~~~~ page_size include/linux/mm.h:927:29: note: 'page_size' declared here static inline unsigned long page_size(struct page *page) ^ drivers/thunderbolt/nvm.c:117:36: error: use of undeclared identifier 'image_size'; did you mean 'page_size'? if (image_size < NVM_MIN_SIZE || image_size > NVM_MAX_SIZE) { ^~~~~~~~~~ page_size include/linux/mm.h:927:29: note: 'page_size' declared here static inline unsigned long page_size(struct page *page) ^ drivers/thunderbolt/nvm.c:121:43: error: use of undeclared identifier 'image_size'; did you mean 'page_size'? ret = usb4_switch_nvm_write(sw, 0, buf, image_size); ^~~~~~~~~~ page_size include/linux/mm.h:927:29: note: 'page_size' declared here static inline unsigned long page_size(struct page *page) ^ >> drivers/thunderbolt/nvm.c:76:7: warning: mixing declarations and code is incompatible with standards before C99 [-Wdeclaration-after-statement] u32 val; ^ 1 warning and 15 errors generated. vim +76 drivers/thunderbolt/nvm.c 62 63 static int tb_nvm_vendor_apply(struct tb_switch *sw, unsigned int handle) 64 { 65 int ret = 0; 66 67 switch (handle) { 68 case 0: 69 if (sw->no_nvm_upgrade) 70 sw->no_nvm_upgrade = false; 71 72 break; 73 74 case 1: 75 struct tb_nvm *nvm; > 76 u32 val; 77 u32 nvm_size; 78 79 nvm = tb_nvm_alloc(&sw->dev); 80 if (IS_ERR(nvm)) { 81 ret = PTR_ERR(nvm); 82 break; 83 } 84 85 ret = usb4_switch_nvm_read(sw, NVM_Date, &val, sizeof(val)); 86 if (ret) 87 break; 88 89 nvm->vendor.date = (((u8)val) << 0x10 | ((u8)(val >> 0x8)) << 0x8 | (u8)(val >> 0x10)); 90 ret = usb4_switch_nvm_read(sw, NVM_CUSTOMER_ID, &val, sizeof(val)); 91 if (ret) 92 break; 93 94 nvm->vendor.customerID = (((u8)val) << 0x8 | ((u8)(val >> 0x8))); 95 nvm->vendor.version = (u8)(val >> 0x10); 96 nvm_size = SZ_512K; 97 ret = tb_nvm_add_active(nvm, nvm_size, tb_switch_nvm_read); 98 if (ret) 99 break; 100 101 ret = tb_nvm_add_non_active(nvm, NVM_MAX_SIZE, tb_switch_nvm_write); 102 if (ret) 103 break; 104 105 sw->nvm = nvm; 106 break; 107 108 case 2: 109 unsigned int image_size; 110 const u8 *buf = sw->nvm->buf; 111 112 if (!buf) { 113 ret = -EINVAL; 114 break; 115 } 116 image_size = sw->nvm->buf_data_size; 117 if (image_size < NVM_MIN_SIZE || image_size > NVM_MAX_SIZE) { 118 ret = -EINVAL; 119 break; 120 } 121 ret = usb4_switch_nvm_write(sw, 0, buf, image_size); 122 if (!ret) 123 sw->nvm->flushed = true; 124 125 break; 126 127 default: 128 break; 129 } 130 131 if ((handle == 1) && (ret != 0)) 132 tb_nvm_free(sw->nvm); 133 134 return ret; 135 } 136 -- 0-DAY CI Kernel Test Service https://01.org/lkp