tree: git://git.infradead.org/users/hch/block.git blkdev.h-includes head: db08f634bead64da6de80830782f3c339fc41b11 commit: 9571c3f0ec1966546513f3be443b4abe3a7b4666 [15/16] block: move integrity handling out of blkdev.h config: riscv-randconfig-r036-20210725 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project c63dbd850182797bc4b76124d08e1c320ab2365d) 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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu git remote add hch-block git://git.infradead.org/users/hch/block.git git fetch --no-tags hch-block blkdev.h-includes git checkout 9571c3f0ec1966546513f3be443b4abe3a7b4666 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=riscv SHELL=/bin/bash drivers/mmc/core/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): >> drivers/mmc/core/sd.c:1016:21: error: variable has incomplete type 'struct scatterlist' struct scatterlist sg; ^ include/linux/mmc/core.h:139:9: note: forward declaration of 'struct scatterlist' struct scatterlist *sg; /* I/O scatter list */ ^ >> drivers/mmc/core/sd.c:1045:2: error: implicit declaration of function 'sg_init_one' [-Werror,-Wimplicit-function-declaration] sg_init_one(&sg, reg_buf, 512); ^ 2 errors generated. vim +1016 drivers/mmc/core/sd.c 6a11fc47f175c8 Adrian Hunter 2017-09-25 1008 2c5d4276903804 Ulf Hansson 2021-05-04 1009 static int sd_write_ext_reg(struct mmc_card *card, u8 fno, u8 page, u16 offset, 2c5d4276903804 Ulf Hansson 2021-05-04 1010 u8 reg_data) 2c5d4276903804 Ulf Hansson 2021-05-04 1011 { 2c5d4276903804 Ulf Hansson 2021-05-04 1012 struct mmc_host *host = card->host; 2c5d4276903804 Ulf Hansson 2021-05-04 1013 struct mmc_request mrq = {}; 2c5d4276903804 Ulf Hansson 2021-05-04 1014 struct mmc_command cmd = {}; 2c5d4276903804 Ulf Hansson 2021-05-04 1015 struct mmc_data data = {}; 2c5d4276903804 Ulf Hansson 2021-05-04 @1016 struct scatterlist sg; 2c5d4276903804 Ulf Hansson 2021-05-04 1017 u8 *reg_buf; 2c5d4276903804 Ulf Hansson 2021-05-04 1018 2c5d4276903804 Ulf Hansson 2021-05-04 1019 reg_buf = kzalloc(512, GFP_KERNEL); 2c5d4276903804 Ulf Hansson 2021-05-04 1020 if (!reg_buf) 2c5d4276903804 Ulf Hansson 2021-05-04 1021 return -ENOMEM; 2c5d4276903804 Ulf Hansson 2021-05-04 1022 2c5d4276903804 Ulf Hansson 2021-05-04 1023 mrq.cmd = &cmd; 2c5d4276903804 Ulf Hansson 2021-05-04 1024 mrq.data = &data; 2c5d4276903804 Ulf Hansson 2021-05-04 1025 2c5d4276903804 Ulf Hansson 2021-05-04 1026 /* 2c5d4276903804 Ulf Hansson 2021-05-04 1027 * Arguments of CMD49: 2c5d4276903804 Ulf Hansson 2021-05-04 1028 * [31:31] MIO (0 = memory). 2c5d4276903804 Ulf Hansson 2021-05-04 1029 * [30:27] FNO (function number). 2c5d4276903804 Ulf Hansson 2021-05-04 1030 * [26:26] MW - mask write mode (0 = disable). 2c5d4276903804 Ulf Hansson 2021-05-04 1031 * [25:18] page number. 2c5d4276903804 Ulf Hansson 2021-05-04 1032 * [17:9] offset address. 2c5d4276903804 Ulf Hansson 2021-05-04 1033 * [8:0] length (0 = 1 byte). 2c5d4276903804 Ulf Hansson 2021-05-04 1034 */ 2c5d4276903804 Ulf Hansson 2021-05-04 1035 cmd.arg = fno << 27 | page << 18 | offset << 9; 2c5d4276903804 Ulf Hansson 2021-05-04 1036 2c5d4276903804 Ulf Hansson 2021-05-04 1037 /* The first byte in the buffer is the data to be written. */ 2c5d4276903804 Ulf Hansson 2021-05-04 1038 reg_buf[0] = reg_data; 2c5d4276903804 Ulf Hansson 2021-05-04 1039 2c5d4276903804 Ulf Hansson 2021-05-04 1040 data.flags = MMC_DATA_WRITE; 2c5d4276903804 Ulf Hansson 2021-05-04 1041 data.blksz = 512; 2c5d4276903804 Ulf Hansson 2021-05-04 1042 data.blocks = 1; 2c5d4276903804 Ulf Hansson 2021-05-04 1043 data.sg = &sg; 2c5d4276903804 Ulf Hansson 2021-05-04 1044 data.sg_len = 1; 2c5d4276903804 Ulf Hansson 2021-05-04 @1045 sg_init_one(&sg, reg_buf, 512); 2c5d4276903804 Ulf Hansson 2021-05-04 1046 2c5d4276903804 Ulf Hansson 2021-05-04 1047 cmd.opcode = SD_WRITE_EXTR_SINGLE; 2c5d4276903804 Ulf Hansson 2021-05-04 1048 cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 2c5d4276903804 Ulf Hansson 2021-05-04 1049 2c5d4276903804 Ulf Hansson 2021-05-04 1050 mmc_set_data_timeout(&data, card); 2c5d4276903804 Ulf Hansson 2021-05-04 1051 mmc_wait_for_req(host, &mrq); 2c5d4276903804 Ulf Hansson 2021-05-04 1052 2c5d4276903804 Ulf Hansson 2021-05-04 1053 kfree(reg_buf); 2c5d4276903804 Ulf Hansson 2021-05-04 1054 2c5d4276903804 Ulf Hansson 2021-05-04 1055 /* 2c5d4276903804 Ulf Hansson 2021-05-04 1056 * Note that, the SD card is allowed to signal busy on DAT0 up to 1s 2c5d4276903804 Ulf Hansson 2021-05-04 1057 * after the CMD49. Although, let's leave this to be managed by the 2c5d4276903804 Ulf Hansson 2021-05-04 1058 * caller. 2c5d4276903804 Ulf Hansson 2021-05-04 1059 */ 2c5d4276903804 Ulf Hansson 2021-05-04 1060 2c5d4276903804 Ulf Hansson 2021-05-04 1061 if (cmd.error) 2c5d4276903804 Ulf Hansson 2021-05-04 1062 return cmd.error; 2c5d4276903804 Ulf Hansson 2021-05-04 1063 if (data.error) 2c5d4276903804 Ulf Hansson 2021-05-04 1064 return data.error; 2c5d4276903804 Ulf Hansson 2021-05-04 1065 2c5d4276903804 Ulf Hansson 2021-05-04 1066 return 0; 2c5d4276903804 Ulf Hansson 2021-05-04 1067 } 2c5d4276903804 Ulf Hansson 2021-05-04 1068 :::::: The code at line 1016 was first introduced by commit :::::: 2c5d42769038045b92160a849aad43c4b3170e2a mmc: core: Add support for Power Off Notification for SD cards :::::: TO: Ulf Hansson :::::: CC: Ulf Hansson --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org