tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.4.y head: 48a16935fdcdb0926ed5e743a9d8d238bbc9c243 commit: 5d784a2d4a0e302f51f6d96f44f5c21de47d6f19 [9951/9999] libata: have ata_scsi_rw_xlat() fail invalid passthrough requests config: powerpc-buildonly-randconfig-r002-20210822 (attached as .config) compiler: powerpc-linux-gcc (GCC) 7.5.0 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/stable/linux-stable-rc.gi... git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc linux-4.4.y git checkout 5d784a2d4a0e302f51f6d96f44f5c21de47d6f19 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): ^~~~~~~~~~~~~~~ include/linux/blk-mq.h: In function 'blk_mq_rq_from_pdu': include/linux/blk-mq.h:247:22: error: invalid application of 'sizeof' to incomplete type 'struct request' return pdu - sizeof(struct request); ^~~~~~ include/linux/blk-mq.h: In function 'blk_mq_rq_to_pdu': include/linux/blk-mq.h:251:12: error: invalid use of undefined type 'struct request' return rq + 1; ^ In file included from drivers/ata/libata-scsi.c:43:0: include/scsi/scsi_cmnd.h: At top level: include/scsi/scsi_cmnd.h:30:25: warning: "BLK_MAX_CDB" is not defined, evaluates to 0 [-Wundef] #if (MAX_COMMAND_SIZE > BLK_MAX_CDB) ^~~~~~~~~~~ include/scsi/scsi_cmnd.h:31:3: error: #error MAX_COMMAND_SIZE can not be bigger than BLK_MAX_CDB # error MAX_COMMAND_SIZE can not be bigger than BLK_MAX_CDB ^~~~~ include/scsi/scsi_cmnd.h: In function 'scsi_cmd_to_driver': include/scsi/scsi_cmnd.h:155:45: error: dereferencing pointer to incomplete type 'struct request' return *(struct scsi_driver **)cmd->request->rq_disk->private_data; ^~ include/scsi/scsi_cmnd.h: In function 'scsi_bidi_cmnd': include/scsi/scsi_cmnd.h:201:9: error: implicit declaration of function 'blk_bidi_rq' [-Werror=implicit-function-declaration] return blk_bidi_rq(cmd->request) && ^~~~~~~~~~~ include/scsi/scsi_cmnd.h: In function 'scsi_get_lba': include/scsi/scsi_cmnd.h:294:9: error: implicit declaration of function 'blk_rq_pos' [-Werror=implicit-function-declaration] return blk_rq_pos(scmd->request); ^~~~~~~~~~ In file included from drivers/ata/libata-scsi.c:44:0: include/scsi/scsi_eh.h: At top level: include/scsi/scsi_eh.h:41:24: error: 'BLK_MAX_CDB' undeclared here (not in a function); did you mean 'BLK_MQ_H'? unsigned char eh_cmnd[BLK_MAX_CDB]; ^~~~~~~~~~~ BLK_MQ_H In file included from include/linux/libata.h:35:0, from drivers/ata/libata-scsi.c:48: include/linux/ata.h: In function 'ata_id_is_lba_capacity_ok': include/linux/ata.h:950:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] (lba_sects >= 16383 * 63 * id[ATA_ID_HEADS])) ^~ In file included from drivers/ata/libata-scsi.c:48:0: include/linux/libata.h: In function 'ata_msg_init': include/linux/libata.h:112:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (dval < 0 || dval >= (sizeof(u32) * 8)) ^~ drivers/ata/libata-scsi.c: In function 'ata_scsi_park_store': drivers/ata/libata-scsi.c:267:17: warning: signed and unsigned type in conditional expression [-Wsign-compare] return rc ? rc : len; ^ drivers/ata/libata-scsi.c: In function 'ata_sas_scsi_ioctl': drivers/ata/libata-scsi.c:699:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (val != ata_ioc32(ap)) ^~ In file included from include/asm-generic/bug.h:4:0, from arch/powerpc/include/asm/bug.h:127, from include/linux/bug.h:4, from include/linux/mmdebug.h:4, from include/linux/gfp.h:4, from include/linux/slab.h:14, from drivers/ata/libata-scsi.c:36: drivers/ata/libata-scsi.c: In function 'atapi_drain_needed': drivers/ata/libata-scsi.c:1124:29: error: 'REQ_TYPE_BLOCK_PC' undeclared (first use in this function) if (likely(rq->cmd_type != REQ_TYPE_BLOCK_PC)) ^ include/linux/compiler.h:181:40: note: in definition of macro 'likely' # define likely(x) __builtin_expect(!!(x), 1) ^ drivers/ata/libata-scsi.c:1124:29: note: each undeclared identifier is reported only once for each function it appears in if (likely(rq->cmd_type != REQ_TYPE_BLOCK_PC)) ^ include/linux/compiler.h:181:40: note: in definition of macro 'likely' # define likely(x) __builtin_expect(!!(x), 1) ^ drivers/ata/libata-scsi.c:1127:7: error: implicit declaration of function 'blk_rq_bytes'; did you mean 'clear_bits'? [-Werror=implicit-function-declaration] if (!blk_rq_bytes(rq) || (rq->cmd_flags & REQ_WRITE)) ^~~~~~~~~~~~ clear_bits drivers/ata/libata-scsi.c: In function 'ata_scsi_dev_config': drivers/ata/libata-scsi.c:1142:2: error: implicit declaration of function 'blk_queue_max_hw_sectors' [-Werror=implicit-function-declaration] blk_queue_max_hw_sectors(q, dev->max_sectors); ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/ata/libata-scsi.c:1150:3: error: implicit declaration of function 'blk_queue_update_dma_pad' [-Werror=implicit-function-declaration] blk_queue_update_dma_pad(q, ATA_DMA_PAD_SZ - 1); ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/ata/libata-scsi.c:1153:35: error: dereferencing pointer to incomplete type 'struct request_queue' buf = kmalloc(ATAPI_MAX_DRAIN, q->bounce_gfp | GFP_KERNEL); ^~ drivers/ata/libata-scsi.c:1159:3: error: implicit declaration of function 'blk_queue_dma_drain' [-Werror=implicit-function-declaration] blk_queue_dma_drain(q, atapi_drain_needed, buf, ATAPI_MAX_DRAIN); ^~~~~~~~~~~~~~~~~~~ drivers/ata/libata-scsi.c:1177:2: error: implicit declaration of function 'blk_queue_update_dma_alignment'; did you mean '__assume_page_alignment'? [-Werror=implicit-function-declaration] blk_queue_update_dma_alignment(q, sdev->sector_size - 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ __assume_page_alignment drivers/ata/libata-scsi.c:1190:2: error: implicit declaration of function 'blk_queue_flush_queueable'; did you mean 'blk_needs_flush_plug'? [-Werror=implicit-function-declaration] blk_queue_flush_queueable(q, false); ^~~~~~~~~~~~~~~~~~~~~~~~~ blk_needs_flush_plug drivers/ata/libata-scsi.c: In function 'ata_check_nblocks': if (!blk_rq_is_passthrough(rq)) ^~~~~~~~~~~~~~~~~~~~~ drivers/ata/libata-scsi.c: In function 'ata_scsi_mode_select_xlat': drivers/ata/libata-scsi.c:3306:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (!scsi_sg_count(scmd) || scsi_sglist(scmd)->length < len) ^ drivers/ata/libata-scsi.c:3312:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (len < hdr_len) ^ drivers/ata/libata-scsi.c:3322:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (len < bd_len) ^ drivers/ata/libata-scsi.c:3358:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (pg_len > len) ^ drivers/ata/libata-scsi.c:3375:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (len > pg_len) ^ In file included from include/asm-generic/bug.h:4:0, from arch/powerpc/include/asm/bug.h:127, from include/linux/bug.h:4, from include/linux/mmdebug.h:4, from include/linux/gfp.h:4, from include/linux/slab.h:14, from drivers/ata/libata-scsi.c:36: drivers/ata/libata-scsi.c: In function '__ata_scsi_queuecmd': drivers/ata/libata-scsi.c:3497:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] len > dev->cdb_len || ^ include/linux/compiler.h:182:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ drivers/ata/libata-scsi.c: In function 'ata_scsi_add_hosts': drivers/ata/libata-scsi.c:3695:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < host->n_ports; i++) { ^ drivers/ata/libata-scsi.c: In function 'ata_scsi_user_scan': drivers/ata/libata-scsi.c:4027:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (lun != SCAN_WILD_CARD && lun) ^~ drivers/ata/libata-scsi.c:4031:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (channel != SCAN_WILD_CARD && channel) ^~ drivers/ata/libata-scsi.c:4035:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (id != SCAN_WILD_CARD && id) ^~ drivers/ata/libata-scsi.c: In function 'atapi_drain_needed': drivers/ata/libata-scsi.c:1131:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ cc1: some warnings being treated as errors vim +/blk_rq_is_passthrough +1662 drivers/ata/libata-scsi.c 1656 1657 static bool ata_check_nblocks(struct scsi_cmnd *scmd, u32 n_blocks) 1658 { 1659 struct request *rq = scmd->request; 1660 u32 req_blocks; 1661 1663 return true; 1664 1665 req_blocks = blk_rq_bytes(rq) / scmd->device->sector_size; 1666 if (n_blocks > req_blocks) 1667 return false; 1668 1669 return true; 1670 } 1671 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org