From 464a00c9e0ad45e3f42ff6ea705491a356df818e Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Tue, 27 Apr 2021 10:30:15 +0200 Subject: [PATCH] scsi: core: Kill DRIVER_SENSE Replace the check for DRIVER_SENSE with a check for scsi_status_is_check_condition(). Audit all callsites to ensure the SAM status is set correctly. For backwards compability move the DRIVER_SENSE definition to sg.h, and update sg, bsg, and scsi_ioctl to set the DRIVER_SENSE driver_status whenever SAM_STAT_CHECK_CONDITION is present. [mkp: fix zeroday srp warning] Link: https://lore.kernel.org/r/20210427083046.31620-10-hare@suse.de Signed-off-by: Hannes Reinecke Signed-off-by: Martin K. Petersen fix --- block/bsg.c | 2 ++ block/scsi_ioctl.c | 2 ++ drivers/ata/libata-scsi.c | 13 ++------ drivers/scsi/NCR5380.c | 2 +- drivers/scsi/advansys.c | 2 -- drivers/scsi/aic7xxx/aic79xx_osm.c | 19 +++++------- drivers/scsi/aic7xxx/aic7xxx_osm.c | 1 - drivers/scsi/arcmsr/arcmsr_hba.c | 1 - drivers/scsi/ch.c | 2 +- drivers/scsi/cxlflash/superpipe.c | 3 +- drivers/scsi/dc395x.c | 13 ++------ drivers/scsi/esp_scsi.c | 4 +-- drivers/scsi/megaraid.c | 8 ++--- drivers/scsi/megaraid/megaraid_mbox.c | 7 ++--- drivers/scsi/megaraid/megaraid_sas_base.c | 2 -- drivers/scsi/megaraid/megaraid_sas_fusion.c | 1 - drivers/scsi/mvumi.c | 1 - drivers/scsi/scsi.c | 7 ----- drivers/scsi/scsi_debug.c | 4 +-- drivers/scsi/scsi_ioctl.c | 3 +- drivers/scsi/scsi_lib.c | 10 ++----- drivers/scsi/scsi_scan.c | 2 +- drivers/scsi/scsi_transport_spi.c | 2 +- drivers/scsi/sd.c | 33 +++++++++++---------- drivers/scsi/sd_zbc.c | 3 +- drivers/scsi/sg.c | 7 +++-- drivers/scsi/stex.c | 4 +-- drivers/scsi/sym53c8xx_2/sym_glue.c | 6 ++-- drivers/scsi/ufs/ufshcd.c | 2 +- drivers/scsi/virtio_scsi.c | 3 +- drivers/scsi/vmw_pvscsi.c | 3 -- drivers/target/loopback/tcm_loop.c | 1 - drivers/usb/storage/cypress_atacb.c | 4 +-- drivers/xen/xen-scsiback.c | 3 +- include/scsi/sg.h | 11 +++++++ 35 files changed, 76 insertions(+), 115 deletions(-) diff --git a/block/bsg.c b/block/bsg.c index bd10922d5cbb..9e6ff0d71d25 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -97,6 +97,8 @@ static int bsg_scsi_complete_rq(struct request *rq, struct sg_io_v4 *hdr) hdr->device_status = sreq->result & 0xff; hdr->transport_status = host_byte(sreq->result); hdr->driver_status = driver_byte(sreq->result); + if (scsi_status_is_check_condition(sreq->result)) + hdr->driver_status = DRIVER_SENSE; hdr->info = 0; if (hdr->device_status || hdr->transport_status || hdr->driver_status) hdr->info |= SG_INFO_CHECK; diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index 48bb4e1ea1e7..eb65bcde166f 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -257,6 +257,8 @@ static int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr, hdr->msg_status = msg_byte(req->result); hdr->host_status = host_byte(req->result); hdr->driver_status = driver_byte(req->result); + if (scsi_status_is_check_condition(hdr->status)) + hdr->driver_status = DRIVER_SENSE; hdr->info = 0; if (hdr->masked_status || hdr->host_status || hdr->driver_status) hdr->info |= SG_INFO_CHECK; diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 61e15a2ce966..31b47ad073ad 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -411,13 +411,12 @@ int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg) rc = cmd_result; goto error; } - if (driver_byte(cmd_result) == DRIVER_SENSE) {/* sense data available */ + if (scsi_sense_valid(&sshdr)) {/* sense data available */ u8 *desc = sensebuf + 8; - cmd_result &= ~(0xFF<<24); /* DRIVER_SENSE is not an error */ /* If we set cc then ATA pass-through will cause a * check condition even if no error. Filter that. */ - if (cmd_result & SAM_STAT_CHECK_CONDITION) { + if (scsi_status_is_check_condition(cmd_result)) { if (sshdr.sense_key == RECOVERED_ERROR && sshdr.asc == 0 && sshdr.ascq == 0x1d) cmd_result &= ~SAM_STAT_CHECK_CONDITION; @@ -496,9 +495,8 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg) rc = cmd_result; goto error; } - if (driver_byte(cmd_result) == DRIVER_SENSE) {/* sense data available */ + if (scsi_sense_valid(&sshdr)) {/* sense data available */ u8 *desc = sensebuf + 8; - cmd_result &= ~(0xFF<<24); /* DRIVER_SENSE is not an error */ /* If we set cc then ATA pass-through will cause a * check condition even if no error. Filter that. */ @@ -864,8 +862,6 @@ static void ata_gen_passthru_sense(struct ata_queued_cmd *qc) memset(sb, 0, SCSI_SENSE_BUFFERSIZE); - cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION; - /* * Use ata_to_sense_error() to map status register bits * onto sense key, asc & ascq. @@ -962,8 +958,6 @@ static void ata_gen_ata_sense(struct ata_queued_cmd *qc) memset(sb, 0, SCSI_SENSE_BUFFERSIZE); - cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION; - if (ata_dev_disabled(dev)) { /* Device disabled after error recovery */ /* LOGICAL UNIT NOT READY, HARD RESET REQUIRED */ @@ -4201,7 +4195,6 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd) case REQUEST_SENSE: ata_scsi_set_sense(dev, cmd, 0, 0, 0); - cmd->result = (DRIVER_SENSE << 24); break; /* if we reach this, then writeback caching is disabled, diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index 2ddbcaa667d1..d7594b794d3c 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -542,7 +542,7 @@ static void complete_cmd(struct Scsi_Host *instance, scsi_eh_restore_cmnd(cmd, &hostdata->ses); } else { scsi_eh_restore_cmnd(cmd, &hostdata->ses); - set_driver_byte(cmd, DRIVER_SENSE); + set_status_byte(cmd, SAM_STAT_CHECK_CONDITION); } hostdata->sensing = NULL; } diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 800052f10699..379ff1bcfdbe 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -5964,7 +5964,6 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n"); ASC_DBG_PRT_SENSE(2, scp->sense_buffer, SCSI_SENSE_BUFFERSIZE); - set_driver_byte(scp, DRIVER_SENSE); } break; @@ -6715,7 +6714,6 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n"); ASC_DBG_PRT_SENSE(2, scp->sense_buffer, SCSI_SENSE_BUFFERSIZE); - set_driver_byte(scp, DRIVER_SENSE); } break; diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 4f7102f8eeb0..92ea24a075b8 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -1928,7 +1928,7 @@ ahd_linux_handle_scsi_status(struct ahd_softc *ahd, memcpy(cmd->sense_buffer, ahd_get_sense_buf(ahd, scb) + sense_offset, sense_size); - cmd->result |= (DRIVER_SENSE << 24); + set_status_byte(cmd, SAM_STAT_CHECK_CONDITION); #ifdef AHD_DEBUG if (ahd_debug & AHD_SHOW_SENSE) { @@ -2018,6 +2018,7 @@ ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd) int new_status = DID_OK; int do_fallback = 0; int scsi_status; + struct scsi_sense_data *sense; /* * Map CAM error codes into Linux Error codes. We @@ -2041,18 +2042,12 @@ ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd) switch(scsi_status) { case SAM_STAT_COMMAND_TERMINATED: case SAM_STAT_CHECK_CONDITION: - if ((cmd->result >> 24) != DRIVER_SENSE) { + sense = (struct scsi_sense_data *) + cmd->sense_buffer; + if (sense->extra_len >= 5 && + (sense->add_sense_code == 0x47 + || sense->add_sense_code == 0x48)) do_fallback = 1; - } else { - struct scsi_sense_data *sense; - - sense = (struct scsi_sense_data *) - cmd->sense_buffer; - if (sense->extra_len >= 5 && - (sense->add_sense_code == 0x47 - || sense->add_sense_code == 0x48)) - do_fallback = 1; - } break; default: break; diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index d33f5a00bf0b..8b3d472aa3cc 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -1838,7 +1838,6 @@ ahc_linux_handle_scsi_status(struct ahc_softc *ahc, if (sense_size < SCSI_SENSE_BUFFERSIZE) memset(&cmd->sense_buffer[sense_size], 0, SCSI_SENSE_BUFFERSIZE - sense_size); - cmd->result |= (DRIVER_SENSE << 24); #ifdef AHC_DEBUG if (ahc_debug & AHC_SHOW_SENSE) { int i; diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 42e494a7106c..c01a5b2ff67a 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -1335,7 +1335,6 @@ static void arcmsr_report_sense_info(struct CommandControlBlock *ccb) memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length); sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS; sensebuffer->Valid = 1; - pcmd->result |= (DRIVER_SENSE << 24); } } diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c index d5990f6fb313..fc7197abfcdf 100644 --- a/drivers/scsi/ch.c +++ b/drivers/scsi/ch.c @@ -200,7 +200,7 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd, int cmd_len, MAX_RETRIES, NULL); if (result < 0) return result; - if (driver_byte(result) == DRIVER_SENSE) { + if (scsi_sense_valid(&sshdr)) { if (debug) scsi_print_sense_hdr(ch->device, ch->name, &sshdr); errno = ch_find_errno(&sshdr); diff --git a/drivers/scsi/cxlflash/superpipe.c b/drivers/scsi/cxlflash/superpipe.c index caa7c5fd233d..df0ebabbf387 100644 --- a/drivers/scsi/cxlflash/superpipe.c +++ b/drivers/scsi/cxlflash/superpipe.c @@ -369,8 +369,7 @@ retry: goto out; } - if (result > 0 && driver_byte(result) == DRIVER_SENSE) { - result &= ~(0xFF<<24); /* DRIVER_SENSE is not an error */ + if (result > 0 && scsi_sense_valid(&sshdr)) { if (result & SAM_STAT_CHECK_CONDITION) { switch (sshdr.sense_key) { case NO_SENSE: diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c index be87d5a7583d..a713fe605dda 100644 --- a/drivers/scsi/dc395x.c +++ b/drivers/scsi/dc395x.c @@ -3239,16 +3239,9 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb, } dprintkdbg(DBG_0, "srb_done: AUTO_REQSENSE2\n"); - if (srb->total_xfer_length - && srb->total_xfer_length >= cmd->underflow) - cmd->result = - MK_RES_LNX(DRIVER_SENSE, DID_OK, - srb->end_message, CHECK_CONDITION); - /*SET_RES_DID(cmd->result,DID_OK) */ - else - cmd->result = - MK_RES_LNX(DRIVER_SENSE, DID_OK, - srb->end_message, CHECK_CONDITION); + cmd->result = + MK_RES(0, DID_OK, + srb->end_message, SAM_STAT_CHECK_CONDITION); goto ckc_e; } diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index 342535ac0570..9a8c037a2f21 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -922,9 +922,7 @@ static void esp_cmd_is_done(struct esp *esp, struct esp_cmd_entry *ent, * saw originally. Also, report that we are providing * the sense data. */ - cmd->result = ((DRIVER_SENSE << 24) | - (DID_OK << 16) | - (SAM_STAT_CHECK_CONDITION << 0)); + cmd->result = SAM_STAT_CHECK_CONDITION; ent->flags &= ~ESP_CMD_FLAG_AUTOSENSE; if (esp_debug & ESP_DEBUG_AUTOSENSE) { diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index ae3f32f89381..1880471c632a 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -1583,9 +1583,7 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) memcpy(cmd->sense_buffer, pthru->reqsensearea, 14); - cmd->result = (DRIVER_SENSE << 24) | - (DID_OK << 16) | - (CHECK_CONDITION << 1); + cmd->result = SAM_STAT_CHECK_CONDITION; } else { if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) { @@ -1593,9 +1591,7 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status) memcpy(cmd->sense_buffer, epthru->reqsensearea, 14); - cmd->result = (DRIVER_SENSE << 24) | - (DID_OK << 16) | - (CHECK_CONDITION << 1); + cmd->result = SAM_STAT_CHECK_CONDITION; } else scsi_build_sense(cmd, 0, ABORTED_COMMAND, 0, 0); diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index 44154e13daa3..bb8b2fba4b3d 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -2299,8 +2299,7 @@ megaraid_mbox_dpc(unsigned long devp) memcpy(scp->sense_buffer, pthru->reqsensearea, 14); - scp->result = DRIVER_SENSE << 24 | - DID_OK << 16 | CHECK_CONDITION << 1; + scp->result = SAM_STAT_CHECK_CONDITION; } else { if (mbox->cmd == MBOXCMD_EXTPTHRU) { @@ -2308,9 +2307,7 @@ megaraid_mbox_dpc(unsigned long devp) memcpy(scp->sense_buffer, epthru->reqsensearea, 14); - scp->result = DRIVER_SENSE << 24 | - DID_OK << 16 | - CHECK_CONDITION << 1; + scp->result = SAM_STAT_CHECK_CONDITION; } else scsi_build_sense(scp, 0, ABORTED_COMMAND, 0, 0); diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 8ed347eebf07..181407888e58 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -3617,8 +3617,6 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, SCSI_SENSE_BUFFERSIZE); memcpy(cmd->scmd->sense_buffer, cmd->sense, hdr->sense_len); - - cmd->scmd->result |= DRIVER_SENSE << 24; } break; diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 2221175ae051..1a4bd75229cf 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -2051,7 +2051,6 @@ map_cmd_status(struct fusion_context *fusion, SCSI_SENSE_BUFFERSIZE); memcpy(scmd->sense_buffer, sense, SCSI_SENSE_BUFFERSIZE); - scmd->result |= DRIVER_SENSE << 24; } /* diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c index 94f706eeb561..f61250545025 100644 --- a/drivers/scsi/mvumi.c +++ b/drivers/scsi/mvumi.c @@ -1317,7 +1317,6 @@ static void mvumi_complete_cmd(struct mvumi_hba *mhba, struct mvumi_cmd *cmd, if (ob_frame->rsp_flag & CL_RSP_FLAG_SENSEDATA) { memcpy(cmd->scmd->sense_buffer, ob_frame->payload, sizeof(struct mvumi_sense_data)); - scmd->result |= (DRIVER_SENSE << 24); } break; default: diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 1ce46e6e6483..d26025cf5de3 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -185,13 +185,6 @@ void scsi_finish_command(struct scsi_cmnd *cmd) if (atomic_read(&sdev->device_blocked)) atomic_set(&sdev->device_blocked, 0); - /* - * If we have valid sense information, then some kind of recovery - * must have taken place. Make a note of this. - */ - if (SCSI_SENSE_VALID(cmd)) - cmd->result |= (DRIVER_SENSE << 24); - SCSI_LOG_MLCOMPLETE(4, sdev_printk(KERN_INFO, sdev, "Notifying upper driver of completion " "(result %x)\n", cmd->result)); diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index a49fbd96a510..5b3a20a140f9 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -851,10 +851,10 @@ static struct device_driver sdebug_driverfs_driver = { }; static const int check_condition_result = - (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION; + SAM_STAT_CHECK_CONDITION; static const int illegal_condition_result = - (DRIVER_SENSE << 24) | (DID_ABORT << 16) | SAM_STAT_CHECK_CONDITION; + (DID_ABORT << 16) | SAM_STAT_CHECK_CONDITION; static const int device_qfull_result = (DID_OK << 16) | SAM_STAT_TASK_SET_FULL; diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c index d34e1b41dc71..0d13610cd6bf 100644 --- a/drivers/scsi/scsi_ioctl.c +++ b/drivers/scsi/scsi_ioctl.c @@ -103,8 +103,7 @@ static int ioctl_internal_command(struct scsi_device *sdev, char *cmd, if (result < 0) goto out; - if (driver_byte(result) == DRIVER_SENSE && - scsi_sense_valid(&sshdr)) { + if (scsi_sense_valid(&sshdr)) { switch (sshdr.sense_key) { case ILLEGAL_REQUEST: if (cmd[0] == ALLOW_MEDIUM_REMOVAL) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index d6b0cb2ab292..75d633ffdac0 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -593,8 +593,6 @@ static blk_status_t scsi_result_to_blk_status(struct scsi_cmnd *cmd, int result) case DID_OK: /* * Also check the other bytes than the status byte in result - * to handle the case when a SCSI LLD sets result to - * DRIVER_SENSE << 24 without setting SAM_STAT_CHECK_CONDITION. */ if (scsi_status_is_good(result) && (result & ~0xff) == 0) return BLK_STS_OK; @@ -790,7 +788,7 @@ static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result) */ if (!level && __ratelimit(&_rs)) { scsi_print_result(cmd, NULL, FAILED); - if (driver_byte(result) == DRIVER_SENSE) + if (sense_valid) scsi_print_sense(cmd); scsi_print_command(cmd); } @@ -2152,8 +2150,7 @@ scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage, * ILLEGAL REQUEST if the code page isn't supported */ if (!scsi_status_is_good(result)) { - if (driver_byte(result) == DRIVER_SENSE && - scsi_sense_valid(sshdr)) { + if (scsi_sense_valid(sshdr)) { if ((sshdr->sense_key == ILLEGAL_REQUEST) && (sshdr->asc == 0x20) && (sshdr->ascq == 0)) { /* @@ -3236,7 +3233,6 @@ EXPORT_SYMBOL(scsi_vpd_tpg_id); void scsi_build_sense(struct scsi_cmnd *scmd, int desc, u8 key, u8 asc, u8 ascq) { scsi_build_sense_buffer(desc, scmd->sense_buffer, key, asc, ascq); - scmd->result = (DRIVER_SENSE << 24) | (DID_OK << 16) | - SAM_STAT_CHECK_CONDITION; + scmd->result = SAM_STAT_CHECK_CONDITION; } EXPORT_SYMBOL_GPL(scsi_build_sense); diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index a0edcff7db1f..5ce45ef9808f 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -623,7 +623,7 @@ static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result, * INQUIRY should not yield UNIT_ATTENTION * but many buggy devices do so anyway. */ - if (driver_byte(result) == DRIVER_SENSE && + if (scsi_status_is_check_condition(result) && scsi_sense_valid(&sshdr)) { if ((sshdr.sense_key == UNIT_ATTENTION) && ((sshdr.asc == 0x28) || diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c index a9bb7ae2fafd..5af7a10e9514 100644 --- a/drivers/scsi/scsi_transport_spi.c +++ b/drivers/scsi/scsi_transport_spi.c @@ -127,7 +127,7 @@ static int spi_execute(struct scsi_device *sdev, const void *cmd, REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER, RQF_PM, NULL); - if (result < 0 || driver_byte(result) != DRIVER_SENSE || + if (result < 0 || !scsi_sense_valid(sshdr) || sshdr->sense_key != UNIT_ATTENTION) break; } diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 5733fbee2bae..66cb161667af 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1722,16 +1722,17 @@ static int sd_sync_cache(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr) if (res < 0) return res; - if (driver_byte(res) == DRIVER_SENSE) + if (scsi_status_is_check_condition(res) && + scsi_sense_valid(sshdr)) { sd_print_sense_hdr(sdkp, sshdr); - /* we need to evaluate the error return */ - if (scsi_sense_valid(sshdr) && - (sshdr->asc == 0x3a || /* medium not present */ - sshdr->asc == 0x20 || /* invalid command */ - (sshdr->asc == 0x74 && sshdr->ascq == 0x71))) /* drive is password locked */ + /* we need to evaluate the error return */ + if (sshdr->asc == 0x3a || /* medium not present */ + sshdr->asc == 0x20 || /* invalid command */ + (sshdr->asc == 0x74 && sshdr->ascq == 0x71)) /* drive is password locked */ /* this is no error here */ return 0; + } switch (host_byte(res)) { /* ignore errors due to racing a disconnection */ @@ -1828,7 +1829,7 @@ static int sd_pr_command(struct block_device *bdev, u8 sa, result = scsi_execute_req(sdev, cmd, DMA_TO_DEVICE, &data, sizeof(data), &sshdr, SD_TIMEOUT, sdkp->max_retries, NULL); - if (result > 0 && driver_byte(result) == DRIVER_SENSE && + if (scsi_status_is_check_condition(result) && scsi_sense_valid(&sshdr)) { sdev_printk(KERN_INFO, sdev, "PR command failed: %d\n", result); scsi_print_sense_hdr(sdev, NULL, &sshdr); @@ -2072,7 +2073,7 @@ static int sd_done(struct scsi_cmnd *SCpnt) } sdkp->medium_access_timed_out = 0; - if (driver_byte(result) != DRIVER_SENSE && + if (!scsi_status_is_check_condition(result) && (!sense_valid || sense_deferred)) goto out; @@ -2175,12 +2176,12 @@ sd_spinup_disk(struct scsi_disk *sdkp) if (the_result) sense_valid = scsi_sense_valid(&sshdr); retries++; - } while (retries < 3 && + } while (retries < 3 && (!scsi_status_is_good(the_result) || - ((driver_byte(the_result) == DRIVER_SENSE) && + (scsi_status_is_check_condition(the_result) && sense_valid && sshdr.sense_key == UNIT_ATTENTION))); - if (the_result < 0 || driver_byte(the_result) != DRIVER_SENSE) { + if (!scsi_status_is_check_condition(the_result)) { /* no sense, TUR either succeeded or failed * with a status error */ if(!spintime && !scsi_status_is_good(the_result)) { @@ -2308,7 +2309,7 @@ static void read_capacity_error(struct scsi_disk *sdkp, struct scsi_device *sdp, struct scsi_sense_hdr *sshdr, int sense_valid, int the_result) { - if (driver_byte(the_result) == DRIVER_SENSE) + if (sense_valid) sd_print_sense_hdr(sdkp, sshdr); else sd_printk(KERN_NOTICE, sdkp, "Sense not available.\n"); @@ -3594,12 +3595,12 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start) SD_TIMEOUT, sdkp->max_retries, 0, RQF_PM, NULL); if (res) { sd_print_result(sdkp, "Start/Stop Unit failed", res); - if (res > 0 && driver_byte(res) == DRIVER_SENSE) + if (res > 0 && scsi_sense_valid(&sshdr)) { sd_print_sense_hdr(sdkp, &sshdr); - if (scsi_sense_valid(&sshdr) && /* 0x3a is medium not present */ - sshdr.asc == 0x3a) - res = 0; + if (sshdr.asc == 0x3a) + res = 0; + } } /* SCSI error codes must not go to the generic layer */ diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c index d4a79fdcfffe..186b5ff52c3a 100644 --- a/drivers/scsi/sd_zbc.c +++ b/drivers/scsi/sd_zbc.c @@ -116,8 +116,7 @@ static int sd_zbc_do_report_zones(struct scsi_disk *sdkp, unsigned char *buf, sd_printk(KERN_ERR, sdkp, "REPORT ZONES start lba %llu failed\n", lba); sd_print_result(sdkp, "REPORT ZONES", result); - if (result > 0 && driver_byte(result) == DRIVER_SENSE && - scsi_sense_valid(&sshdr)) + if (result > 0 && scsi_sense_valid(&sshdr)) sd_print_sense_hdr(sdkp, &sshdr); return -EIO; } diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index def7ec3bbaf9..faf7716c8851 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -498,9 +498,11 @@ sg_read(struct file *filp, char __user *buf, size_t count, loff_t * ppos) old_hdr->host_status = hp->host_status; old_hdr->driver_status = hp->driver_status; if ((CHECK_CONDITION & hp->masked_status) || - (DRIVER_SENSE & hp->driver_status)) + (srp->sense_b[0] & 0x70) == 0x70) { + old_hdr->driver_status = DRIVER_SENSE; memcpy(old_hdr->sense_buffer, srp->sense_b, sizeof (old_hdr->sense_buffer)); + } switch (hp->host_status) { /* This setup of 'result' is for backward compatibility and is best ignored by the user who should use target, host + driver status */ @@ -574,7 +576,7 @@ sg_new_read(Sg_fd * sfp, char __user *buf, size_t count, Sg_request * srp) hp->sb_len_wr = 0; if ((hp->mx_sb_len > 0) && hp->sbp) { if ((CHECK_CONDITION & hp->masked_status) || - (DRIVER_SENSE & hp->driver_status)) { + (srp->sense_b[0] & 0x70) == 0x70) { int sb_len = SCSI_SENSE_BUFFERSIZE; sb_len = (hp->mx_sb_len > sb_len) ? sb_len : hp->mx_sb_len; len = 8 + (int) srp->sense_b[7]; /* Additional sense length field */ @@ -583,6 +585,7 @@ sg_new_read(Sg_fd * sfp, char __user *buf, size_t count, Sg_request * srp) err = -EFAULT; goto err_out; } + hp->driver_status = DRIVER_SENSE; hp->sb_len_wr = len; } } diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index 3af2a2d3bfa2..491b435273a6 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -737,7 +737,7 @@ static void stex_scsi_done(struct st_ccb *ccb) result |= DID_OK << 16; break; case SAM_STAT_CHECK_CONDITION: - result |= DRIVER_SENSE << 24; + result |= DID_OK << 16; break; case SAM_STAT_BUSY: result |= DID_BUS_BUSY << 16; @@ -748,7 +748,7 @@ static void stex_scsi_done(struct st_ccb *ccb) } } else if (ccb->srb_status & SRB_SEE_SENSE) - result = DRIVER_SENSE << 24 | SAM_STAT_CHECK_CONDITION; + result = SAM_STAT_CHECK_CONDITION; else switch (ccb->srb_status) { case SRB_STATUS_SELECTION_TIMEOUT: result = DID_NO_CONNECT << 16; diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index d9a045f9858c..16b65fc4405c 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -170,9 +170,8 @@ static int sym_xerr_cam_status(int cam_status, int x_status) void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid) { struct scsi_cmnd *cmd = cp->cmd; - u_int cam_status, scsi_status, drv_status; + u_int cam_status, scsi_status; - drv_status = 0; cam_status = DID_OK; scsi_status = cp->ssss_status; @@ -186,7 +185,6 @@ void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid) cp->xerr_status == 0) { cam_status = sym_xerr_cam_status(DID_OK, cp->sv_xerr_status); - drv_status = DRIVER_SENSE; /* * Bounce back the sense data to user. */ @@ -235,7 +233,7 @@ void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid) cam_status = sym_xerr_cam_status(DID_ERROR, cp->xerr_status); } scsi_set_resid(cmd, resid); - cmd->result = (drv_status << 24) | (cam_status << 16) | scsi_status; + cmd->result = (cam_status << 16) | scsi_status; } static int sym_scatter(struct sym_hcb *np, struct sym_ccb *cp, struct scsi_cmnd *cmd) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 9523e268c0e8..02267b090729 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -8604,7 +8604,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, sdev_printk(KERN_WARNING, sdp, "START_STOP failed for power mode: %d, result %x\n", pwr_mode, ret); - if (ret > 0 && driver_byte(ret) == DRIVER_SENSE) + if (ret > 0 && scsi_sense_valid(&sshdr)) scsi_print_sense_hdr(sdp, NULL, &sshdr); } diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index 1678b6f14af9..fd69a03d6137 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -161,8 +161,7 @@ static void virtscsi_complete_cmd(struct virtio_scsi *vscsi, void *buf) min_t(u32, virtio32_to_cpu(vscsi->vdev, resp->sense_len), VIRTIO_SCSI_SENSE_SIZE)); - if (resp->sense_len) - set_driver_byte(sc, DRIVER_SENSE); + set_status_byte(sc, SAM_STAT_CHECK_CONDITION); } sc->scsi_done(sc); diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c index 8a79605d9652..f0707eaad9f7 100644 --- a/drivers/scsi/vmw_pvscsi.c +++ b/drivers/scsi/vmw_pvscsi.c @@ -576,9 +576,6 @@ static void pvscsi_complete_request(struct pvscsi_adapter *adapter, cmd->result = (DID_RESET << 16); } else { cmd->result = (DID_OK << 16) | sdstat; - if (sdstat == SAM_STAT_CHECK_CONDITION && - cmd->sense_buffer) - cmd->result |= (DRIVER_SENSE << 24); } } else switch (btstat) { diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 2687fd7d45db..6d0b0e67e79e 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -566,7 +566,6 @@ static int tcm_loop_queue_data_or_status(const char *func, memcpy(sc->sense_buffer, se_cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE); sc->result = SAM_STAT_CHECK_CONDITION; - set_driver_byte(sc, DRIVER_SENSE); } else sc->result = scsi_status; diff --git a/drivers/usb/storage/cypress_atacb.c b/drivers/usb/storage/cypress_atacb.c index a6f3267bbef6..2f7093ba5a2f 100644 --- a/drivers/usb/storage/cypress_atacb.c +++ b/drivers/usb/storage/cypress_atacb.c @@ -221,11 +221,11 @@ static void cypress_atacb_passthrough(struct scsi_cmnd *srb, struct us_data *us) desc[12] = regs[6]; /* device */ desc[13] = regs[7]; /* command */ - srb->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION; + srb->result = SAM_STAT_CHECK_CONDITION; } goto end; invalid_fld: - srb->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION; + srb->result = SAM_STAT_CHECK_CONDITION; memcpy(srb->sense_buffer, usb_stor_sense_invalidCDB, diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c index 55a4763da05e..3ec038cd4332 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -1401,8 +1401,7 @@ static int scsiback_queue_status(struct se_cmd *se_cmd) if (se_cmd->sense_buffer && ((se_cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) || (se_cmd->se_cmd_flags & SCF_EMULATED_TASK_SENSE))) - pending_req->result = (DRIVER_SENSE << 24) | - SAM_STAT_CHECK_CONDITION; + pending_req->result = SAM_STAT_CHECK_CONDITION; else pending_req->result = se_cmd->scsi_status; diff --git a/include/scsi/sg.h b/include/scsi/sg.h index e1a42c2409cc..d5c17775c3b4 100644 --- a/include/scsi/sg.h +++ b/include/scsi/sg.h @@ -131,6 +131,17 @@ struct compat_sg_io_hdr { #define SG_INFO_DIRECT_IO 0x2 /* direct IO requested and performed */ #define SG_INFO_MIXED_IO 0x4 /* part direct, part indirect IO */ +/* + * Obsolete DRIVER_SENSE driver byte + * + * Originally the SCSI midlayer would set the DRIVER_SENSE driver byte when + * a sense code was generated and a sense buffer was allocated. + * However, as nowadays every scsi command has a sense code allocated this + * distinction became moot as one could check the sense buffer directly. + * Consequently this byte is not set anymore from the midlayer, but SG will + * keep setting this byte to be compatible with previous releases. + */ +#define DRIVER_SENSE 0x08 typedef struct sg_scsi_id { /* used by SG_GET_SCSI_ID ioctl() */ int host_no; /* as in "scsi" where 'n' is one of 0, 1, 2 etc */