Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

Pull SCSI target fixes from Nicholas Bellinger:
 "Mostly minor fixes this time to v3.14-rc1 related changes.  Also
  included is one fix for a free after use regression in persistent
  reservations UNREGISTER logic that is CC'ed to >= v3.11.y stable"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  Target/sbc: Fix protection copy routine
  IB/srpt: replace strict_strtoul() with kstrtoul()
  target: Simplify command completion by removing CMD_T_FAILED flag
  iser-target: Fix leak on failure in isert_conn_create_fastreg_pool
  iscsi-target: Fix SNACK Type 1 + BegRun=0 handling
  target: Fix missing length check in spc_emulate_evpd_83()
  qla2xxx: Remove last vestiges of qla_tgt_cmd.cmd_list
  target: Fix 32-bit + CONFIG_LBDAF=n link error w/ sector_div
  target: Fix free-after-use regression in PR unregister

10 files changed, 30 insertions, 22 deletions

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 2b161be3c1a..d18d08a076e 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -453,6 +453,7 @@ isert_conn_create_fastreg_pool(struct isert_conn *isert_conn)
 		if (ret) {
 			pr_err("Failed to create fastreg descriptor err=%d\n",
 			       ret);
+			kfree(fr_desc);
 			goto err;
 		}
 
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 520a7e5a490..0e537d8d0e4 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -3666,9 +3666,9 @@ static ssize_t srpt_tpg_attrib_store_srp_max_rdma_size(
 	unsigned long val;
 	int ret;
 
-	ret = strict_strtoul(page, 0, &val);
+	ret = kstrtoul(page, 0, &val);
 	if (ret < 0) {
-		pr_err("strict_strtoul() failed with ret: %d\n", ret);
+		pr_err("kstrtoul() failed with ret: %d\n", ret);
 		return -EINVAL;
 	}
 	if (val > MAX_SRPT_RDMA_SIZE) {
@@ -3706,9 +3706,9 @@ static ssize_t srpt_tpg_attrib_store_srp_max_rsp_size(
 	unsigned long val;
 	int ret;
 
-	ret = strict_strtoul(page, 0, &val);
+	ret = kstrtoul(page, 0, &val);
 	if (ret < 0) {
-		pr_err("strict_strtoul() failed with ret: %d\n", ret);
+		pr_err("kstrtoul() failed with ret: %d\n", ret);
 		return -EINVAL;
 	}
 	if (val > MAX_SRPT_RSP_SIZE) {
@@ -3746,9 +3746,9 @@ static ssize_t srpt_tpg_attrib_store_srp_sq_size(
 	unsigned long val;
 	int ret;
 
-	ret = strict_strtoul(page, 0, &val);
+	ret = kstrtoul(page, 0, &val);
 	if (ret < 0) {
-		pr_err("strict_strtoul() failed with ret: %d\n", ret);
+		pr_err("kstrtoul() failed with ret: %d\n", ret);
 		return -EINVAL;
 	}
 	if (val > MAX_SRPT_SRQ_SIZE) {
@@ -3793,7 +3793,7 @@ static ssize_t srpt_tpg_store_enable(
 	unsigned long tmp;
         int ret;
 
-	ret = strict_strtoul(page, 0, &tmp);
+	ret = kstrtoul(page, 0, &tmp);
 	if (ret < 0) {
 		printk(KERN_ERR "Unable to extract srpt_tpg_store_enable\n");
 		return -EINVAL;
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 9e80d61e5a3..2eb97d7e8d1 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -2595,8 +2595,6 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
 		return -ENOMEM;
 	}
 
-	INIT_LIST_HEAD(&cmd->cmd_list);
-
 	memcpy(&cmd->atio, atio, sizeof(*atio));
 	cmd->state = QLA_TGT_STATE_NEW;
 	cmd->tgt = vha->vha_tgt.qla_tgt;
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index 1d10eecad49..66e755cdde5 100644
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -855,7 +855,6 @@ struct qla_tgt_cmd {
 	uint16_t loop_id;	/* to save extra sess dereferences */
 	struct qla_tgt *tgt;	/* to save extra sess dereferences */
 	struct scsi_qla_host *vha;
-	struct list_head cmd_list;
 
 	struct atio_from_isp atio;
 };
diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c
index e048d6439f4..cda4d80cfae 100644
--- a/drivers/target/iscsi/iscsi_target_erl1.c
+++ b/drivers/target/iscsi/iscsi_target_erl1.c
@@ -507,7 +507,9 @@ int iscsit_handle_status_snack(
 	u32 last_statsn;
 	int found_cmd;
 
-	if (conn->exp_statsn > begrun) {
+	if (!begrun) {
+		begrun = conn->exp_statsn;
+	} else if (conn->exp_statsn > begrun) {
 		pr_err("Got Status SNACK Begrun: 0x%08x, RunLength:"
 			" 0x%08x but already got ExpStatSN: 0x%08x on CID:"
 			" %hu.\n", begrun, runlength, conn->exp_statsn,
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 12da9b38616..c3d9df6aaf5 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -500,7 +500,7 @@ static inline int core_alua_state_lba_dependent(
 
 			if (segment_mult) {
 				u64 tmp = lba;
-				start_lba = sector_div(tmp, segment_size * segment_mult);
+				start_lba = do_div(tmp, segment_size * segment_mult);
 
 				last_lba = first_lba + segment_size - 1;
 				if (start_lba >= first_lba &&
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 2f5d77932c8..3013287a2aa 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -2009,7 +2009,7 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key,
 	struct t10_reservation *pr_tmpl = &dev->t10_pr;
 	unsigned char isid_buf[PR_REG_ISID_LEN], *isid_ptr = NULL;
 	sense_reason_t ret = TCM_NO_SENSE;
-	int pr_holder = 0;
+	int pr_holder = 0, type;
 
 	if (!se_sess || !se_lun) {
 		pr_err("SPC-3 PR: se_sess || struct se_lun is NULL!\n");
@@ -2131,6 +2131,7 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key,
 			ret = TCM_RESERVATION_CONFLICT;
 			goto out;
 		}
+		type = pr_reg->pr_res_type;
 
 		spin_lock(&pr_tmpl->registration_lock);
 		/*
@@ -2161,6 +2162,7 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key,
 		 * Release the calling I_T Nexus registration now..
 		 */
 		__core_scsi3_free_registration(cmd->se_dev, pr_reg, NULL, 1);
+		pr_reg = NULL;
 
 		/*
 		 * From spc4r17, section 5.7.11.3 Unregistering
@@ -2174,8 +2176,8 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key,
 		 * RESERVATIONS RELEASED.
 		 */
 		if (pr_holder &&
-		    (pr_reg->pr_res_type == PR_TYPE_WRITE_EXCLUSIVE_REGONLY ||
-		     pr_reg->pr_res_type == PR_TYPE_EXCLUSIVE_ACCESS_REGONLY)) {
+		    (type == PR_TYPE_WRITE_EXCLUSIVE_REGONLY ||
+		     type == PR_TYPE_EXCLUSIVE_ACCESS_REGONLY)) {
 			list_for_each_entry(pr_reg_p,
 					&pr_tmpl->registration_list,
 					pr_reg_list) {
@@ -2194,7 +2196,8 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key,
 	ret = core_scsi3_update_and_write_aptpl(dev, aptpl);
 
 out:
-	core_scsi3_put_pr_reg(pr_reg);
+	if (pr_reg)
+		core_scsi3_put_pr_reg(pr_reg);
 	return ret;
 }
 
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index fa3cae393e1..a4489444ffb 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -1074,12 +1074,19 @@ sbc_dif_copy_prot(struct se_cmd *cmd, unsigned int sectors, bool read,
 	struct scatterlist *psg;
 	void *paddr, *addr;
 	unsigned int i, len, left;
+	unsigned int offset = 0;
 
 	left = sectors * dev->prot_length;
 
 	for_each_sg(cmd->t_prot_sg, psg, cmd->t_prot_nents, i) {
 
 		len = min(psg->length, left);
+		if (offset >= sg->length) {
+			sg = sg_next(sg);
+			offset = 0;
+			sg_off = sg->offset;
+		}
+
 		paddr = kmap_atomic(sg_page(psg)) + psg->offset;
 		addr = kmap_atomic(sg_page(sg)) + sg_off;
 
@@ -1089,6 +1096,7 @@ sbc_dif_copy_prot(struct se_cmd *cmd, unsigned int sectors, bool read,
 			memcpy(addr, paddr, len);
 
 		left -= len;
+		offset += len;
 		kunmap_atomic(paddr);
 		kunmap_atomic(addr);
 	}
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 43c5ca9878b..3bebc71ea03 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -440,8 +440,8 @@ check_scsi_name:
 		padding = ((-scsi_target_len) & 3);
 		if (padding)
 			scsi_target_len += padding;
-		if (scsi_name_len > 256)
-			scsi_name_len = 256;
+		if (scsi_target_len > 256)
+			scsi_target_len = 256;
 
 		buf[off-1] = scsi_target_len;
 		off += scsi_target_len;
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index c50fd9f11aa..24b4f65d877 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -669,9 +669,6 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
 		return;
 	}
 
-	if (!success)
-		cmd->transport_state |= CMD_T_FAILED;
-
 	/*
 	 * Check for case where an explicit ABORT_TASK has been received
 	 * and transport_wait_for_tasks() will be waiting for completion..
@@ -681,7 +678,7 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
 		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 		complete(&cmd->t_transport_stop_comp);
 		return;
-	} else if (cmd->transport_state & CMD_T_FAILED) {
+	} else if (!success) {
 		INIT_WORK(&cmd->work, target_complete_failure_work);
 	} else {
 		INIT_WORK(&cmd->work, target_complete_ok_work);