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path: root/drivers/target/target_core_transport.c
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Diffstat (limited to 'drivers/target/target_core_transport.c')
-rw-r--r--drivers/target/target_core_transport.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 4de3186..3425098 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1181,15 +1181,20 @@ int target_cmd_size_check(struct se_cmd *cmd, unsigned int size)
/* Returns CHECK_CONDITION + INVALID_CDB_FIELD */
goto out_invalid_cdb_field;
}
-
+ /*
+ * For the overflow case keep the existing fabric provided
+ * ->data_length. Otherwise for the underflow case, reset
+ * ->data_length to the smaller SCSI expected data transfer
+ * length.
+ */
if (size > cmd->data_length) {
cmd->se_cmd_flags |= SCF_OVERFLOW_BIT;
cmd->residual_count = (size - cmd->data_length);
} else {
cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
cmd->residual_count = (cmd->data_length - size);
+ cmd->data_length = size;
}
- cmd->data_length = size;
}
return 0;