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authorMike Christie <mchristi@redhat.com>2017-05-31 23:52:39 +0300
committerNicholas Bellinger <nab@linux-iscsi.org>2017-07-07 09:11:45 +0300
commitc6d66aba98a39cfed206c5c61f0a604ba09b26ce (patch)
treed45f9069b34a52f67f9ea58c4f50e32257944000 /drivers/target
parent9fe36984501035f2878aa10d83e79bfc07b7ad7e (diff)
downloadlinux-c6d66aba98a39cfed206c5c61f0a604ba09b26ce.tar.xz
target: add helper to copy sense to se_cmd buffer
This adds a helper to copy sense from backend module buffer to the se_cmd's sense buffer. Signed-off-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/target_core_transport.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index a8f943e325eb..341025a3cbb7 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -704,6 +704,24 @@ static unsigned char *transport_get_sense_buffer(struct se_cmd *cmd)
return cmd->sense_buffer;
}
+void transport_copy_sense_to_cmd(struct se_cmd *cmd, unsigned char *sense)
+{
+ unsigned char *cmd_sense_buf;
+ unsigned long flags;
+
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+ cmd_sense_buf = transport_get_sense_buffer(cmd);
+ if (!cmd_sense_buf) {
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+ return;
+ }
+
+ cmd->se_cmd_flags |= SCF_TRANSPORT_TASK_SENSE;
+ memcpy(cmd_sense_buf, sense, cmd->scsi_sense_length);
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+}
+EXPORT_SYMBOL(transport_copy_sense_to_cmd);
+
void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
{
struct se_device *dev = cmd->se_dev;