diff mbox

[09/10] qla2xxx: Comment out unreachable code

Message ID 5570D7D0.80500@sandisk.com (mailing list archive)
State New, archived
Headers show

Commit Message

Bart Van Assche June 4, 2015, 10:57 p.m. UTC
Comment out the code that is never reached in qla83xx_idc_unlock()
and also in qlt_set_data_offset() to avoid that static source code
analysis tools report warnings for this code.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Himanshu Madhani <himanshu.madhani@qlogic.com>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
---
 drivers/scsi/qla2xxx/qla_os.c     |  7 ++++++-
 drivers/scsi/qla2xxx/qla_target.c | 16 +++++++++-------
 2 files changed, 15 insertions(+), 8 deletions(-)

Comments

Himanshu Madhani June 11, 2015, 4:43 a.m. UTC | #1
On 6/4/15, 3:57 PM, "Bart Van Assche" <bart.vanassche@sandisk.com> wrote:

>Comment out the code that is never reached in qla83xx_idc_unlock()
>and also in qlt_set_data_offset() to avoid that static source code
>analysis tools report warnings for this code.
>
>Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
>Cc: Himanshu Madhani <himanshu.madhani@qlogic.com>
>Cc: Quinn Tran <quinn.tran@qlogic.com>
>Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
>---
> drivers/scsi/qla2xxx/qla_os.c     |  7 ++++++-
> drivers/scsi/qla2xxx/qla_target.c | 16 +++++++++-------
> 2 files changed, 15 insertions(+), 8 deletions(-)
>
>diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
>index 0ababd5..5a5166b 100644
>--- a/drivers/scsi/qla2xxx/qla_os.c
>+++ b/drivers/scsi/qla2xxx/qla_os.c
>@@ -4417,7 +4417,10 @@ retry_lock2:
> void
> qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
> {
>-	uint16_t options = (requester_id << 15) | BIT_7, retry;
>+#if 0
>+	uint16_t options = (requester_id << 15) | BIT_7;
>+#endif
>+	uint16_t retry;
> 	uint32_t data;
> 	struct qla_hw_data *ha = base_vha->hw;
> 
>@@ -4453,6 +4456,7 @@ retry_unlock:
> 
> 	return;
> 
>+#if 0
> 	/* XXX: IDC-unlock implementation using access-control mbx */
> 	retry = 0;
> retry_unlock2:
>@@ -4468,6 +4472,7 @@ retry_unlock2:
> 	}
> 
> 	return;
>+#endif
> }
> 
> int
>diff --git a/drivers/scsi/qla2xxx/qla_target.c
>b/drivers/scsi/qla2xxx/qla_target.c
>index 59a0897..22a91a3 100644
>--- a/drivers/scsi/qla2xxx/qla_target.c
>+++ b/drivers/scsi/qla2xxx/qla_target.c
>@@ -3699,6 +3699,14 @@ static int qlt_24xx_handle_els(struct
>scsi_qla_host *vha,
> 
> static int qlt_set_data_offset(struct qla_tgt_cmd *cmd, uint32_t offset)
> {
>+#if 1
>+	/*
>+	 * FIXME: Reject non zero SRR relative offset until we can test
>+	 * this code properly.
>+	 */
>+	pr_debug("Rejecting non zero SRR rel_offs: %u\n", offset);
>+	return -1;
>+#else
> 	struct scatterlist *sg, *sgp, *sg_srr, *sg_srr_start = NULL;
> 	size_t first_offset = 0, rem_offset = offset, tmp = 0;
> 	int i, sg_srr_cnt, bufflen = 0;
>@@ -3708,13 +3716,6 @@ static int qlt_set_data_offset(struct qla_tgt_cmd
>*cmd, uint32_t offset)
> 	    "cmd->sg_cnt: %u, direction: %d\n",
> 	    cmd, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction);
> 
>-	/*
>-	 * FIXME: Reject non zero SRR relative offset until we can test
>-	 * this code properly.
>-	 */
>-	pr_debug("Rejecting non zero SRR rel_offs: %u\n", offset);
>-	return -1;
>-
> 	if (!cmd->sg || !cmd->sg_cnt) {
> 		ql_dbg(ql_dbg_tgt, cmd->vha, 0xe055,
> 		    "Missing cmd->sg or zero cmd->sg_cnt in"
>@@ -3797,6 +3798,7 @@ static int qlt_set_data_offset(struct qla_tgt_cmd
>*cmd, uint32_t offset)
> 		BUG();
> 
> 	return 0;
>+#endif
> }
> 
> static inline int qlt_srr_adjust_data(struct qla_tgt_cmd *cmd,
>-- 
>2.1.4
>

Looks good. 

Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com>


>
diff mbox

Patch

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 0ababd5..5a5166b 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -4417,7 +4417,10 @@  retry_lock2:
 void
 qla83xx_idc_unlock(scsi_qla_host_t *base_vha, uint16_t requester_id)
 {
-	uint16_t options = (requester_id << 15) | BIT_7, retry;
+#if 0
+	uint16_t options = (requester_id << 15) | BIT_7;
+#endif
+	uint16_t retry;
 	uint32_t data;
 	struct qla_hw_data *ha = base_vha->hw;
 
@@ -4453,6 +4456,7 @@  retry_unlock:
 
 	return;
 
+#if 0
 	/* XXX: IDC-unlock implementation using access-control mbx */
 	retry = 0;
 retry_unlock2:
@@ -4468,6 +4472,7 @@  retry_unlock2:
 	}
 
 	return;
+#endif
 }
 
 int
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 59a0897..22a91a3 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -3699,6 +3699,14 @@  static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
 
 static int qlt_set_data_offset(struct qla_tgt_cmd *cmd, uint32_t offset)
 {
+#if 1
+	/*
+	 * FIXME: Reject non zero SRR relative offset until we can test
+	 * this code properly.
+	 */
+	pr_debug("Rejecting non zero SRR rel_offs: %u\n", offset);
+	return -1;
+#else
 	struct scatterlist *sg, *sgp, *sg_srr, *sg_srr_start = NULL;
 	size_t first_offset = 0, rem_offset = offset, tmp = 0;
 	int i, sg_srr_cnt, bufflen = 0;
@@ -3708,13 +3716,6 @@  static int qlt_set_data_offset(struct qla_tgt_cmd *cmd, uint32_t offset)
 	    "cmd->sg_cnt: %u, direction: %d\n",
 	    cmd, cmd->sg, cmd->sg_cnt, cmd->dma_data_direction);
 
-	/*
-	 * FIXME: Reject non zero SRR relative offset until we can test
-	 * this code properly.
-	 */
-	pr_debug("Rejecting non zero SRR rel_offs: %u\n", offset);
-	return -1;
-
 	if (!cmd->sg || !cmd->sg_cnt) {
 		ql_dbg(ql_dbg_tgt, cmd->vha, 0xe055,
 		    "Missing cmd->sg or zero cmd->sg_cnt in"
@@ -3797,6 +3798,7 @@  static int qlt_set_data_offset(struct qla_tgt_cmd *cmd, uint32_t offset)
 		BUG();
 
 	return 0;
+#endif
 }
 
 static inline int qlt_srr_adjust_data(struct qla_tgt_cmd *cmd,