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* [PATCH] qla2xxx: Use get_unaligned_*() instead of open-coding these functions
@ 2019-12-19  0:50 Bart Van Assche
  2019-12-19  8:44 ` Daniel Wagner
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Bart Van Assche @ 2019-12-19  0:50 UTC (permalink / raw)
  To: Martin K . Petersen, James E . J . Bottomley
  Cc: linux-scsi, Christoph Hellwig, Bart Van Assche, Himanshu Madhani,
	Quinn Tran, Martin Wilck, Daniel Wagner, Roman Bolshakov

This patch improves readability and does not change any functionality.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Daniel Wagner <dwagner@suse.de>
Cc: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/qla2xxx/qla_bsg.c    |  2 +-
 drivers/scsi/qla2xxx/qla_isr.c    | 12 ++++++------
 drivers/scsi/qla2xxx/qla_nx.c     |  6 +++---
 drivers/scsi/qla2xxx/qla_target.c | 12 ++++++------
 drivers/scsi/qla2xxx/qla_target.h |  3 +--
 5 files changed, 17 insertions(+), 18 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index cbaf178fc979..941c40e13acc 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -796,7 +796,7 @@ qla2x00_process_loopback(struct bsg_job *bsg_job)
 
 	if (atomic_read(&vha->loop_state) == LOOP_READY &&
 	    (ha->current_topology == ISP_CFG_F ||
-	    (le32_to_cpu(*(uint32_t *)req_data) == ELS_OPCODE_BYTE &&
+	    (get_unaligned_le32(req_data) == ELS_OPCODE_BYTE &&
 	     req_data_len == MAX_ELS_FRAME_PAYLOAD)) &&
 	    elreq.options == EXTERNAL_LOOPBACK) {
 		type = "FC_BSG_HST_VENDOR_ECHO_DIAG";
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index ddd73b7c14d5..efb3ac31138d 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -2152,12 +2152,12 @@ qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
 	 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
 	 * would make guard field appear at offset 2
 	 */
-	a_guard   = le16_to_cpu(*(uint16_t *)(ap + 2));
-	a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
-	a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
-	e_guard   = le16_to_cpu(*(uint16_t *)(ep + 2));
-	e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
-	e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
+	a_guard   = get_unaligned_le16(ap + 2);
+	a_app_tag = get_unaligned_le16(ap + 0);
+	a_ref_tag = get_unaligned_le32(ap + 4);
+	e_guard   = get_unaligned_le16(ep + 2);
+	e_app_tag = get_unaligned_le16(ep + 0);
+	e_ref_tag = get_unaligned_le32(ep + 4);
 
 	ql_dbg(ql_dbg_io, vha, 0x3023,
 	    "iocb(s) %p Returned STATUS.\n", sts24);
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index c855d013ba8a..49b1a43802c1 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -1882,7 +1882,7 @@ qla82xx_set_product_offset(struct qla_hw_data *ha)
 static int
 qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
 {
-	__le32 val;
+	uint32_t val;
 	uint32_t min_size;
 	struct qla_hw_data *ha = vha->hw;
 	const struct firmware *fw = ha->hablob->fw;
@@ -1895,8 +1895,8 @@ qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
 
 		min_size = QLA82XX_URI_FW_MIN_SIZE;
 	} else {
-		val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
-		if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
+		val = get_unaligned_le32(&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
+		if (val != QLA82XX_BDINFO_MAGIC)
 			return -EINVAL;
 
 		min_size = QLA82XX_FW_MIN_SIZE;
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 68c14143e50e..7d6132ce67b5 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -3446,13 +3446,13 @@ qlt_handle_dif_error(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd,
 
 	cmd->trc_flags |= TRC_DIF_ERR;
 
-	cmd->a_guard   = be16_to_cpu(*(uint16_t *)(ap + 0));
-	cmd->a_app_tag = be16_to_cpu(*(uint16_t *)(ap + 2));
-	cmd->a_ref_tag = be32_to_cpu(*(uint32_t *)(ap + 4));
+	cmd->a_guard   = get_unaligned_be16(ap + 0);
+	cmd->a_app_tag = get_unaligned_be16(ap + 2);
+	cmd->a_ref_tag = get_unaligned_be32(ap + 4);
 
-	cmd->e_guard   = be16_to_cpu(*(uint16_t *)(ep + 0));
-	cmd->e_app_tag = be16_to_cpu(*(uint16_t *)(ep + 2));
-	cmd->e_ref_tag = be32_to_cpu(*(uint32_t *)(ep + 4));
+	cmd->e_guard   = get_unaligned_be16(ep + 0);
+	cmd->e_app_tag = get_unaligned_be16(ep + 2);
+	cmd->e_ref_tag = get_unaligned_be32(ep + 4);
 
 	ql_dbg(ql_dbg_tgt_dif, vha, 0xf075,
 	    "%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state);
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index d006f0a97b8c..6539499e9e95 100644
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -379,8 +379,7 @@ static inline int get_datalen_for_atio(struct atio_from_isp *atio)
 {
 	int len = atio->u.isp24.fcp_cmnd.add_cdb_len;
 
-	return (be32_to_cpu(get_unaligned((uint32_t *)
-	    &atio->u.isp24.fcp_cmnd.add_cdb[len * 4])));
+	return get_unaligned_be32(&atio->u.isp24.fcp_cmnd.add_cdb[len * 4]);
 }
 
 #define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */

^ permalink raw reply related	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-01-03  2:56 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2019-12-19  0:50 [PATCH] qla2xxx: Use get_unaligned_*() instead of open-coding these functions Bart Van Assche
2019-12-19  8:44 ` Daniel Wagner
2019-12-20 14:15 ` Roman Bolshakov
2020-01-03  2:56 ` Martin K. Petersen

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