From: Bart Van Assche <bvanassche@acm.org>
Date: Thu, 8 Aug 2019 20:01:35 -0700
Subject: scsi: qla2xxx: Reduce the number of casts in GID list code
Patch-mainline: v5.4-rc1
Git-commit: 9c17c3b1e0490e436d17b63e8751b2fba030c0f7
References: bsc#1123034 bsc#1131304 bsc#1127988 bsc#1143706
This patch makes the code that parses the GID list easier to read without
changing the behavior of the code.
Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
drivers/scsi/qla2xxx/qla_dfs.c | 9 +++------
drivers/scsi/qla2xxx/qla_init.c | 18 ++++++++----------
drivers/scsi/qla2xxx/qla_target.c | 9 +++------
3 files changed, 14 insertions(+), 22 deletions(-)
--- a/drivers/scsi/qla2xxx/qla_dfs.c
+++ b/drivers/scsi/qla2xxx/qla_dfs.c
@@ -57,10 +57,9 @@ qla2x00_dfs_tgt_port_database_show(struc
{
scsi_qla_host_t *vha = s->private;
struct qla_hw_data *ha = vha->hw;
- struct gid_list_info *gid_list;
+ struct gid_list_info *gid_list, *gid;
dma_addr_t gid_list_dma;
fc_port_t fc_port;
- char *id_iter;
int rc, i;
uint16_t entries, loop_id;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
@@ -82,13 +81,11 @@ qla2x00_dfs_tgt_port_database_show(struc
if (rc != QLA_SUCCESS)
goto out_free_id_list;
- id_iter = (char *)gid_list;
+ gid = gid_list;
seq_puts(s, "Port Name Port ID Loop ID\n");
for (i = 0; i < entries; i++) {
- struct gid_list_info *gid =
- (struct gid_list_info *)id_iter;
loop_id = le16_to_cpu(gid->loop_id);
memset(&fc_port, 0, sizeof(fc_port_t));
@@ -99,7 +96,7 @@ qla2x00_dfs_tgt_port_database_show(struc
fc_port.port_name, fc_port.d_id.b.domain,
fc_port.d_id.b.area, fc_port.d_id.b.al_pa,
fc_port.loop_id);
- id_iter += ha->gid_list_info_size;
+ gid = (void *)gid + ha->gid_list_info_size;
}
out_free_id_list:
dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -5086,7 +5086,7 @@ qla2x00_configure_local_loop(scsi_qla_ho
uint16_t index;
uint16_t entries;
- char *id_iter;
+ struct gid_list_info *gid;
uint16_t loop_id;
uint8_t domain, area, al_pa;
struct qla_hw_data *ha = vha->hw;
@@ -5161,18 +5161,16 @@ qla2x00_configure_local_loop(scsi_qla_ho
new_fcport->flags &= ~FCF_FABRIC_DEVICE;
/* Add devices to port list. */
- id_iter = (char *)ha->gid_list;
+ gid = ha->gid_list;
for (index = 0; index < entries; index++) {
- domain = ((struct gid_list_info *)id_iter)->domain;
- area = ((struct gid_list_info *)id_iter)->area;
- al_pa = ((struct gid_list_info *)id_iter)->al_pa;
+ domain = gid->domain;
+ area = gid->area;
+ al_pa = gid->al_pa;
if (IS_QLA2100(ha) || IS_QLA2200(ha))
- loop_id = (uint16_t)
- ((struct gid_list_info *)id_iter)->loop_id_2100;
+ loop_id = gid->loop_id_2100;
else
- loop_id = le16_to_cpu(
- ((struct gid_list_info *)id_iter)->loop_id);
- id_iter += ha->gid_list_info_size;
+ loop_id = le16_to_cpu(gid->loop_id);
+ gid = (void *)gid + ha->gid_list_info_size;
/* Bypass reserved domain fields. */
if ((domain & 0xf0) == 0xf0)
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1299,8 +1299,7 @@ static int qla24xx_get_loop_id(struct sc
{
struct qla_hw_data *ha = vha->hw;
dma_addr_t gid_list_dma;
- struct gid_list_info *gid_list;
- char *id_iter;
+ struct gid_list_info *gid_list, *gid;
int res, rc, i;
uint16_t entries;
@@ -1323,11 +1322,9 @@ static int qla24xx_get_loop_id(struct sc
goto out_free_id_list;
}
- id_iter = (char *)gid_list;
+ gid = gid_list;
res = -ENOENT;
for (i = 0; i < entries; i++) {
- struct gid_list_info *gid = (struct gid_list_info *)id_iter;
-
if ((gid->al_pa == s_id[2]) &&
(gid->area == s_id[1]) &&
(gid->domain == s_id[0])) {
@@ -1335,7 +1332,7 @@ static int qla24xx_get_loop_id(struct sc
res = 0;
break;
}
- id_iter += ha->gid_list_info_size;
+ gid = (void *)gid + ha->gid_list_info_size;
}
out_free_id_list: