From: Himanshu Jha <himanshujha199640@gmail.com>
Date: Sat, 30 Dec 2017 20:58:25 +0530
Subject: scsi: qla2xxx: Use zeroing allocator rather than allocator/memset
Patch-mainline: v4.16-rc1
Git-commit: 0558312110def79e1b8bc20133dc50bb11c62e6e
References: bsc#1077338
Use dma_zalloc_coherent and vzalloc instead of dma_alloc_coherent and
vmalloc respectively, followed by memset 0.
Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci
Suggested-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
---
drivers/scsi/qla2xxx/qla_attr.c | 5 ++---
drivers/scsi/qla2xxx/qla_bsg.c | 9 +++------
drivers/scsi/qla2xxx/tcm_qla2xxx.c | 5 +----
3 files changed, 6 insertions(+), 13 deletions(-)
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1843,14 +1843,13 @@ qla2x00_get_fc_host_stats(struct Scsi_Ho
if (qla2x00_reset_active(vha))
goto done;
- stats = dma_alloc_coherent(&ha->pdev->dev,
- sizeof(*stats), &stats_dma, GFP_KERNEL);
+ stats = dma_zalloc_coherent(&ha->pdev->dev, sizeof(*stats),
+ &stats_dma, GFP_KERNEL);
if (!stats) {
ql_log(ql_log_warn, vha, 0x707d,
"Failed to allocate memory for stats.\n");
goto done;
}
- memset(stats, 0, sizeof(*stats));
rval = QLA_FUNCTION_FAILED;
if (IS_FWI2_CAPABLE(ha)) {
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -1435,7 +1435,7 @@ qla2x00_optrom_setup(struct bsg_job *bsg
ha->optrom_state = QLA_SREADING;
}
- ha->optrom_buffer = vmalloc(ha->optrom_region_size);
+ ha->optrom_buffer = vzalloc(ha->optrom_region_size);
if (!ha->optrom_buffer) {
ql_log(ql_log_warn, vha, 0x7059,
"Read: Unable to allocate memory for optrom retrieval "
@@ -1445,7 +1445,6 @@ qla2x00_optrom_setup(struct bsg_job *bsg
return -ENOMEM;
}
- memset(ha->optrom_buffer, 0, ha->optrom_region_size);
return 0;
}
@@ -2314,16 +2313,14 @@ qla2x00_get_priv_stats(struct bsg_job *b
if (!IS_FWI2_CAPABLE(ha))
return -EPERM;
- stats = dma_alloc_coherent(&ha->pdev->dev,
- sizeof(*stats), &stats_dma, GFP_KERNEL);
+ stats = dma_zalloc_coherent(&ha->pdev->dev, sizeof(*stats),
+ &stats_dma, GFP_KERNEL);
if (!stats) {
ql_log(ql_log_warn, vha, 0x70e2,
"Failed to allocate memory for stats.\n");
return -ENOMEM;
}
- memset(stats, 0, sizeof(*stats));
-
rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma, options);
if (rval == QLA_SUCCESS) {
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -1663,16 +1663,13 @@ static int tcm_qla2xxx_init_lport(struct
return rc;
}
- lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) *
- 65536);
+ lport->lport_loopid_map = vzalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
if (!lport->lport_loopid_map) {
pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
btree_destroy32(&lport->lport_fcport_map);
return -ENOMEM;
}
- memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid)
- * 65536);
pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n",
sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
return 0;