From d103adb30049e293348ba6c71f5bc6636ffbeaef Mon Sep 17 00:00:00 2001 From: Himanshu Jha Date: Sat, 30 Dec 2017 20:58:24 +0530 Subject: [PATCH] scsi: qla4xxx: Use zeroing allocator rather than allocator/memset Use dma_zalloc_coherent instead of dma_alloc_coherent followed by memset 0. Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci Suggested-by: Luis R. Rodriguez Signed-off-by: Himanshu Jha Acked-by: Manish Rangankar Signed-off-by: Martin K. Petersen --- drivers/scsi/qla4xxx/ql4_init.c | 5 ++--- drivers/scsi/qla4xxx/ql4_mbx.c | 21 +++++++++------------ drivers/scsi/qla4xxx/ql4_nx.c | 5 ++--- drivers/scsi/qla4xxx/ql4_os.c | 12 +++++------- 4 files changed, 18 insertions(+), 25 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 5d6d158bbfd6..52b1a0bc93c9 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -153,15 +153,14 @@ int qla4xxx_get_sys_info(struct scsi_qla_host *ha) dma_addr_t sys_info_dma; int status = QLA_ERROR; - sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info), - &sys_info_dma, GFP_KERNEL); + sys_info = dma_zalloc_coherent(&ha->pdev->dev, sizeof(*sys_info), + &sys_info_dma, GFP_KERNEL); if (sys_info == NULL) { DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", ha->host_no, __func__)); goto exit_get_sys_info_no_free; } - memset(sys_info, 0, sizeof(*sys_info)); /* Get flash sys info */ if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO, diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index 1da04f323d38..bda2e64ee5ca 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -625,15 +625,14 @@ int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha) uint32_t mbox_sts[MBOX_REG_COUNT]; int status = QLA_ERROR; - init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, - sizeof(struct addr_ctrl_blk), - &init_fw_cb_dma, GFP_KERNEL); + init_fw_cb = dma_zalloc_coherent(&ha->pdev->dev, + sizeof(struct addr_ctrl_blk), + &init_fw_cb_dma, GFP_KERNEL); if (init_fw_cb == NULL) { DEBUG2(printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no, __func__)); goto exit_init_fw_cb_no_free; } - memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); /* Get Initialize Firmware Control Block. */ memset(&mbox_cmd, 0, sizeof(mbox_cmd)); @@ -710,9 +709,9 @@ int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha) uint32_t mbox_cmd[MBOX_REG_COUNT]; uint32_t mbox_sts[MBOX_REG_COUNT]; - init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, - sizeof(struct addr_ctrl_blk), - &init_fw_cb_dma, GFP_KERNEL); + init_fw_cb = dma_zalloc_coherent(&ha->pdev->dev, + sizeof(struct addr_ctrl_blk), + &init_fw_cb_dma, GFP_KERNEL); if (init_fw_cb == NULL) { printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no, __func__); @@ -720,7 +719,6 @@ int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha) } /* Get Initialize Firmware Control Block. */ - memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n", @@ -1342,16 +1340,15 @@ int qla4xxx_about_firmware(struct scsi_qla_host *ha) uint32_t mbox_sts[MBOX_REG_COUNT]; int status = QLA_ERROR; - about_fw = dma_alloc_coherent(&ha->pdev->dev, - sizeof(struct about_fw_info), - &about_fw_dma, GFP_KERNEL); + about_fw = dma_zalloc_coherent(&ha->pdev->dev, + sizeof(struct about_fw_info), + &about_fw_dma, GFP_KERNEL); if (!about_fw) { DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to alloc memory " "for about_fw\n", __func__)); return status; } - memset(about_fw, 0, sizeof(struct about_fw_info)); memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c index e91abb327745..968bd85610f8 100644 --- a/drivers/scsi/qla4xxx/ql4_nx.c +++ b/drivers/scsi/qla4xxx/ql4_nx.c @@ -4050,15 +4050,14 @@ int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha) dma_addr_t sys_info_dma; int status = QLA_ERROR; - sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info), - &sys_info_dma, GFP_KERNEL); + sys_info = dma_zalloc_coherent(&ha->pdev->dev, sizeof(*sys_info), + &sys_info_dma, GFP_KERNEL); if (sys_info == NULL) { DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", ha->host_no, __func__)); return status; } - memset(sys_info, 0, sizeof(*sys_info)); memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 2b8a8ce2a431..82e889bbe0ed 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -2689,16 +2689,15 @@ qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) uint32_t rem = len; struct nlattr *attr; - init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, - sizeof(struct addr_ctrl_blk), - &init_fw_cb_dma, GFP_KERNEL); + init_fw_cb = dma_zalloc_coherent(&ha->pdev->dev, + sizeof(struct addr_ctrl_blk), + &init_fw_cb_dma, GFP_KERNEL); if (!init_fw_cb) { ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", __func__); return -ENOMEM; } - memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); @@ -4196,15 +4195,14 @@ static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) sizeof(struct shadow_regs) + MEM_ALIGN_VALUE + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); - ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, - &ha->queues_dma, GFP_KERNEL); + ha->queues = dma_zalloc_coherent(&ha->pdev->dev, ha->queues_len, + &ha->queues_dma, GFP_KERNEL); if (ha->queues == NULL) { ql4_printk(KERN_WARNING, ha, "Memory Allocation failed - queues.\n"); goto mem_alloc_error_exit; } - memset(ha->queues, 0, ha->queues_len); /* * As per RISC alignment requirements -- the bus-address must be a -- 2.39.5