From 7c845eb5e184977d9c7135ae20d012b59f8cc729 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Fri, 8 Aug 2014 14:24:46 -0700 Subject: [PATCH] scsi: use pci_zalloc_consistent Remove the now unnecessary memset too. Signed-off-by: Joe Perches Cc: Adam Radford Cc: "James E.J. Bottomley" Cc: Jayamohan Kallickal Cc: Dario Ballabio Cc: Michael Neuffer Cc: "Stephen M. Cameron" Cc: Neela Syam Kolli Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/scsi/3w-sas.c | 5 ++--- drivers/scsi/a100u2w.c | 8 ++------ drivers/scsi/be2iscsi/be_main.c | 10 ++++------ drivers/scsi/be2iscsi/be_mgmt.c | 3 +-- drivers/scsi/csiostor/csio_wr.c | 8 +------- drivers/scsi/eata.c | 5 ++--- drivers/scsi/hpsa.c | 8 +++----- drivers/scsi/megaraid/megaraid_mbox.c | 16 +++++++--------- drivers/scsi/megaraid/megaraid_sas_base.c | 8 +++----- drivers/scsi/mesh.c | 6 ++---- drivers/scsi/mvumi.c | 9 +++------ drivers/scsi/pm8001/pm8001_sas.c | 5 ++--- 12 files changed, 32 insertions(+), 59 deletions(-) diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c index 4de346017e9f..6da6cec9a651 100644 --- a/drivers/scsi/3w-sas.c +++ b/drivers/scsi/3w-sas.c @@ -683,14 +683,13 @@ static int twl_allocate_memory(TW_Device_Extension *tw_dev, int size, int which) unsigned long *cpu_addr; int retval = 1; - cpu_addr = pci_alloc_consistent(tw_dev->tw_pci_dev, size*TW_Q_LENGTH, &dma_handle); + cpu_addr = pci_zalloc_consistent(tw_dev->tw_pci_dev, size * TW_Q_LENGTH, + &dma_handle); if (!cpu_addr) { TW_PRINTK(tw_dev->host, TW_DRIVER, 0x5, "Memory allocation failed"); goto out; } - memset(cpu_addr, 0, size*TW_Q_LENGTH); - for (i = 0; i < TW_Q_LENGTH; i++) { switch(which) { case 0: diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c index 522570d297ca..7e33a61c1ba4 100644 --- a/drivers/scsi/a100u2w.c +++ b/drivers/scsi/a100u2w.c @@ -1125,23 +1125,19 @@ static int inia100_probe_one(struct pci_dev *pdev, /* Get total memory needed for SCB */ sz = ORC_MAXQUEUE * sizeof(struct orc_scb); - host->scb_virt = pci_alloc_consistent(pdev, sz, - &host->scb_phys); + host->scb_virt = pci_zalloc_consistent(pdev, sz, &host->scb_phys); if (!host->scb_virt) { printk("inia100: SCB memory allocation error\n"); goto out_host_put; } - memset(host->scb_virt, 0, sz); /* Get total memory needed for ESCB */ sz = ORC_MAXQUEUE * sizeof(struct orc_extended_scb); - host->escb_virt = pci_alloc_consistent(pdev, sz, - &host->escb_phys); + host->escb_virt = pci_zalloc_consistent(pdev, sz, &host->escb_phys); if (!host->escb_virt) { printk("inia100: ESCB memory allocation error\n"); goto out_free_scb_array; } - memset(host->escb_virt, 0, sz); biosaddr = host->BIOScfg; biosaddr = (biosaddr << 4); diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index 56467df3d6de..eb3e3e619155 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -3538,10 +3538,9 @@ static int be_queue_alloc(struct beiscsi_hba *phba, struct be_queue_info *q, q->len = len; q->entry_size = entry_size; mem->size = len * entry_size; - mem->va = pci_alloc_consistent(phba->pcidev, mem->size, &mem->dma); + mem->va = pci_zalloc_consistent(phba->pcidev, mem->size, &mem->dma); if (!mem->va) return -ENOMEM; - memset(mem->va, 0, mem->size); return 0; } @@ -4320,9 +4319,9 @@ static int beiscsi_get_boot_info(struct beiscsi_hba *phba) "BM_%d : No boot session\n"); return ret; } - nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, - sizeof(*session_resp), - &nonemb_cmd.dma); + nonemb_cmd.va = pci_zalloc_consistent(phba->ctrl.pdev, + sizeof(*session_resp), + &nonemb_cmd.dma); if (nonemb_cmd.va == NULL) { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG, @@ -4332,7 +4331,6 @@ static int beiscsi_get_boot_info(struct beiscsi_hba *phba) return -ENOMEM; } - memset(nonemb_cmd.va, 0, sizeof(*session_resp)); tag = mgmt_get_session_info(phba, s_handle, &nonemb_cmd); if (!tag) { diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c index a3e56487616c..665afcb74a56 100644 --- a/drivers/scsi/be2iscsi/be_mgmt.c +++ b/drivers/scsi/be2iscsi/be_mgmt.c @@ -900,13 +900,12 @@ static int mgmt_exec_nonemb_cmd(struct beiscsi_hba *phba, static int mgmt_alloc_cmd_data(struct beiscsi_hba *phba, struct be_dma_mem *cmd, int iscsi_cmd, int size) { - cmd->va = pci_alloc_consistent(phba->ctrl.pdev, size, &cmd->dma); + cmd->va = pci_zalloc_consistent(phba->ctrl.pdev, size, &cmd->dma); if (!cmd->va) { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, "BG_%d : Failed to allocate memory for if info\n"); return -ENOMEM; } - memset(cmd->va, 0, size); cmd->size = size; be_cmd_hdr_prepare(cmd->va, CMD_SUBSYSTEM_ISCSI, iscsi_cmd, size); return 0; diff --git a/drivers/scsi/csiostor/csio_wr.c b/drivers/scsi/csiostor/csio_wr.c index 4255ce264abf..773da14cfa14 100644 --- a/drivers/scsi/csiostor/csio_wr.c +++ b/drivers/scsi/csiostor/csio_wr.c @@ -232,7 +232,7 @@ csio_wr_alloc_q(struct csio_hw *hw, uint32_t qsize, uint32_t wrsize, q = wrm->q_arr[free_idx]; - q->vstart = pci_alloc_consistent(hw->pdev, qsz, &q->pstart); + q->vstart = pci_zalloc_consistent(hw->pdev, qsz, &q->pstart); if (!q->vstart) { csio_err(hw, "Failed to allocate DMA memory for " @@ -240,12 +240,6 @@ csio_wr_alloc_q(struct csio_hw *hw, uint32_t qsize, uint32_t wrsize, return -1; } - /* - * We need to zero out the contents, importantly for ingress, - * since we start with a generatiom bit of 1 for ingress. - */ - memset(q->vstart, 0, qsz); - q->type = type; q->owner = owner; q->pidx = q->cidx = q->inc_idx = 0; diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c index 03372cff38f3..813dd5c998e4 100644 --- a/drivers/scsi/eata.c +++ b/drivers/scsi/eata.c @@ -1238,8 +1238,8 @@ static int port_detect(unsigned long port_base, unsigned int j, struct eata_config *cf; dma_addr_t cf_dma_addr; - cf = pci_alloc_consistent(pdev, sizeof(struct eata_config), - &cf_dma_addr); + cf = pci_zalloc_consistent(pdev, sizeof(struct eata_config), + &cf_dma_addr); if (!cf) { printk @@ -1249,7 +1249,6 @@ static int port_detect(unsigned long port_base, unsigned int j, } /* Set board configuration */ - memset((char *)cf, 0, sizeof(struct eata_config)); cf->len = (ushort) H2DEV16((ushort) 510); cf->ocena = 1; diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 8545d1826725..6b35d0dfe64c 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4732,23 +4732,21 @@ static struct CommandList *cmd_special_alloc(struct ctlr_info *h) union u64bit temp64; dma_addr_t cmd_dma_handle, err_dma_handle; - c = pci_alloc_consistent(h->pdev, sizeof(*c), &cmd_dma_handle); + c = pci_zalloc_consistent(h->pdev, sizeof(*c), &cmd_dma_handle); if (c == NULL) return NULL; - memset(c, 0, sizeof(*c)); c->cmd_type = CMD_SCSI; c->cmdindex = -1; - c->err_info = pci_alloc_consistent(h->pdev, sizeof(*c->err_info), - &err_dma_handle); + c->err_info = pci_zalloc_consistent(h->pdev, sizeof(*c->err_info), + &err_dma_handle); if (c->err_info == NULL) { pci_free_consistent(h->pdev, sizeof(*c), c, cmd_dma_handle); return NULL; } - memset(c->err_info, 0, sizeof(*c->err_info)); INIT_LIST_HEAD(&c->list); c->busaddr = (u32) cmd_dma_handle; diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index e2237a97cb9d..531dce419c18 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -998,8 +998,9 @@ megaraid_alloc_cmd_packets(adapter_t *adapter) * Allocate the common 16-byte aligned memory for the handshake * mailbox. */ - raid_dev->una_mbox64 = pci_alloc_consistent(adapter->pdev, - sizeof(mbox64_t), &raid_dev->una_mbox64_dma); + raid_dev->una_mbox64 = pci_zalloc_consistent(adapter->pdev, + sizeof(mbox64_t), + &raid_dev->una_mbox64_dma); if (!raid_dev->una_mbox64) { con_log(CL_ANN, (KERN_WARNING @@ -1007,7 +1008,6 @@ megaraid_alloc_cmd_packets(adapter_t *adapter) __LINE__)); return -1; } - memset(raid_dev->una_mbox64, 0, sizeof(mbox64_t)); /* * Align the mailbox at 16-byte boundary @@ -1026,8 +1026,8 @@ megaraid_alloc_cmd_packets(adapter_t *adapter) align; // Allocate memory for commands issued internally - adapter->ibuf = pci_alloc_consistent(pdev, MBOX_IBUF_SIZE, - &adapter->ibuf_dma_h); + adapter->ibuf = pci_zalloc_consistent(pdev, MBOX_IBUF_SIZE, + &adapter->ibuf_dma_h); if (!adapter->ibuf) { con_log(CL_ANN, (KERN_WARNING @@ -1036,7 +1036,6 @@ megaraid_alloc_cmd_packets(adapter_t *adapter) goto out_free_common_mbox; } - memset(adapter->ibuf, 0, MBOX_IBUF_SIZE); // Allocate memory for our SCSI Command Blocks and their associated // memory @@ -2972,8 +2971,8 @@ megaraid_mbox_product_info(adapter_t *adapter) * Issue an ENQUIRY3 command to find out certain adapter parameters, * e.g., max channels, max commands etc. */ - pinfo = pci_alloc_consistent(adapter->pdev, sizeof(mraid_pinfo_t), - &pinfo_dma_h); + pinfo = pci_zalloc_consistent(adapter->pdev, sizeof(mraid_pinfo_t), + &pinfo_dma_h); if (pinfo == NULL) { con_log(CL_ANN, (KERN_WARNING @@ -2982,7 +2981,6 @@ megaraid_mbox_product_info(adapter_t *adapter) return -1; } - memset(pinfo, 0, sizeof(mraid_pinfo_t)); mbox->xferaddr = (uint32_t)adapter->ibuf_dma_h; memset((void *)adapter->ibuf, 0, MBOX_IBUF_SIZE); diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 112799b131a9..22a04e37b70a 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -2038,9 +2038,9 @@ int megasas_sriov_start_heartbeat(struct megasas_instance *instance, if (initial) { instance->hb_host_mem = - pci_alloc_consistent(instance->pdev, - sizeof(struct MR_CTRL_HB_HOST_MEM), - &instance->hb_host_mem_h); + pci_zalloc_consistent(instance->pdev, + sizeof(struct MR_CTRL_HB_HOST_MEM), + &instance->hb_host_mem_h); if (!instance->hb_host_mem) { printk(KERN_DEBUG "megasas: SR-IOV: Couldn't allocate" " memory for heartbeat host memory for " @@ -2048,8 +2048,6 @@ int megasas_sriov_start_heartbeat(struct megasas_instance *instance, retval = -ENOMEM; goto out; } - memset(instance->hb_host_mem, 0, - sizeof(struct MR_CTRL_HB_HOST_MEM)); } memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c index 7a6160f172ce..57a95e2c3442 100644 --- a/drivers/scsi/mesh.c +++ b/drivers/scsi/mesh.c @@ -1915,14 +1915,12 @@ static int mesh_probe(struct macio_dev *mdev, const struct of_device_id *match) /* We use the PCI APIs for now until the generic one gets fixed * enough or until we get some macio-specific versions */ - dma_cmd_space = pci_alloc_consistent(macio_get_pci_dev(mdev), - ms->dma_cmd_size, - &dma_cmd_bus); + dma_cmd_space = pci_zalloc_consistent(macio_get_pci_dev(mdev), + ms->dma_cmd_size, &dma_cmd_bus); if (dma_cmd_space == NULL) { printk(KERN_ERR "mesh: can't allocate DMA table\n"); goto out_unmap; } - memset(dma_cmd_space, 0, ms->dma_cmd_size); ms->dma_cmds = (struct dbdma_cmd *) DBDMA_ALIGN(dma_cmd_space); ms->dma_cmd_space = dma_cmd_space; diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c index edbee8dc62c9..3e716b2f611a 100644 --- a/drivers/scsi/mvumi.c +++ b/drivers/scsi/mvumi.c @@ -142,8 +142,8 @@ static struct mvumi_res *mvumi_alloc_mem_resource(struct mvumi_hba *mhba, case RESOURCE_UNCACHED_MEMORY: size = round_up(size, 8); - res->virt_addr = pci_alloc_consistent(mhba->pdev, size, - &res->bus_addr); + res->virt_addr = pci_zalloc_consistent(mhba->pdev, size, + &res->bus_addr); if (!res->virt_addr) { dev_err(&mhba->pdev->dev, "unable to allocate consistent mem," @@ -151,7 +151,6 @@ static struct mvumi_res *mvumi_alloc_mem_resource(struct mvumi_hba *mhba, kfree(res); return NULL; } - memset(res->virt_addr, 0, size); break; default: @@ -258,12 +257,10 @@ static int mvumi_internal_cmd_sgl(struct mvumi_hba *mhba, struct mvumi_cmd *cmd, if (size == 0) return 0; - virt_addr = pci_alloc_consistent(mhba->pdev, size, &phy_addr); + virt_addr = pci_zalloc_consistent(mhba->pdev, size, &phy_addr); if (!virt_addr) return -1; - memset(virt_addr, 0, size); - m_sg = (struct mvumi_sgl *) &cmd->frame->payload[0]; cmd->frame->sg_counts = 1; cmd->data_buf = virt_addr; diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c index 34cea8291772..76570e6a547d 100644 --- a/drivers/scsi/pm8001/pm8001_sas.c +++ b/drivers/scsi/pm8001/pm8001_sas.c @@ -116,13 +116,12 @@ int pm8001_mem_alloc(struct pci_dev *pdev, void **virt_addr, u64 align_offset = 0; if (align) align_offset = (dma_addr_t)align - 1; - mem_virt_alloc = - pci_alloc_consistent(pdev, mem_size + align, &mem_dma_handle); + mem_virt_alloc = pci_zalloc_consistent(pdev, mem_size + align, + &mem_dma_handle); if (!mem_virt_alloc) { pm8001_printk("memory allocation error\n"); return -1; } - memset((void *)mem_virt_alloc, 0, mem_size+align); *pphys_addr = mem_dma_handle; phys_align = (*pphys_addr + align_offset) & ~align_offset; *virt_addr = (void *)mem_virt_alloc + phys_align - *pphys_addr;