diff options
| -rw-r--r-- | drivers/block/cciss.c | 43 | ||||
| -rw-r--r-- | drivers/block/cciss.h | 8 |
2 files changed, 16 insertions, 35 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index eddb916d290..adc517c1381 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -257,7 +257,7 @@ static inline void removeQ(CommandList_struct *c) hlist_del_init(&c->list); } -static void cciss_free_sg_chain_blocks(struct Cmd_sg_list **cmd_sg_list, +static void cciss_free_sg_chain_blocks(SGDescriptor_struct **cmd_sg_list, int nr_cmds) { int i; @@ -265,20 +265,17 @@ static void cciss_free_sg_chain_blocks(struct Cmd_sg_list **cmd_sg_list, if (!cmd_sg_list) return; for (i = 0; i < nr_cmds; i++) { - if (cmd_sg_list[i]) { - kfree(cmd_sg_list[i]->sgchain); - kfree(cmd_sg_list[i]); - cmd_sg_list[i] = NULL; - } + kfree(cmd_sg_list[i]); + cmd_sg_list[i] = NULL; } kfree(cmd_sg_list); } -static struct Cmd_sg_list **cciss_allocate_sg_chain_blocks(ctlr_info_t *h, - int chainsize, int nr_cmds) +static SGDescriptor_struct **cciss_allocate_sg_chain_blocks( + ctlr_info_t *h, int chainsize, int nr_cmds) { int j; - struct Cmd_sg_list **cmd_sg_list; + SGDescriptor_struct **cmd_sg_list; if (chainsize <= 0) return NULL; @@ -289,16 +286,10 @@ static struct Cmd_sg_list **cciss_allocate_sg_chain_blocks(ctlr_info_t *h, /* Build up chain blocks for each command */ for (j = 0; j < nr_cmds; j++) { - cmd_sg_list[j] = kmalloc(sizeof(*cmd_sg_list[j]), GFP_KERNEL); - if (!cmd_sg_list[j]) { - dev_err(&h->pdev->dev, "Cannot get memory " - "for chain block.\n"); - goto clean; - } /* Need a block of chainsized s/g elements. */ - cmd_sg_list[j]->sgchain = kmalloc((chainsize * - sizeof(SGDescriptor_struct)), GFP_KERNEL); - if (!cmd_sg_list[j]->sgchain) { + cmd_sg_list[j] = kmalloc((chainsize * + sizeof(*cmd_sg_list[j])), GFP_KERNEL); + if (!cmd_sg_list[j]) { dev_err(&h->pdev->dev, "Cannot get memory " "for s/g chains.\n"); goto clean; @@ -1731,7 +1722,7 @@ static void cciss_softirq_done(struct request *rq) pci_unmap_single(h->pdev, temp64.val, cmd->SG[i].Len, ddir); /* Point to the next block */ - curr_sg = h->cmd_sg_list[cmd->cmdindex]->sgchain; + curr_sg = h->cmd_sg_list[cmd->cmdindex]; sg_index = 0; } temp64.val32.lower = curr_sg[sg_index].Addr.lower; @@ -3206,7 +3197,7 @@ static void do_cciss_request(struct request_queue *q) curr_sg[sg_index].Ext = CCISS_SG_CHAIN; /* Point to next chain block. */ - curr_sg = h->cmd_sg_list[c->cmdindex]->sgchain; + curr_sg = h->cmd_sg_list[c->cmdindex]; sg_index = 0; chained = 1; } @@ -3223,6 +3214,7 @@ static void do_cciss_request(struct request_queue *q) if (chained) { int len; + dma_addr_t dma_addr; curr_sg = c->SG; sg_index = h->max_cmd_sgentries - 1; len = curr_sg[sg_index].Len; @@ -3231,16 +3223,11 @@ static void do_cciss_request(struct request_queue *q) * block with address of next chain block. */ temp64.val = pci_map_single(h->pdev, - h->cmd_sg_list[c->cmdindex]->sgchain, - len, dir); - - h->cmd_sg_list[c->cmdindex]->sg_chain_dma = temp64.val; + h->cmd_sg_list[c->cmdindex], len, dir); + dma_addr = temp64.val; curr_sg[sg_index].Addr.lower = temp64.val32.lower; curr_sg[sg_index].Addr.upper = temp64.val32.upper; - - pci_dma_sync_single_for_device(h->pdev, - h->cmd_sg_list[c->cmdindex]->sg_chain_dma, - len, dir); + pci_dma_sync_single_for_device(h->pdev, dma_addr, len, dir); } /* track how many SG entries we are using */ diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h index 2b07bdacbd1..ac454fdd4d3 100644 --- a/drivers/block/cciss.h +++ b/drivers/block/cciss.h @@ -55,12 +55,6 @@ typedef struct _drive_info_struct char device_initialized; /* indicates whether dev is initialized */ } drive_info_struct; -struct Cmd_sg_list { - SGDescriptor_struct *sgchain; - dma_addr_t sg_chain_dma; - int chain_block_size; -}; - struct ctlr_info { int ctlr; @@ -89,7 +83,7 @@ struct ctlr_info int maxsgentries; int chainsize; int max_cmd_sgentries; - struct Cmd_sg_list **cmd_sg_list; + SGDescriptor_struct **cmd_sg_list; # define DOORBELL_INT 0 # define PERF_MODE_INT 1 |