On Thu, 2015-11-26 at 19:41 +0800, Ching Huang wrote:
> split dma resource allocation and io register assignment from get_config to a new function arcmsr_alloc_io_queue.
trivia:
> diff -uprN a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
[]
> +static bool arcmsr_alloc_io_queue(struct AdapterControlBlock *acb)
> +{
[]
> + dma_coherent = dma_alloc_coherent(&pdev->dev, acb->roundup_ccbsize,
> + &dma_coherent_handle, GFP_KERNEL);
> + if (!dma_coherent){
> + pr_notice("arcmsr%d: DMA allocation failed.\n", acb->host->host_no);
> + return false;
> + }
> + memset(dma_coherent, 0, acb->roundup_ccbsize);
>
There is a dma_zalloc_coherent
(and even more trivially)
Most all of your error messages don't use periods.
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