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s390/pci: inline get_zdev

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Inline get_zdev to save ~200 bytes of kernel text for CONFIG_PCI=y.
Also rename the function to to_zpci to make clear that we don't do
reference counting here.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott
2015-06-23 14:06:35 +02:00
committed by Martin Schwidefsky
parent 2acb94f431
commit 198a527894
4 changed files with 20 additions and 21 deletions
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8
arch/s390/pci/pci_dma.c
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@@ -277,7 +277,7 @@ static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
struct zpci_dev *zdev = to_zpci(to_pci_dev(dev));
unsigned long nr_pages, iommu_page_index;
unsigned long pa = page_to_phys(page) + offset;
int flags = ZPCI_PTE_VALID;
@@ -316,7 +316,7 @@ static void s390_dma_unmap_pages(struct device *dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction direction,
struct dma_attrs *attrs)
{
struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
struct zpci_dev *zdev = to_zpci(to_pci_dev(dev));
unsigned long iommu_page_index;
int npages;
@@ -337,7 +337,7 @@ static void *s390_dma_alloc(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag,
struct dma_attrs *attrs)
{
struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
struct zpci_dev *zdev = to_zpci(to_pci_dev(dev));
struct page *page;
unsigned long pa;
dma_addr_t map;
@@ -367,7 +367,7 @@ static void s390_dma_free(struct device *dev, size_t size,
void *pa, dma_addr_t dma_handle,
struct dma_attrs *attrs)
{
struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
struct zpci_dev *zdev = to_zpci(to_pci_dev(dev));
size = PAGE_ALIGN(size);
atomic64_sub(size / PAGE_SIZE, &zdev->allocated_pages);