[Xen-devel] [PATCH] Eliminate kernel version checks from i386/kernel/pci-dma.c

[Chris Wright <chrisw@xxxxxxxx>]

Eliminate kernel version checks from i386/kernel/pci-dma.c as a trivial
first pass cleanup towards merging.

Signed-off-by: Chris Wright <chrisw@xxxxxxxx>
---

 linux-2.6.11-xen-sparse/arch/xen/i386/kernel/pci-dma.c |   29 -----------------
 1 files changed, 29 deletions(-)

===== arch/xen/i386/kernel/pci-dma.c 1.20 vs edited =====
--- 1.20/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/pci-dma.c 2005-04-04 
08:38:39 -07:00
+++ edited/linux-2.6.11-xen-sparse/arch/xen/i386/kernel/pci-dma.c       
2005-04-15 11:11:09 -07:00
@@ -14,14 +14,7 @@
 #include <linux/version.h>
 #include <asm/io.h>
 #include <asm-xen/balloon.h>
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 #include <asm/tlbflush.h>
-#else
-#define pte_offset_kernel pte_offset
-#define pud_t pgd_t
-#define pud_offset(d, va) d
-#endif
 
 struct dma_coherent_mem {
        void            *virt_base;
@@ -85,24 +78,13 @@ xen_contig_memory(unsigned long vstart, 
        balloon_unlock(flags);
 }
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
-void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
-                          dma_addr_t *dma_handle)
-#else
 void *dma_alloc_coherent(struct device *dev, size_t size,
                           dma_addr_t *dma_handle, int gfp)
-#endif
 {
        void *ret;
        unsigned int order = get_order(size);
        unsigned long vstart;
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
-       int gfp = GFP_ATOMIC;
-
-       if (hwdev == NULL || ((u32)hwdev->dma_mask < 0xffffffff))
-               gfp |= GFP_DMA;
-#else
        struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;
 
        /* ignore region specifiers */
@@ -123,7 +105,6 @@ void *dma_alloc_coherent(struct device *
 
        if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
                gfp |= GFP_DMA;
-#endif
 
        vstart = __get_free_pages(gfp, order);
        ret = (void *)vstart;
@@ -138,14 +119,6 @@ void *dma_alloc_coherent(struct device *
        return ret;
 }
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
-void pci_free_consistent(struct pci_dev *hwdev, size_t size,
-                        void *vaddr, dma_addr_t dma_handle)
-{
-       free_pages((unsigned long)vaddr, get_order(size));
-}
-#else
-
 void dma_free_coherent(struct device *dev, size_t size,
                         void *vaddr, dma_addr_t dma_handle)
 {
@@ -236,5 +209,3 @@ void *dma_mark_declared_memory_occupied(
        return mem->virt_base + (pos << PAGE_SHIFT);
 }
 EXPORT_SYMBOL(dma_mark_declared_memory_occupied);
-
-#endif

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