src/patches/backports-3.18.1-1_no_dma_sgtable_on_x86_64.patch

   1 diff -Naur backports-4.1.1-1.org/compat/dma-shared-helpers.c backports-4.1.1-1/compat/dma-shared-helpers.c
   2 --- backports-4.1.1-1.org/compat/dma-shared-helpers.c   2015-07-01 23:10:37.000000000 +0200
   3 +++ backports-4.1.1-1/compat/dma-shared-helpers.c       2015-09-25 13:29:14.006762269 +0200
   4 @@ -20,22 +20,3 @@
   5  #endif /* LINUX_VERSION_CODE <= KERNEL_VERSION(3,6,0) */
   6  #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0) */
   7
   8 -#if RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0)
   9 -/*
  10 - * Create scatter-list for the already allocated DMA buffer.
  11 - */
  12 -int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
  13 -                void *cpu_addr, dma_addr_t handle, size_t size)
  14 -{
  15 -       struct page *page = virt_to_page(cpu_addr);
  16 -       int ret;
  17 -
  18 -       ret = sg_alloc_table(sgt, 1, GFP_KERNEL);
  19 -       if (unlikely(ret))
  20 -               return ret;
  21 -
  22 -       sg_set_page(sgt->sgl, page, PAGE_ALIGN(size), 0);
  23 -       return 0;
  24 -}
  25 -EXPORT_SYMBOL_GPL(dma_common_get_sgtable);
  26 -#endif /* RHEL_RELEASE_CODE < RHEL_RELEASE_VERSION(7,0) */