Merge tag 'renesas-boards-cleanups2-for-v3.19' of git://git.kernel.org/pub/scm/linux...

[firefly-linux-kernel-4.4.55.git] / arch / powerpc / kernel / dma.c

diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index adac9dc54aeed2c748ae62a7a3cd1ad9fad8eb2f..484b2d4462c10cd954aad0a5e9cb7776022b1db1 100644 (file)
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -53,9 +53,16 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 #else
        struct page *page;
        int node = dev_to_node(dev);
+#ifdef CONFIG_FSL_SOC
        u64 pfn = get_pfn_limit(dev);
        int zone;
 
+       /*
+        * This code should be OK on other platforms, but we have drivers that
+        * don't set coherent_dma_mask. As a workaround we just ifdef it. This
+        * whole routine needs some serious cleanup.
+        */
+
        zone = dma_pfn_limit_to_zone(pfn);
        if (zone < 0) {
                dev_err(dev, "%s: No suitable zone for pfn %#llx\n",
@@ -73,6 +80,7 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size,
                break;
 #endif
        };
+#endif /* CONFIG_FSL_SOC */
 
        /* ignore region specifiers */
        flag  &= ~(__GFP_HIGHMEM);