Revert "microblaze: Kill NET_SKB_PAD and NET_IP_ALIGN overrides."

This reverts commit 39e0786d3cf39c6d2f47b4818ae2da8b8ebc9ce2.

On request from microblaze developers, they are going to handle
this differently.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h
index b1e2f0710098..48c4f0335e3f 100644
--- a/arch/microblaze/include/asm/system.h
+++ b/arch/microblaze/include/asm/system.h
@@ -97,4 +97,14 @@ extern struct dentry *of_debugfs_root;
 
 #define arch_align_stack(x) (x)
 
+/*
+ * MicroBlaze doesn't handle unaligned accesses in hardware.
+ *
+ * Based on this we force the IP header alignment in network drivers.
+ * We also modify NET_SKB_PAD to be a cacheline in size, thus maintaining
+ * cacheline alignment of buffers.
+ */
+#define NET_IP_ALIGN    2
+#define NET_SKB_PAD     L1_CACHE_BYTES
+
 #endif /* _ASM_MICROBLAZE_SYSTEM_H */