net: remove k{un}map_skb_frag()

Since commit 3e4d3af501 (mm: stack based kmap_atomic()) we dont have
to disable BH anymore while mapping skb frags.

We can remove kmap_skb_frag() / kunmap_skb_frag() helpers and use
kmap_atomic() / kunmap_atomic()

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 19 deletions

diff --git a/net/core/kmap_skb.h b/net/core/kmap_skb.h
deleted file mode 100644
index 52d0a445904..00000000000
--- a/net/core/kmap_skb.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#include <linux/highmem.h>
-
-static inline void *kmap_skb_frag(const skb_frag_t *frag)
-{
-#ifdef CONFIG_HIGHMEM
-	BUG_ON(in_irq());
-
-	local_bh_disable();
-#endif
-	return kmap_atomic(skb_frag_page(frag));
-}
-
-static inline void kunmap_skb_frag(void *vaddr)
-{
-	kunmap_atomic(vaddr);
-#ifdef CONFIG_HIGHMEM
-	local_bh_enable();
-#endif
-}