1 #include <linux/highmem.h>
2 
kmap_skb_frag(const skb_frag_t * frag)3 static inline void *kmap_skb_frag(const skb_frag_t *frag)
4 {
5 #ifdef CONFIG_HIGHMEM
6 	BUG_ON(in_irq());
7 
8 	local_bh_disable();
9 #endif
10 	return kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ);
11 }
12 
kunmap_skb_frag(void * vaddr)13 static inline void kunmap_skb_frag(void *vaddr)
14 {
15 	kunmap_atomic(vaddr, KM_SKB_DATA_SOFTIRQ);
16 #ifdef CONFIG_HIGHMEM
17 	local_bh_enable();
18 #endif
19 }
20