Is it possible to map a address like skb->data in to struct page. My requirement is to convert multiple skb
to a single master skb, having all the data of other skb. i.e, i want add skb->data of multiple skb to a single skb
as the fragments. So instead of making a memcpy every time, i just call skb_add_rx_frag
my requirement is some thing like this
.
.
struct page *page = virt_to_page(skb->data);
skb_add_rx_frag(master_skb, skb_shinfo(master_skb)->nr_frags, page, off, skb->len)
.
.
And can some one please tell what is the use of the functions like virt_to_page and kmap_atomic_to_page,
i tried calling virt_to_page(skb->data), but when i print the data in the page address ( page_address(page) ) and
the data in pointed by skb->data, i came to know its mapping to a wrong page. so can some one please explain
me what is correct way to do this.
Thanks in advance.
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