[ Using different address for Alexander ]
On 25/11/2015 13:36, Mason wrote:
> On 19/11/2015 14:02, Mans Rullgard wrote:
>
>> + if (dma_mapping_error(&dev->dev, dma_addr)) {
>> + skb_free_frag(data);
>> + return -ENOMEM;
>> + }
>
> I'm back-porting this driver to 4.1
>
> skb_free_frag() was introduced in 4.2 by 181edb2bfa22b IIUC.
>
> +static inline void skb_free_frag(void *addr)
> +{
> + __free_page_frag(addr);
> +}
>
> Should I just copy the definition of __free_page_frag() ?
>
> /*
> * Frees a page fragment allocated out of either a compound or order 0 page.
> */
> void __free_page_frag(void *addr)
> {
> struct page *page = virt_to_head_page(addr);
>
> if (unlikely(put_page_testzero(page)))
> __free_pages_ok(page, compound_order(page));
> }
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