diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index de3e59329b02..2f303454a323 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -2784,6 +2784,15 @@ static inline void skb_propagate_pfmemalloc(struct page *page, skb->pfmemalloc = true; } +/** + * skb_frag_off() - Returns the offset of a skb fragment + * @frag: the paged fragment + */ +static inline unsigned int skb_frag_off(const skb_frag_t *frag) +{ + return frag->page_offset; +} + /** * skb_frag_page - retrieve the page referred to by a paged fragment * @frag: the paged fragment diff --git a/net/core/dev.c b/net/core/dev.c index aa419f3162b8..ea09e0809c12 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4763,7 +4763,8 @@ static void skb_gro_reset_offset(struct sk_buff *skb) if (skb_mac_header(skb) == skb_tail_pointer(skb) && pinfo->nr_frags && - !PageHighMem(skb_frag_page(frag0))) { + !PageHighMem(skb_frag_page(frag0)) && + (!NET_IP_ALIGN || !(skb_frag_off(frag0) & 3))) { NAPI_GRO_CB(skb)->frag0 = skb_frag_address(frag0); NAPI_GRO_CB(skb)->frag0_len = min_t(unsigned int, skb_frag_size(frag0),