Add the missing offsets when copying frags in xdp_copy_frags_from_zc().
Fixes: 560d958c6c68 ("xsk: add generic XSk &xdp_buff -> skb conversion")
Signed-off-by: Bui Quang Minh <minhquangbui99@xxxxxxxxx>
---
net/core/xdp.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/net/core/xdp.c b/net/core/xdp.c
index f86eedad586a..a723dc301f94 100644
--- a/net/core/xdp.c
+++ b/net/core/xdp.c
@@ -697,7 +697,8 @@ static noinline bool xdp_copy_frags_from_zc(struct sk_buff *skb,
nr_frags = xinfo->nr_frags;
for (u32 i = 0; i < nr_frags; i++) {
- u32 len = skb_frag_size(&xinfo->frags[i]);
+ const skb_frag_t *frag = &xinfo->frags[i];
+ u32 len = skb_frag_size(frag);
u32 offset, truesize = len;
netmem_ref netmem;
@@ -707,8 +708,8 @@ static noinline bool xdp_copy_frags_from_zc(struct sk_buff *skb,
return false;
}
- memcpy(__netmem_address(netmem),
- __netmem_address(xinfo->frags[i].netmem),
+ memcpy(__netmem_address(netmem) + offset,
+ __netmem_address(frag->netmem) + skb_frag_off(frag),
LARGEST_ALIGN(len));
__skb_fill_netmem_desc_noacc(sinfo, i, netmem, offset, len);
--
2.43.0
