required_headroom 129 drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c int required_headroom, additional_header_len; required_headroom 133 drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c required_headroom = sizeof(struct rmnet_map_header); required_headroom 137 drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c required_headroom += additional_header_len; required_headroom 140 drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c if (skb_headroom(skb) < required_headroom) { required_headroom 141 drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c if (pskb_expand_head(skb, required_headroom, 0, GFP_ATOMIC))