It's annoying for the list_add to be outside net_devmem_bind_dmabuf, but the list_del is in net_devmem_unbind_dmabuf. Make it consistent by having both the list_add/del be inside the net_devmem_[un]bind_dmabuf.
Cc: ap420073@gmail.com Signed-off-by: Mina Almasry almasrymina@google.com Tested-by: Taehee Yoo ap420073@gmail.com
--- net/core/devmem.c | 5 ++++- net/core/devmem.h | 5 ++++- net/core/netdev-genl.c | 8 ++------ 3 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/net/core/devmem.c b/net/core/devmem.c index 0dba26baae18..b3a62ca0df65 100644 --- a/net/core/devmem.c +++ b/net/core/devmem.c @@ -178,7 +178,8 @@ int net_devmem_bind_dmabuf_to_queue(struct net_device *dev, u32 rxq_idx, struct net_devmem_dmabuf_binding * net_devmem_bind_dmabuf(struct net_device *dev, enum dma_data_direction direction, - unsigned int dmabuf_fd, struct netlink_ext_ack *extack) + unsigned int dmabuf_fd, struct netdev_nl_sock *priv, + struct netlink_ext_ack *extack) { struct net_devmem_dmabuf_binding *binding; static u32 id_alloc_next; @@ -299,6 +300,8 @@ net_devmem_bind_dmabuf(struct net_device *dev, if (err < 0) goto err_free_chunks;
+ list_add(&binding->list, &priv->bindings); + return binding;
err_free_chunks: diff --git a/net/core/devmem.h b/net/core/devmem.h index 58d8d3c1b945..e7ba77050b8f 100644 --- a/net/core/devmem.h +++ b/net/core/devmem.h @@ -11,6 +11,7 @@ #define _NET_DEVMEM_H
#include <net/netmem.h> +#include <net/netdev_netlink.h>
struct netlink_ext_ack;
@@ -82,7 +83,8 @@ void __net_devmem_dmabuf_binding_free(struct work_struct *wq); struct net_devmem_dmabuf_binding * net_devmem_bind_dmabuf(struct net_device *dev, enum dma_data_direction direction, - unsigned int dmabuf_fd, struct netlink_ext_ack *extack); + unsigned int dmabuf_fd, struct netdev_nl_sock *priv, + struct netlink_ext_ack *extack); struct net_devmem_dmabuf_binding *net_devmem_lookup_dmabuf(u32 id); void net_devmem_unbind_dmabuf(struct net_devmem_dmabuf_binding *binding); int net_devmem_bind_dmabuf_to_queue(struct net_device *dev, u32 rxq_idx, @@ -170,6 +172,7 @@ static inline void __net_devmem_dmabuf_binding_free(struct work_struct *wq) static inline struct net_devmem_dmabuf_binding * net_devmem_bind_dmabuf(struct net_device *dev, unsigned int dmabuf_fd, enum dma_data_direction direction, + struct netdev_nl_sock *priv, struct netlink_ext_ack *extack) { return ERR_PTR(-EOPNOTSUPP); diff --git a/net/core/netdev-genl.c b/net/core/netdev-genl.c index 762570dcda61..2afa7b2141aa 100644 --- a/net/core/netdev-genl.c +++ b/net/core/netdev-genl.c @@ -908,7 +908,7 @@ int netdev_nl_bind_rx_doit(struct sk_buff *skb, struct genl_info *info) }
binding = net_devmem_bind_dmabuf(netdev, DMA_FROM_DEVICE, dmabuf_fd, - info->extack); + priv, info->extack); if (IS_ERR(binding)) { err = PTR_ERR(binding); goto err_unlock; @@ -943,8 +943,6 @@ int netdev_nl_bind_rx_doit(struct sk_buff *skb, struct genl_info *info) goto err_unbind; }
- list_add(&binding->list, &priv->bindings); - nla_put_u32(rsp, NETDEV_A_DMABUF_ID, binding->id); genlmsg_end(rsp, hdr);
@@ -1020,15 +1018,13 @@ int netdev_nl_bind_tx_doit(struct sk_buff *skb, struct genl_info *info) goto err_unlock_netdev; }
- binding = net_devmem_bind_dmabuf(netdev, DMA_TO_DEVICE, dmabuf_fd, + binding = net_devmem_bind_dmabuf(netdev, DMA_TO_DEVICE, dmabuf_fd, priv, info->extack); if (IS_ERR(binding)) { err = PTR_ERR(binding); goto err_unlock_netdev; }
- list_add(&binding->list, &priv->bindings); - nla_put_u32(rsp, NETDEV_A_DMABUF_ID, binding->id); genlmsg_end(rsp, hdr);