diff --git a/net/core/devmem.c b/net/core/devmem.c index e5941f8e29df99..7a0ce705a70332 100644 --- a/net/core/devmem.c +++ b/net/core/devmem.c @@ -55,8 +55,10 @@ static dma_addr_t net_devmem_get_dma_addr(const struct net_iov *niov) ((dma_addr_t)net_iov_idx(niov) << PAGE_SHIFT); } -void __net_devmem_dmabuf_binding_free(struct net_devmem_dmabuf_binding *binding) +void __net_devmem_dmabuf_binding_free(struct work_struct *wq) { + struct net_devmem_dmabuf_binding *binding = container_of(wq, typeof(*binding), unbind_w); + size_t size, avail; gen_pool_for_each_chunk(binding->chunk_pool, diff --git a/net/core/devmem.h b/net/core/devmem.h index a8b79c0e01b373..861150349825cf 100644 --- a/net/core/devmem.h +++ b/net/core/devmem.h @@ -54,6 +54,8 @@ struct net_devmem_dmabuf_binding { * net_iovs in the TX path. */ struct net_iov **tx_vec; + + struct work_struct unbind_w; }; #if defined(CONFIG_NET_DEVMEM) @@ -70,7 +72,7 @@ struct dmabuf_genpool_chunk_owner { dma_addr_t base_dma_addr; }; -void __net_devmem_dmabuf_binding_free(struct net_devmem_dmabuf_binding *binding); +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, @@ -121,7 +123,8 @@ net_devmem_dmabuf_binding_put(struct net_devmem_dmabuf_binding *binding) if (!refcount_dec_and_test(&binding->ref)) return; - __net_devmem_dmabuf_binding_free(binding); + INIT_WORK(&binding->unbind_w, __net_devmem_dmabuf_binding_free); + schedule_work(&binding->unbind_w); } void net_devmem_get_net_iov(struct net_iov *niov); @@ -154,8 +157,7 @@ static inline void net_devmem_put_net_iov(struct net_iov *niov) { } -static inline void -__net_devmem_dmabuf_binding_free(struct net_devmem_dmabuf_binding *binding) +static inline void __net_devmem_dmabuf_binding_free(struct work_struct *wq) { }