linux-kernel - [PATCH net-next v2 8/9] net: core: export skb_defer_free

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Message-ID: <20251125200041.1565663-9-jon@nutanix.com>
Date: Tue, 25 Nov 2025 13:00:35 -0700
From: Jon Kohler <jon@...anix.com>
To: netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>,
        Stanislav Fomichev <sdf@...ichev.me>,
        Kuniyuki Iwashima <kuniyu@...gle.com>,
        Ahmed Zaki <ahmed.zaki@...el.com>,
        Samiullah Khawaja <skhawaja@...gle.com>,
        Alexander Lobakin <aleksander.lobakin@...el.com>,
        linux-kernel@...r.kernel.org (open list)
Cc: Jon Kohler <jon@...anix.com>
Subject: [PATCH net-next v2 8/9] net: core: export skb_defer_free_flush

Export skb_defer_free_flush so that it can be invoked in other modules,
which is helpful in situations where processing the deferred backlog
at specific cache refill points may be preferred.

Signed-off-by: Jon Kohler <jon@...anix.com>
---
 include/linux/skbuff.h | 1 +
 net/core/dev.c         | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index ff90281ddf90..daa2d7480fbd 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1365,6 +1365,7 @@ struct sk_buff *build_skb(void *data, unsigned int frag_size);
 struct sk_buff *build_skb_around(struct sk_buff *skb,
 				 void *data, unsigned int frag_size);
 void skb_attempt_defer_free(struct sk_buff *skb);
+void skb_defer_free_flush(void);
 
 u32 napi_skb_cache_get_bulk(void **skbs, u32 n);
 struct sk_buff *napi_build_skb(void *data, unsigned int frag_size);
diff --git a/net/core/dev.c b/net/core/dev.c
index 9094c0fb8c68..c4f535be7b6d 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6774,7 +6774,7 @@ bool napi_complete_done(struct napi_struct *n, int work_done)
 }
 EXPORT_SYMBOL(napi_complete_done);
 
-static void skb_defer_free_flush(void)
+void skb_defer_free_flush(void)
 {
 	struct llist_node *free_list;
 	struct sk_buff *skb, *next;
@@ -6795,6 +6795,7 @@ static void skb_defer_free_flush(void)
 		}
 	}
 }
+EXPORT_SYMBOL_GPL(skb_defer_free_flush);
 
 #if defined(CONFIG_NET_RX_BUSY_POLL)
 
-- 
2.43.0