netpoll: export refill_skbs(), refill_skbs_work_handler(), skb_pool_flush()

These three helpers manage the per-netpoll fallback skb pool. They
are file-static today because all of their callers live in
net/core/netpoll.c. Subsequent patches relocate the pool's owner
from struct netpoll to the only consumer that actually uses it
(netconsole), and that work needs netconsole to drive the helpers
directly while the function bodies still live here.

Drop static, add prototypes in <linux/netpoll.h>, and
EXPORT_SYMBOL_GPL() each. No behaviour change.

The exports are transitional. Each helper is moved into
drivers/net/netconsole.c later in this series, and at that point
its EXPORT_SYMBOL_GPL() and prototype are dropped. By the end of
the series no symbol introduced here remains exported.

The goal of this patch is to make the subsequente patches easy to
review.

Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260710-netconsole_move_more-v3-2-6f63f76b28bc@debian.org
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 88f7daa8560e..a7b96e179220 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -90,6 +90,9 @@ void netpoll_cleanup(struct netpoll *np);
 void do_netpoll_cleanup(struct netpoll *np);
 netdev_tx_t netpoll_send_skb(struct netpoll *np, struct sk_buff *skb);
 void netpoll_zap_completion_queue(void);
+void refill_skbs(struct netpoll *np);
+void refill_skbs_work_handler(struct work_struct *work);
+void skb_pool_flush(struct netpoll *np);
 
 #ifdef CONFIG_NETPOLL
 static inline void *netpoll_poll_lock(struct napi_struct *napi)