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net: add kdoc for napi_consume_skb()

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Looks like AI reviewers miss that napi_consume_skb() must have
a real budget passed to it. Let's see if adding a real kdoc will
help them figure this out.

Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Link: https://patch.msgid.link/20260119224140.1362729-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski
2026-01-19 14:41:40 -08:00
parent 833dcd75d5
commit cd18e8ac03
1 changed files with 12 additions and 1 deletions
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net/core/skbuff.c
+12 -1
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@@ -1507,9 +1507,20 @@ void napi_skb_free_stolen_head(struct sk_buff *skb)
napi_skb_cache_put(skb);
}
/**
* napi_consume_skb() - consume skb in NAPI context, try to feed skb cache
* @skb: buffer to free
* @budget: NAPI budget
*
* Non-zero @budget must come from the @budget argument passed by the core
* to a NAPI poll function. Note that core may pass budget of 0 to NAPI poll
* for example when polling for netpoll / netconsole.
*
* Passing @budget of 0 is safe from any context, it turns this function
* into dev_consume_skb_any().
*/
void napi_consume_skb(struct sk_buff *skb, int budget)
{
/* Zero budget indicate non-NAPI context called us, like netpoll */
if (unlikely(!budget || !skb)) {
dev_consume_skb_any(skb);
return;