[PATCH net-next] net: inline napi_skb_cache_get()

[Eric Dumazet <edumazet@google.com>]

clang is inlining it already, gcc (14.2) does not.

Small space cost (215 bytes on x86_64) but faster sk_buff allocations.

$ scripts/bloat-o-meter -t net/core/skbuff.gcc.before.o net/core/skbuff.gcc.after.o
add/remove: 0/1 grow/shrink: 4/1 up/down: 359/-144 (215)
Function                                     old     new   delta
__alloc_skb                                  471     611    +140
napi_build_skb                               245     363    +118
napi_alloc_skb                               331     416     +85
skb_copy_ubufs                              1869    1885     +16
skb_shift                                   1445    1413     -32
napi_skb_cache_get                           112       -    -112
Total: Before=59941, After=60156, chg +0.36%

Signed-off-by: Eric Dumazet <edumazet@google.com>
---
 net/core/skbuff.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index a56133902c0d9c47b45a4a19b228b151456e5051..9e94590914b7f9b1cc748262c73eb5aa4f9d2df8 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -280,7 +280,7 @@ EXPORT_SYMBOL(__netdev_alloc_frag_align);
  */
 static u32 skbuff_cache_size __read_mostly;
 
-static struct sk_buff *napi_skb_cache_get(bool alloc)
+static inline struct sk_buff *napi_skb_cache_get(bool alloc)
 {
 	struct napi_alloc_cache *nc = this_cpu_ptr(&napi_alloc_cache);
 	struct sk_buff *skb;
-- 
2.52.0.457.g6b5491de43-goog