linux-kernel - [PATCH net-next 1/5] net: inline sock_alloc_send

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Date:   Thu, 28 Apr 2022 11:58:44 +0100
From:   Pavel Begunkov <asml.silence@...il.com>
To:     netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     David Ahern <dsahern@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        linux-kernel@...r.kernel.org,
        Pavel Begunkov <asml.silence@...il.com>
Subject: [PATCH net-next 1/5] net: inline sock_alloc_send_skb

sock_alloc_send_skb() is simple and just proxying to another function,
so we can inline it and cut associated overhead.

Signed-off-by: Pavel Begunkov <asml.silence@...il.com>
---
 include/net/sock.h | 10 ++++++++--
 net/core/sock.c    |  7 -------
 2 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index a01d6c421aa2..df2e826f67ee 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1824,11 +1824,17 @@ int sock_getsockopt(struct socket *sock, int level, int op,
 		    char __user *optval, int __user *optlen);
 int sock_gettstamp(struct socket *sock, void __user *userstamp,
 		   bool timeval, bool time32);
-struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size,
-				    int noblock, int *errcode);
 struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len,
 				     unsigned long data_len, int noblock,
 				     int *errcode, int max_page_order);
+
+static inline struct sk_buff *sock_alloc_send_skb(struct sock *sk,
+						  unsigned long size,
+						  int noblock, int *errcode)
+{
+	return sock_alloc_send_pskb(sk, size, 0, noblock, errcode, 0);
+}
+
 void *sock_kmalloc(struct sock *sk, int size, gfp_t priority);
 void sock_kfree_s(struct sock *sk, void *mem, int size);
 void sock_kzfree_s(struct sock *sk, void *mem, int size);
diff --git a/net/core/sock.c b/net/core/sock.c
index 29abec3eabd8..fbca35d3749a 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2631,13 +2631,6 @@ struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len,
 }
 EXPORT_SYMBOL(sock_alloc_send_pskb);
 
-struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size,
-				    int noblock, int *errcode)
-{
-	return sock_alloc_send_pskb(sk, size, 0, noblock, errcode, 0);
-}
-EXPORT_SYMBOL(sock_alloc_send_skb);
-
 int __sock_cmsg_send(struct sock *sk, struct msghdr *msg, struct cmsghdr *cmsg,
 		     struct sockcm_cookie *sockc)
 {
-- 
2.36.0