linux-kernel - [PATCH v2 net-next 2/2] net: tipc: replace align() with ALIGN in msg.c

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Message-Id: <20210609103251.534270-3-dong.menglong@zte.com.cn>
Date:   Wed,  9 Jun 2021 18:32:51 +0800
From:   menglong8.dong@...il.com
To:     jmaloy@...hat.com
Cc:     ying.xue@...driver.com, davem@...emloft.net, kuba@...nel.org,
        netdev@...r.kernel.org, tipc-discussion@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org,
        Menglong Dong <dong.menglong@....com.cn>
Subject: [PATCH v2 net-next 2/2] net: tipc: replace align() with ALIGN in msg.c

From: Menglong Dong <dong.menglong@....com.cn>

The function align() which is defined in msg.c is redundant, replace it
with ALIGN() and introduce a BUF_ALIGN().

Signed-off-by: Menglong Dong <dong.menglong@....com.cn>
---
 net/tipc/msg.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index a5c030ca7065..19a7d8eb8abb 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -49,6 +49,7 @@
 #define BUF_HEADROOM (LL_MAX_HEADER + 48)
 #define BUF_TAILROOM 0
 #endif
+#define BUF_ALIGN(x) ALIGN(x, 4)
 #define FB_MTU (PAGE_SIZE - \
 		SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) - \
 		SKB_DATA_ALIGN(BUF_HEADROOM + BUF_TAILROOM) \
@@ -56,11 +57,6 @@
 
 const int fb_mtu = FB_MTU;
 
-static unsigned int align(unsigned int i)
-{
-	return (i + 3) & ~3u;
-}
-
 /**
  * tipc_buf_acquire - creates a TIPC message buffer
  * @size: message size (including TIPC header)
@@ -489,10 +485,10 @@ static bool tipc_msg_bundle(struct sk_buff *bskb, struct tipc_msg *msg,
 	struct tipc_msg *bmsg = buf_msg(bskb);
 	u32 msz, bsz, offset, pad;
 
-	msz = msg_size(msg);
-	bsz = msg_size(bmsg);
-	offset = align(bsz);
-	pad = offset - bsz;
+	msz	= msg_size(msg);
+	bsz	= msg_size(bmsg);
+	offset	= BUF_ALIGN(bsz);
+	pad	= offset - bsz;
 
 	if (unlikely(skb_tailroom(bskb) < (pad + msz)))
 		return false;
@@ -548,7 +544,7 @@ bool tipc_msg_try_bundle(struct sk_buff *tskb, struct sk_buff **skb, u32 mss,
 
 	/* Make a new bundle of the two messages if possible */
 	tsz = msg_size(buf_msg(tskb));
-	if (unlikely(mss < align(INT_H_SIZE + tsz) + msg_size(msg)))
+	if (unlikely(mss < BUF_ALIGN(INT_H_SIZE + tsz) + msg_size(msg)))
 		return true;
 	if (unlikely(pskb_expand_head(tskb, INT_H_SIZE, mss - tsz - INT_H_SIZE,
 				      GFP_ATOMIC)))
@@ -607,7 +603,7 @@ bool tipc_msg_extract(struct sk_buff *skb, struct sk_buff **iskb, int *pos)
 	if (unlikely(!tipc_msg_validate(iskb)))
 		goto none;
 
-	*pos += align(imsz);
+	*pos += BUF_ALIGN(imsz);
 	return true;
 none:
 	kfree_skb(skb);
-- 
2.32.0