linux-kernel - [PATCH net-next v2] tipc: Remove redundant call to TLV

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Message-ID: <20231117003704.1738094-1-syoshida@redhat.com>
Date:   Fri, 17 Nov 2023 09:37:04 +0900
From:   Shigeru Yoshida <syoshida@...hat.com>
To:     jmaloy@...hat.com, ying.xue@...driver.com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com
Cc:     netdev@...r.kernel.org, tipc-discussion@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, Shigeru Yoshida <syoshida@...hat.com>
Subject: [PATCH net-next v2] tipc: Remove redundant call to TLV_SPACE()

The purpose of TLV_SPACE() is to add the TLV descriptor size to the size of
the TLV value passed as argument and align the resulting size to
TLV_ALIGNTO.

tipc_tlv_alloc() calls TLV_SPACE() on its argument. In other words,
tipc_tlv_alloc() takes its argument as the size of the TLV value. So the
call to TLV_SPACE() in tipc_get_err_tlv() is redundant. Let's remove this
redundancy.

Acked-by: Paolo Abeni <pabeni@...hat.com>
Signed-off-by: Shigeru Yoshida <syoshida@...hat.com>
---
v1->v2:
- Re-submit to net-next
https://lore.kernel.org/all/20231114144336.1714364-1-syoshida@redhat.com/
---
 net/tipc/netlink_compat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c
index 5bc076f2fa74..db0365c9b8bd 100644
--- a/net/tipc/netlink_compat.c
+++ b/net/tipc/netlink_compat.c
@@ -167,7 +167,7 @@ static struct sk_buff *tipc_get_err_tlv(char *str)
 	int str_len = strlen(str) + 1;
 	struct sk_buff *buf;
 
-	buf = tipc_tlv_alloc(TLV_SPACE(str_len));
+	buf = tipc_tlv_alloc(str_len);
 	if (buf)
 		tipc_add_tlv(buf, TIPC_TLV_ERROR_STRING, str, str_len);
 
-- 
2.41.0