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From: David Gibson <david@gibson.dropbear.id.au>
To: Stefano Brivio <sbrivio@redhat.com>, passt-dev@passt.top
Cc: David Gibson <david@gibson.dropbear.id.au>
Subject: [PATCH 1/2] tcp: Remove redundant initialisation of iov[TCP_IOV_ETH].iov_base
Date: Thu, 12 Sep 2024 16:59:39 +1000	[thread overview]
Message-ID: <20240912065940.1738239-2-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20240912065940.1738239-1-david@gibson.dropbear.id.au>

This initialisation for IPv4 flags buffers is redundant with the very next
line which sets both iov_base and iov_len.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 tcp_buf.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tcp_buf.c b/tcp_buf.c
index c31e9f31..2e044b27 100644
--- a/tcp_buf.c
+++ b/tcp_buf.c
@@ -168,7 +168,6 @@ void tcp_sock4_iov_init(const struct ctx *c)
 		iov = tcp4_l2_flags_iov[i];
 
 		iov[TCP_IOV_TAP] = tap_hdr_iov(c, &tcp4_flags_tap_hdr[i]);
-		iov[TCP_IOV_ETH].iov_base = &tcp4_eth_src;
 		iov[TCP_IOV_ETH] = IOV_OF_LVALUE(tcp4_eth_src);
 		iov[TCP_IOV_IP] = IOV_OF_LVALUE(tcp4_flags_ip[i]);
 		iov[TCP_IOV_PAYLOAD].iov_base = &tcp4_flags[i];
-- 
@@ -168,7 +168,6 @@ void tcp_sock4_iov_init(const struct ctx *c)
 		iov = tcp4_l2_flags_iov[i];
 
 		iov[TCP_IOV_TAP] = tap_hdr_iov(c, &tcp4_flags_tap_hdr[i]);
-		iov[TCP_IOV_ETH].iov_base = &tcp4_eth_src;
 		iov[TCP_IOV_ETH] = IOV_OF_LVALUE(tcp4_eth_src);
 		iov[TCP_IOV_IP] = IOV_OF_LVALUE(tcp4_flags_ip[i]);
 		iov[TCP_IOV_PAYLOAD].iov_base = &tcp4_flags[i];
-- 
2.46.0


  reply	other threads:[~2024-09-12  6:59 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-12  6:59 [PATCH 0/2] Avoid overlapping mempcy() in DUP_ACK handling David Gibson
2024-09-12  6:59 ` David Gibson [this message]
2024-09-12  6:59 ` [PATCH 2/2] tcp: Avoid overlapping memcpy() " David Gibson
2024-09-12  7:54 ` [PATCH 0/2] Avoid overlapping mempcy() " Stefano Brivio

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