linux-kernel - [PATCH net v2] net: appletalk: Drop aarp_send_probe

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Message-ID: <tencent_EE9140075A979E58EBB03FA7E7DEF6831F07@qq.com>
Date: Mon, 13 Jan 2025 09:44:51 +0000
From: Yeking@...54.com
To: kuba@...nel.org
Cc: Yeking@...54.com,
	arnd@...db.de,
	davem@...emloft.net,
	edumazet@...gle.com,
	gregkh@...uxfoundation.org,
	horms@...nel.org,
	linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org,
	pabeni@...hat.com,
	prarit@...hat.com,
	vkuznets@...hat.com
Subject: [PATCH net v2] net: appletalk: Drop aarp_send_probe_phase1()

From: 谢致邦 (XIE Zhibang) <Yeking@...54.com>

aarp_send_probe_phase1() used to work by calling ndo_do_ioctl of
appletalk drivers such as ltpc, cops, or ipddp, but these drivers have
been removed since the following commits:
commit dbecb011eb78 ("appletalk: use ndo_siocdevprivate")
commit 03dcb90dbf62 ("net: appletalk: remove Apple/Farallon LocalTalk PC
support")
commit 00f3696f7555 ("net: appletalk: remove cops support")
commit 1dab47139e61 ("appletalk: remove ipddp driver")

Thus aarp_send_probe_phase1() no longer works, so drop it. (found by
code inspection)

Signed-off-by: 谢致邦 (XIE Zhibang) <Yeking@...54.com>
---
V1 -> V2: Update commit message

 net/appletalk/aarp.c | 32 ++------------------------------
 1 file changed, 2 insertions(+), 30 deletions(-)

diff --git a/net/appletalk/aarp.c b/net/appletalk/aarp.c
index 9fa0b246902b..af6a737e4dd3 100644
--- a/net/appletalk/aarp.c
+++ b/net/appletalk/aarp.c
@@ -432,38 +432,10 @@ static struct atalk_addr *__aarp_proxy_find(struct net_device *dev,
 	return a ? sa : NULL;
 }
 
-/*
- * Probe a Phase 1 device or a device that requires its Net:Node to
- * be set via an ioctl.
- */
-static void aarp_send_probe_phase1(struct atalk_iface *iface)
-{
-	struct ifreq atreq;
-	struct sockaddr_at *sa = (struct sockaddr_at *)&atreq.ifr_addr;
-	const struct net_device_ops *ops = iface->dev->netdev_ops;
-
-	sa->sat_addr.s_node = iface->address.s_node;
-	sa->sat_addr.s_net = ntohs(iface->address.s_net);
-
-	/* We pass the Net:Node to the drivers/cards by a Device ioctl. */
-	if (!(ops->ndo_do_ioctl(iface->dev, &atreq, SIOCSIFADDR))) {
-		ops->ndo_do_ioctl(iface->dev, &atreq, SIOCGIFADDR);
-		if (iface->address.s_net != htons(sa->sat_addr.s_net) ||
-		    iface->address.s_node != sa->sat_addr.s_node)
-			iface->status |= ATIF_PROBE_FAIL;
-
-		iface->address.s_net  = htons(sa->sat_addr.s_net);
-		iface->address.s_node = sa->sat_addr.s_node;
-	}
-}
-
-
 void aarp_probe_network(struct atalk_iface *atif)
 {
-	if (atif->dev->type == ARPHRD_LOCALTLK ||
-	    atif->dev->type == ARPHRD_PPP)
-		aarp_send_probe_phase1(atif);
-	else {
+	if (atif->dev->type != ARPHRD_LOCALTLK &&
+	    atif->dev->type != ARPHRD_PPP) {
 		unsigned int count;
 
 		for (count = 0; count < AARP_RETRANSMIT_LIMIT; count++) {
-- 
2.43.0