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From:   Jakob Koschel <jakobkoschel@gmail.com>
To:     "David S. Miller" <davem@davemloft.net>
Cc:     Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
        Andrew Lunn <andrew@lunn.ch>,
        Vivien Didelot <vivien.didelot@gmail.com>,
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        Lars Povlsen <lars.povlsen@microchip.com>,
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        John Fastabend <john.fastabend@gmail.com>,
        KP Singh <kpsingh@kernel.org>,
        Casper Andersson <casper.casan@gmail.com>,
        Jakob Koschel <jakobkoschel@gmail.com>,
        Arnd Bergmann <arnd@arndb.de>, Jason Gunthorpe <jgg@ziepe.ca>,
        Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
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        Eric Dumazet <edumazet@google.com>,
        Xu Wang <vulab@iscas.ac.cn>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linuxppc-dev@lists.ozlabs.org, bpf@vger.kernel.org,
        Mike Rapoport <rppt@kernel.org>,
        "Brian Johannesmeyer" <bjohannesmeyer@gmail.com>,
        Cristiano Giuffrida <c.giuffrida@vu.nl>,
        "Bos, H.J." <h.j.bos@vu.nl>
Subject: [PATCH net-next v5 10/18] qed: Replace usage of found with dedicated list iterator variable
Date:   Wed, 27 Apr 2022 18:06:27 +0200
Message-Id: <20220427160635.420492-11-jakobkoschel@gmail.com>
In-Reply-To: <20220427160635.420492-1-jakobkoschel@gmail.com>
References: <20220427160635.420492-1-jakobkoschel@gmail.com>
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To move the list iterator variable into the list_for_each_entry_*()
macro in the future it should be avoided to use the list iterator
variable after the loop body.

To *never* use the list iterator variable after the loop it was
concluded to use a separate iterator variable instead of a
found boolean [1].

This removes the need to use a found variable and simply checking if
the variable was set, can determine if the break/goto was hit.

Link: https://lore.kernel.org/all/CAHk-=wgRr_D8CB-D9Kg-c=EHreAsk5SqXPwr9Y7k9sA6cWXJ6w@mail.gmail.com/ [1]
Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com>
---
 drivers/net/ethernet/qlogic/qed/qed_iwarp.c | 26 ++++++++++-----------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
index 1d1d4caad680..198c9321bf51 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_iwarp.c
@@ -1630,38 +1630,36 @@ static struct qed_iwarp_listener *
 qed_iwarp_get_listener(struct qed_hwfn *p_hwfn,
 		       struct qed_iwarp_cm_info *cm_info)
 {
-	struct qed_iwarp_listener *listener = NULL;
+	struct qed_iwarp_listener *listener = NULL, *iter;
 	static const u32 ip_zero[4] = { 0, 0, 0, 0 };
-	bool found = false;
 
-	list_for_each_entry(listener,
+	list_for_each_entry(iter,
 			    &p_hwfn->p_rdma_info->iwarp.listen_list,
 			    list_entry) {
-		if (listener->port == cm_info->local_port) {
-			if (!memcmp(listener->ip_addr,
+		if (iter->port == cm_info->local_port) {
+			if (!memcmp(iter->ip_addr,
 				    ip_zero, sizeof(ip_zero))) {
-				found = true;
+				listener = iter;
 				break;
 			}
 
-			if (!memcmp(listener->ip_addr,
+			if (!memcmp(iter->ip_addr,
 				    cm_info->local_ip,
 				    sizeof(cm_info->local_ip)) &&
-			    (listener->vlan == cm_info->vlan)) {
-				found = true;
+			    iter->vlan == cm_info->vlan) {
+				listener = iter;
 				break;
 			}
 		}
 	}
 
-	if (found) {
+	if (listener)
 		DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "listener found = %p\n",
 			   listener);
-		return listener;
-	}
+	else
+		DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "listener not found\n");
 
-	DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "listener not found\n");
-	return NULL;
+	return listener;
 }
 
 static int
-- 
2.25.1