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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>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Vladimir Oltean <olteanv@gmail.com>,
        Lars Povlsen <lars.povlsen@microchip.com>,
        Steen Hegelund <Steen.Hegelund@microchip.com>,
        UNGLinuxDriver@microchip.com, Ariel Elior <aelior@marvell.com>,
        Manish Chopra <manishc@marvell.com>,
        Edward Cree <ecree.xilinx@gmail.com>,
        Martin Habets <habetsm.xilinx@gmail.com>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Jiri Pirko <jiri@resnulli.us>,
        Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        Andrii Nakryiko <andrii@kernel.org>,
        Martin KaFai Lau <kafai@fb.com>,
        Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>,
        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>,
        Colin Ian King <colin.king@intel.com>,
        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 09/18] qed: Use dedicated list iterator variable
Date:   Wed, 27 Apr 2022 18:06:26 +0200
Message-Id: <20220427160635.420492-10-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 [1].

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_dev.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 672480c9d195..e920e7dcf66a 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -174,7 +174,7 @@ int qed_db_recovery_add(struct qed_dev *cdev,
 int qed_db_recovery_del(struct qed_dev *cdev,
 			void __iomem *db_addr, void *db_data)
 {
-	struct qed_db_recovery_entry *db_entry = NULL;
+	struct qed_db_recovery_entry *db_entry = NULL, *iter;
 	struct qed_hwfn *p_hwfn;
 	int rc = -EINVAL;
 
@@ -190,12 +190,13 @@ int qed_db_recovery_del(struct qed_dev *cdev,
 
 	/* Protect the list */
 	spin_lock_bh(&p_hwfn->db_recovery_info.lock);
-	list_for_each_entry(db_entry,
+	list_for_each_entry(iter,
 			    &p_hwfn->db_recovery_info.list, list_entry) {
 		/* search according to db_data addr since db_addr is not unique (roce) */
-		if (db_entry->db_data == db_data) {
-			qed_db_recovery_dp_entry(p_hwfn, db_entry, "Deleting");
-			list_del(&db_entry->list_entry);
+		if (iter->db_data == db_data) {
+			qed_db_recovery_dp_entry(p_hwfn, iter, "Deleting");
+			list_del(&iter->list_entry);
+			db_entry = iter;
 			rc = 0;
 			break;
 		}
-- 
2.25.1