linux-kernel - [PATCH] bnx2x: replace usage of found with dedicated list iterator variable

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Message-Id: <20220324070816.58599-1-jakobkoschel@gmail.com>
Date:   Thu, 24 Mar 2022 08:08:16 +0100
From:   Jakob Koschel <jakobkoschel@...il.com>
To:     Ariel Elior <aelior@...vell.com>
Cc:     Sudarsana Kalluru <skalluru@...vell.com>,
        Manish Chopra <manishc@...vell.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Mike Rapoport <rppt@...nel.org>,
        "Brian Johannesmeyer" <bjohannesmeyer@...il.com>,
        Cristiano Giuffrida <c.giuffrida@...nl>,
        "Bos, H.J." <h.j.bos@...nl>, Jakob Koschel <jakobkoschel@...il.com>
Subject: [PATCH] bnx2x: replace usage of found with dedicated list iterator variable

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/
Signed-off-by: Jakob Koschel <jakobkoschel@...il.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index c19b072f3a23..fe985ddb35db 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12971,20 +12971,19 @@ static int bnx2x_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
 
 static int bnx2x_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
 {
+	struct bnx2x_vlan_entry *vlan = NULL, *iter;
 	struct bnx2x *bp = netdev_priv(dev);
-	struct bnx2x_vlan_entry *vlan;
-	bool found = false;
 	int rc = 0;
 
 	DP(NETIF_MSG_IFUP, "Removing VLAN %d\n", vid);
 
-	list_for_each_entry(vlan, &bp->vlan_reg, link)
-		if (vlan->vid == vid) {
-			found = true;
+	list_for_each_entry(iter, &bp->vlan_reg, link)
+		if (iter->vid == vid) {
+			vlan = iter;
 			break;
 		}
 
-	if (!found) {
+	if (!vlan) {
 		BNX2X_ERR("Unable to kill VLAN %d - not found\n", vid);
 		return -EINVAL;
 	}

base-commit: f443e374ae131c168a065ea1748feac6b2e76613
-- 
2.25.1