linux-kernel - [PATCH] net: ksz884x: remove unused change variable

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Date:   Wed, 29 Mar 2023 08:59:29 -0400
From:   Tom Rix <trix@...hat.com>
To:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, nathan@...nel.org, ndesaulniers@...gle.com,
        petrm@...dia.com, leon@...nel.org, shayagr@...zon.com,
        wsa+renesas@...g-engineering.com, yangyingliang@...wei.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev, Tom Rix <trix@...hat.com>
Subject: [PATCH] net: ksz884x: remove unused change variable

clang with W=1 reports
drivers/net/ethernet/micrel/ksz884x.c:3216:6: error: variable
  'change' set but not used [-Werror,-Wunused-but-set-variable]
        int change = 0;
            ^
This variable is not used so remove it.

Signed-off-by: Tom Rix <trix@...hat.com>
---
 drivers/net/ethernet/micrel/ksz884x.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c
index e6acd1e7b263..f78e8ead8c36 100644
--- a/drivers/net/ethernet/micrel/ksz884x.c
+++ b/drivers/net/ethernet/micrel/ksz884x.c
@@ -3213,7 +3213,6 @@ static void port_get_link_speed(struct ksz_port *port)
 	u8 remote;
 	int i;
 	int p;
-	int change = 0;
 
 	interrupt = hw_block_intr(hw);
 
@@ -3260,17 +3259,14 @@ static void port_get_link_speed(struct ksz_port *port)
 					port_cfg_back_pressure(hw, p,
 						(1 == info->duplex));
 				}
-				change |= 1 << i;
 				port_cfg_change(hw, port, info, status);
 			}
 			info->state = media_connected;
 		} else {
-			if (media_disconnected != info->state) {
-				change |= 1 << i;
-
-				/* Indicate the link just goes down. */
+			/* Indicate the link just goes down. */
+			if (media_disconnected != info->state)
 				hw->port_mib[p].link_down = 1;
-			}
+
 			info->state = media_disconnected;
 		}
 		hw->port_mib[p].state = (u8) info->state;
-- 
2.27.0