linux-kernel - [PATCH 28/30] net: fddi: skfp: cfm: Remove set but unused variable 'oldstate'

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Date:   Fri, 14 Aug 2020 12:39:31 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     linux-kernel@...r.kernel.org, Lee Jones <lee.jones@...aro.org>,
        netdev@...r.kernel.org
Subject: [PATCH 28/30] net: fddi: skfp: cfm: Remove set but unused variable 'oldstate'

While we're at it, remove some code which has never been invoked.

Keep the comment though, as it seems potentially half useful.

Fixes the following W=1 kernel build warning(s):

 drivers/net/fddi/skfp/cfm.c: In function ‘cfm’:
 drivers/net/fddi/skfp/cfm.c:211:6: warning: variable ‘oldstate’ set but not used [-Wunused-but-set-variable]

Cc: "David S. Miller" <davem@...emloft.net>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/net/fddi/skfp/cfm.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/net/fddi/skfp/cfm.c b/drivers/net/fddi/skfp/cfm.c
index e9bf42996de83..668b1d7be6e23 100644
--- a/drivers/net/fddi/skfp/cfm.c
+++ b/drivers/net/fddi/skfp/cfm.c
@@ -208,7 +208,6 @@ void cfm(struct s_smc *smc, int event)
 {
 	int	state ;		/* remember last state */
 	int	cond ;
-	int	oldstate ;
 
 	/* We will do the following: */
 	/*  - compute the variable WC_Flag for every port (This is where */
@@ -222,7 +221,6 @@ void cfm(struct s_smc *smc, int event)
 	/*  - change the portstates */
 	cem_priv_state (smc, event);
 
-	oldstate = smc->mib.fddiSMTCF_State ;
 	do {
 		DB_CFM("CFM : state %s%s event %s",
 		       smc->mib.fddiSMTCF_State & AFLAG ? "ACTIONS " : "",
@@ -250,18 +248,11 @@ void cfm(struct s_smc *smc, int event)
 	if (cond != smc->mib.fddiSMTPeerWrapFlag)
 		smt_srf_event(smc,SMT_COND_SMT_PEER_WRAP,0,cond) ;
 
-#if	0
 	/*
-	 * Don't send ever MAC_PATH_CHANGE events. Our MAC is hard-wired
+	 * Don't ever send MAC_PATH_CHANGE events. Our MAC is hard-wired
 	 * to the primary path.
 	 */
-	/*
-	 * path change
-	 */
-	if (smc->mib.fddiSMTCF_State != oldstate) {
-		smt_srf_event(smc,SMT_EVENT_MAC_PATH_CHANGE,INDEX_MAC,0) ;
-	}
-#endif
+
 #endif	/* no SLIM_SMT */
 
 	/*
-- 
2.25.1