linux-kernel - [PATCH net-next v1 1/1] net: stmmac: Fix mixed enum type warning

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Date:   Thu, 10 Jun 2021 16:53:54 +0800
From:   Wong Vee Khee <vee.khee.wong@...ux.intel.com>
To:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>
Cc:     Joakim Zhang <qiangqing.zhang@....com>, netdev@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next v1 1/1] net: stmmac: Fix mixed enum type warning

The commit 5a5586112b92 ("net: stmmac: support FPE link partner
hand-shaking procedure") introduced the following coverity warning:

  "Parse warning (PW.MIXED_ENUM_TYPE)"
  "1. mixed_enum_type: enumerated type mixed with another type"

This is due to both "lo_state" and "lp_sate" which their datatype are
enum stmmac_fpe_state type, and being assigned with "FPE_EVENT_UNKNOWN"
which is a macro-defined of 0. Fixed this by assigned both these
variables with the correct enum value.

Fixes: 5a5586112b92 ("net: stmmac: support FPE link partner hand-shaking procedure")
Signed-off-by: Wong Vee Khee <vee.khee.wong@...ux.intel.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 180f347b4c8e..db97cd4b871d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1021,8 +1021,8 @@ static void stmmac_fpe_link_state_handle(struct stmmac_priv *priv, bool is_up)
 	if (is_up && *hs_enable) {
 		stmmac_fpe_send_mpacket(priv, priv->ioaddr, MPACKET_VERIFY);
 	} else {
-		*lo_state = FPE_EVENT_UNKNOWN;
-		*lp_state = FPE_EVENT_UNKNOWN;
+		*lo_state = FPE_STATE_OFF;
+		*lp_state = FPE_STATE_OFF;
 	}
 }
 
-- 
2.25.1