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From:   Serge Semin <fancer.lancer@gmail.com>
To:     Andrew Lunn <andrew@lunn.ch>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        Russell King <linux@armlinux.org.uk>,
        Alexandre Torgue <alexandre.torgue@foss.st.com>,
        Jose Abreu <joabreu@synopsys.com>,
        Jose Abreu <Jose.Abreu@synopsys.com>,
        Maxime Chevallier <maxime.chevallier@bootlin.com>,
        Tomer Maimon <tmaimon77@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>
Cc:     Serge Semin <fancer.lancer@gmail.com>, openbmc@lists.ozlabs.org,
        netdev@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH net-next 01/16] net: pcs: xpcs: Drop sentinel entry from 2500basex ifaces list
Date:   Tue,  5 Dec 2023 13:35:22 +0300
Message-ID: <20231205103559.9605-2-fancer.lancer@gmail.com>
In-Reply-To: <20231205103559.9605-1-fancer.lancer@gmail.com>
References: <20231205103559.9605-1-fancer.lancer@gmail.com>
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There are currently two methods (xpcs_find_compat() and
xpcs_get_interfaces()) defined in the driver which loop over the available
interfaces. All of them rely on the xpcs_compat.num_interfaces field value
to get the number of interfaces. That field is initialized with the
ARRAY_SIZE(xpcs_*_interfaces) macro function call. Thus the interface
arrays are supposed to be filled with actual interface IDs and there is no
need in the dummy terminating ID placed at the end of the arrays. Let's
drop the redundant PHY_INTERFACE_MODE_MAX entry from the
xpcs_2500basex_interfaces list and the redundant
PHY_INTERFACE_MODE_MAX-based conditional statement from the
xpcs_get_interfaces() method then.

Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
---
 drivers/net/pcs/pcs-xpcs.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/pcs/pcs-xpcs.c b/drivers/net/pcs/pcs-xpcs.c
index 31f0beba638a..dc7c374da495 100644
--- a/drivers/net/pcs/pcs-xpcs.c
+++ b/drivers/net/pcs/pcs-xpcs.c
@@ -130,7 +130,6 @@ static const phy_interface_t xpcs_1000basex_interfaces[] = {
 
 static const phy_interface_t xpcs_2500basex_interfaces[] = {
 	PHY_INTERFACE_MODE_2500BASEX,
-	PHY_INTERFACE_MODE_MAX,
 };
 
 enum {
@@ -636,8 +635,7 @@ void xpcs_get_interfaces(struct dw_xpcs *xpcs, unsigned long *interfaces)
 		const struct xpcs_compat *compat = &xpcs->id->compat[i];
 
 		for (j = 0; j < compat->num_interfaces; j++)
-			if (compat->interface[j] < PHY_INTERFACE_MODE_MAX)
-				__set_bit(compat->interface[j], interfaces);
+			__set_bit(compat->interface[j], interfaces);
 	}
 }
 EXPORT_SYMBOL_GPL(xpcs_get_interfaces);
-- 
2.42.1