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Date: Wed, 27 Dec 2023 21:11:54 +0200
From: Vladimir Oltean <olteanv@gmail.com>
To: =?utf-8?B?QXLEsW7DpyDDnE5BTA==?= <arinc.unal@arinc9.com>
Cc: Daniel Golle <daniel@makrotopia.org>,
	Landen Chao <Landen.Chao@mediatek.com>,
	DENG Qingfang <dqfext@gmail.com>,
	Sean Wang <sean.wang@mediatek.com>, Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>,
	David Bauer <mail@david-bauer.net>, mithat.guner@xeront.com,
	erkin.bozoglu@xeront.com, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org
Subject: Re: [PATCH net-next] net: dsa: mt7530: register OF node for internal
 MDIO bus
Message-ID: <20231227191154.6jkqdlqdxciidpfw@skbuf>
References: <20231220173539.59071-1-arinc.unal@arinc9.com>
 <20231220173539.59071-1-arinc.unal@arinc9.com>
 <20231221151607.ujobhh4aet4obxdz@skbuf>
 <6600c6b1-2230-4963-940c-8b95a01750fd@arinc9.com>
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In-Reply-To: <6600c6b1-2230-4963-940c-8b95a01750fd@arinc9.com>

On Sun, Dec 24, 2023 at 10:37:12AM +0300, Arınç ÜNAL wrote:
> If the MDIO bus of the switch is defined on the devicetree, the
> (!ds->user_mii_bus && ds->ops->phy_read) check in dsa_switch_setup will be
> true so the MDIO bus will be attempted to be registered again, resulting in
> a kernel panic.

Where does mt7530 provide ds->ops->phy_read() in upstream?