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From: "Wu. JackBB (GSM)" <JackBB_Wu@compal.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Loic Poulain <loic.poulain@oss.qualcomm.com>,
	Sergey Ryazanov <ryazanov.s.a@gmail.com>,
	Johannes Berg <johannes@sipsolutions.net>,
	"Andrew Lunn" <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	"Eric Dumazet" <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Wen-Zhi Huang <wen-zhi.huang@mediatek.com>,
	Shi-Wei Yeh <shi-wei.yeh@mediatek.com>,
	Minano Tseng <Minano.tseng@mediatek.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>,
	Simon Horman <horms@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
	Shuah Khan <skhan@linuxfoundation.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"linux-mediatek@lists.infradead.org"
	<linux-mediatek@lists.infradead.org>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>
Subject: RE: [External Mail] Re: [PATCH v3 2/7] net: wwan: t9xx: Add control plane transaction layer
Date: Thu, 2 Jul 2026 08:27:26 +0000	[thread overview]
Message-ID: <4ec081f8df234cc584702abc67213965@compal.com> (raw)
In-Reply-To: <92b1e341-31a1-4f60-80d5-ccf8f742a38a@lunn.ch>

Hi Andrew,

> > mtk_dev_alloc/mtk_dev_free are paired wrappers so the caller
> > doesn't need to know the underlying allocation mechanism.
> > The devm_kfree is still called inside mtk_dev_free.
>
> Two different issues here:
>
> 1) If you don't want to use devm_, don't use devm_ from the
> beginning. A patch should not change how a previous patch works, since
> you are wasting reviewer time reviewing code which you later change.
>
> 2) Do you understand what devm_ actually does? Since you use
> devm_free() i don't think you actually understand what devm_ is all
> about.

Thank you for the explanation. You are right.

we will remove the mtk_dev_alloc/mtk_dev_free wrappers and use
devm_kzalloc directly from the beginning.

We will also remove all unnecessary devm_kfree() calls from probe
error paths and remove paths, keeping them only where resources
are freed and re-allocated at runtime (e.g., CLDMA queue lifecycle
during modem reset cycles).

Thanks.

Jack Wu

  reply	other threads:[~2026-07-02  8:56 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-24 10:04 [PATCH v3 0/7] net: wwan: t9xx: Add MediaTek T9XX WWAN driver Jack Wu via B4 Relay
2026-06-24 10:04 ` [PATCH v3 1/7] net: wwan: t9xx: Add PCIe core Jack Wu via B4 Relay
2026-06-24 15:56   ` Andrew Lunn
2026-06-29  7:05     ` [External Mail] " Wu. JackBB (GSM)
2026-06-24 10:04 ` [PATCH v3 2/7] net: wwan: t9xx: Add control plane transaction layer Jack Wu via B4 Relay
2026-06-24 16:00   ` Andrew Lunn
2026-06-29  7:26     ` [External Mail] " Wu. JackBB (GSM)
2026-06-29 14:10       ` Andrew Lunn
2026-07-02  8:27         ` Wu. JackBB (GSM) [this message]
2026-07-02 13:17           ` Andrew Lunn
2026-06-24 10:04 ` [PATCH v3 3/7] net: wwan: t9xx: Add control DMA interface Jack Wu via B4 Relay
2026-06-24 16:15   ` Andrew Lunn
2026-06-29  7:29     ` [External Mail] " Wu. JackBB (GSM)
2026-06-24 10:04 ` [PATCH v3 4/7] net: wwan: t9xx: Add control port Jack Wu via B4 Relay
2026-06-24 10:04 ` [PATCH v3 5/7] net: wwan: t9xx: Add FSM thread Jack Wu via B4 Relay
2026-06-24 10:04 ` [PATCH v3 6/7] net: wwan: t9xx: Add AT & MBIM WWAN ports Jack Wu via B4 Relay
2026-06-24 10:04 ` [PATCH v3 7/7] net: wwan: t9xx: Add maintainers entry Jack Wu via B4 Relay
2026-06-25  0:09 ` [PATCH v3 0/7] net: wwan: t9xx: Add MediaTek T9XX WWAN driver Jakub Kicinski
2026-06-25  1:55   ` [External Mail] " Wu. JackBB (GSM)
2026-06-25  2:45     ` Jakub Kicinski

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