linux-kernel - [net-next PATCH RFC] net: dsa: qca8k: move driver to qca dir

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Message-Id: <20220630134606.25847-1-ansuelsmth@gmail.com>
Date:   Thu, 30 Jun 2022 15:46:06 +0200
From:   Christian Marangi <ansuelsmth@...il.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Jens Axboe <axboe@...nel.dk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Christian Marangi <ansuelsmth@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [net-next PATCH RFC] net: dsa: qca8k: move driver to qca dir

Move qca8k driver to qca dir in preparation for code split and
introduction of ipq4019 switch based on qca8k.

Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
---

Posting this as a RFC to discuss the problems of such change.

This is needed as in the next future the qca8k driver will be split
to a common code. This needs to be done as the ipq4019 is based on qca8k
but will have some additional configuration thing and other phylink
handling so it will require different setup function. Aside from these
difference almost all the regs are the same of qca8k.

For this reason keeping the driver in the generic dsa dir would create
some caos and I think it would be better to move it the dedicated qca
dir.

This will for sure creates some problems with backporting patch.

So the question is... Is this change acceptable or we are cursed to
keeping this driver in the generic dsa directory?

Additional bonus question, since the ethernet part still requires some
time to get merged, wonder if it's possible to send the code split with
qca8k as the only user (currently) and later just add the relevant
ipq4019 changes.

(this ideally is to prepare stuff and not send a big scary series when
it's time to send ipq4019 changes)

 drivers/net/dsa/Kconfig           | 8 --------
 drivers/net/dsa/Makefile          | 1 -
 drivers/net/dsa/qca/Kconfig       | 8 ++++++++
 drivers/net/dsa/qca/Makefile      | 1 +
 drivers/net/dsa/{ => qca}/qca8k.c | 0
 drivers/net/dsa/{ => qca}/qca8k.h | 0
 6 files changed, 9 insertions(+), 9 deletions(-)
 rename drivers/net/dsa/{ => qca}/qca8k.c (100%)
 rename drivers/net/dsa/{ => qca}/qca8k.h (100%)

diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index 702d68ae435a..d8ae0e8af2a0 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -60,14 +60,6 @@ source "drivers/net/dsa/sja1105/Kconfig"
 
 source "drivers/net/dsa/xrs700x/Kconfig"
 
-config NET_DSA_QCA8K
-	tristate "Qualcomm Atheros QCA8K Ethernet switch family support"
-	select NET_DSA_TAG_QCA
-	select REGMAP
-	help
-	  This enables support for the Qualcomm Atheros QCA8K Ethernet
-	  switch chips.
-
 source "drivers/net/dsa/realtek/Kconfig"
 
 config NET_DSA_RZN1_A5PSW
diff --git a/drivers/net/dsa/Makefile b/drivers/net/dsa/Makefile
index b32907afa702..16eb879e0cb4 100644
--- a/drivers/net/dsa/Makefile
+++ b/drivers/net/dsa/Makefile
@@ -8,7 +8,6 @@ endif
 obj-$(CONFIG_NET_DSA_LANTIQ_GSWIP) += lantiq_gswip.o
 obj-$(CONFIG_NET_DSA_MT7530)	+= mt7530.o
 obj-$(CONFIG_NET_DSA_MV88E6060) += mv88e6060.o
-obj-$(CONFIG_NET_DSA_QCA8K)	+= qca8k.o
 obj-$(CONFIG_NET_DSA_RZN1_A5PSW) += rzn1_a5psw.o
 obj-$(CONFIG_NET_DSA_SMSC_LAN9303) += lan9303-core.o
 obj-$(CONFIG_NET_DSA_SMSC_LAN9303_I2C) += lan9303_i2c.o
diff --git a/drivers/net/dsa/qca/Kconfig b/drivers/net/dsa/qca/Kconfig
index 13b7e679b8b5..ba339747362c 100644
--- a/drivers/net/dsa/qca/Kconfig
+++ b/drivers/net/dsa/qca/Kconfig
@@ -7,3 +7,11 @@ config NET_DSA_AR9331
 	help
 	  This enables support for the Qualcomm Atheros AR9331 built-in Ethernet
 	  switch.
+
+config NET_DSA_QCA8K
+	tristate "Qualcomm Atheros QCA8K Ethernet switch family support"
+	select NET_DSA_TAG_QCA
+	select REGMAP
+	help
+	  This enables support for the Qualcomm Atheros QCA8K Ethernet
+	  switch chips.
diff --git a/drivers/net/dsa/qca/Makefile b/drivers/net/dsa/qca/Makefile
index 274022319066..40bb7c27285b 100644
--- a/drivers/net/dsa/qca/Makefile
+++ b/drivers/net/dsa/qca/Makefile
@@ -1,2 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_NET_DSA_AR9331)	+= ar9331.o
+obj-$(CONFIG_NET_DSA_QCA8K)	+= qca8k.o
diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca/qca8k.c
similarity index 100%
rename from drivers/net/dsa/qca8k.c
rename to drivers/net/dsa/qca/qca8k.c
diff --git a/drivers/net/dsa/qca8k.h b/drivers/net/dsa/qca/qca8k.h
similarity index 100%
rename from drivers/net/dsa/qca8k.h
rename to drivers/net/dsa/qca/qca8k.h
-- 
2.36.1