netdev - [PATCH net-next v2 09/10] net: iosm: create default link via WWAN core

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Message-Id: <20210621225100.21005-10-ryazanov.s.a@gmail.com>
Date:   Tue, 22 Jun 2021 01:50:59 +0300
From:   Sergey Ryazanov <ryazanov.s.a@...il.com>
To:     Loic Poulain <loic.poulain@...aro.org>,
        Johannes Berg <johannes@...solutions.net>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, M Chetan Kumar <m.chetan.kumar@...el.com>,
        Intel Corporation <linuxwwan@...el.com>
Subject: [PATCH net-next v2 09/10] net: iosm: create default link via WWAN core

Utilize the just introduced WWAN core feature to create a default netdev
for the default data (IP MUX) channel.

Signed-off-by: Sergey Ryazanov <ryazanov.s.a@...il.com>
CC: M Chetan Kumar <m.chetan.kumar@...el.com>
CC: Intel Corporation <linuxwwan@...el.com>
---

v1 -> v2:
 * new patch

 drivers/net/wwan/iosm/iosm_ipc_imem_ops.h | 3 +++
 drivers/net/wwan/iosm/iosm_ipc_wwan.c     | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.h b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.h
index 84087cf33329..fd356dafbdd6 100644
--- a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.h
+++ b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.h
@@ -30,6 +30,9 @@
 #define IP_MUX_SESSION_START 1
 #define IP_MUX_SESSION_END 8
 
+/* Default IP MUX channel */
+#define IP_MUX_SESSION_DEFAULT	1
+
 /**
  * ipc_imem_sys_port_open - Open a port link to CP.
  * @ipc_imem:	Imem instance.
diff --git a/drivers/net/wwan/iosm/iosm_ipc_wwan.c b/drivers/net/wwan/iosm/iosm_ipc_wwan.c
index adb2bd40a404..d3cb28107836 100644
--- a/drivers/net/wwan/iosm/iosm_ipc_wwan.c
+++ b/drivers/net/wwan/iosm/iosm_ipc_wwan.c
@@ -317,8 +317,9 @@ struct iosm_wwan *ipc_wwan_init(struct iosm_imem *ipc_imem, struct device *dev)
 	ipc_wwan->dev = dev;
 	ipc_wwan->ipc_imem = ipc_imem;
 
+	/* WWAN core will create a netdev for the default IP MUX channel */
 	if (wwan_register_ops(ipc_wwan->dev, &iosm_wwan_ops, ipc_wwan,
-			      WWAN_NO_DEFAULT_LINK)) {
+			      IP_MUX_SESSION_DEFAULT)) {
 		kfree(ipc_wwan);
 		return NULL;
 	}
-- 
2.26.3