[PATCH net v1] net: wwan: iosm: Remove unneeded if_mutex lock

[Kumar, M Chetan]

> -----Original Message-----
> From: zhaoping.shu at mediatek.com <zhaoping.shu at mediatek.com>
> Sent: Tuesday, November 1, 2022 11:21 AM
> To: Kumar, M Chetan <m.chetan.kumar at intel.com>; linuxwwan
> <linuxwwan at intel.com>; loic.poulain at linaro.org; ryazanov.s.a at gmail.com;
> johannes at sipsolutions.net; davem at davemloft.net; edumazet at google.com;
> kuba at kernel.org; pabeni at redhat.com; matthias.bgg at gmail.com
> Cc: netdev at vger.kernel.org; linux-kernel at vger.kernel.org; linux-arm-
> kernel at lists.infradead.org; linux-mediatek at lists.infradead.org; Liu, Haijun
> <haijun.liu at mediatek.com>; xiayu.zhang at mediatek.com;
> lambert.wang at mediatek.com; zhaoping.shu
> <zhaoping.shu at mediatek.com>
> Subject: [PATCH net v1] net: wwan: iosm: Remove unneeded if_mutex lock
> 
> From: "zhaoping.shu" <zhaoping.shu at mediatek.com>
> 
> These WWAN network interface operations (create/delete/open/close) are
> already protected by RTNL lock, i.e., wwan_ops.newlink(),
> wwan_ops.dellink(), net_device_ops.ndo_open() and net_device.ndo_stop()
> are called with RTNL lock held.
> Therefore, this patch removes the unnecessary if_mutex.
> 
> Signed-off-by: zhaoping.shu <zhaoping.shu at mediatek.com>

Reviewed-by: M Chetan Kumar <m.chetan.kumar at intel.com>