linux-kernel - Re: [PATCH net-next v3 01/10] net: wwan: tmi: Add PCIe core

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Date:   Fri, 24 Feb 2023 11:50:52 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     "Yanchao Yang (杨彦超)" <Yanchao.Yang@...iatek.com>
Cc:     "Chris Feng (冯保林)" <Chris.Feng@...iatek.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "Mingliang Xu (徐明亮)" <mingliang.xu@...iatek.com>,
        "Min Dong (董敏)" <min.dong@...iatek.com>,
        "linuxwwan@...el.com" <linuxwwan@...el.com>,
        "m.chetan.kumar@...el.com" <m.chetan.kumar@...el.com>,
        "Liang Lu (吕亮)" <liang.lu@...iatek.com>,
        "Haijun Liu (刘海军)" <haijun.liu@...iatek.com>,
        "Haozhe Chang (常浩哲)" <Haozhe.Chang@...iatek.com>,
        "Hua Yang (杨华)" <Hua.Yang@...iatek.com>,
        "ryazanov.s.a@...il.com" <ryazanov.s.a@...il.com>,
        "Xiayu Zhang (张夏宇)" <Xiayu.Zhang@...iatek.com>,
        "loic.poulain@...aro.org" <loic.poulain@...aro.org>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "Ting Wang (王挺)" <ting.wang@...iatek.com>,
        "johannes@...solutions.net" <johannes@...solutions.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "Aiden Wang ( 王咏麒)" <Aiden.Wang@...iatek.com>,
        "Felix Chen ( 陈非)" <Felix.Chen@...iatek.com>,
        "Lambert Wang ( 王伟)" <Lambert.Wang@...iatek.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "Mingchuang Qiao (乔明闯)" 
        <Mingchuang.Qiao@...iatek.com>,
        "Guohao Zhang (张国豪)" <Guohao.Zhang@...iatek.com>
Subject: Re: [PATCH net-next v3 01/10] net: wwan: tmi: Add PCIe core

On Fri, 24 Feb 2023 07:39:33 +0000 Yanchao Yang (杨彦超) wrote:
> > > Do you really need these flags?  
> > 
> > We will check and update if it's really redundant soon.  
> Update test result.
> Both flags are deleted, then run the make command with 
> "build in" and "build module" on a separate kernel tree. Both suffer
> the same build error.
> “drivers/net/wan/mediatek/pcie/mtk_pci.c:16:10: fatal error: mtk_fsm.h:
> No such file or directory
>  #include "mtk_fsm.h""
> The reason is that all files are not placed in the same folder. The
> driver named TMI needs a child folder, then needs these flags.
> 
> Any ideas or comments for this? Please help share it at your
> convenience.

Relative paths work, right?

> > > Labels should be named after action they perform, not where they
> > > jump
> > > from. Please fix this everywhere.  
> > 
> > We can found similar samples in kernel codes, naming the label per
> > where jump from…
> > ex. pci-sysfs.c
> > shall we apply this rule to our driver?
> > I
> > t's mandatory or nice to have.  
> 
> Any ideas or comments for this? Please help share it at your
> convenience.

It's mandatory for new code.