linux-kernel - Re: [PATCH] media: dvb_ca_en50221: Add a returing EBUSY logic into CA

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Message-ID: <20250201140152.52109e19@foz.lan>
Date: Sat, 1 Feb 2025 14:01:52 +0100
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To: YongSu Yoo <yongsuyoo0215@...il.com>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>, Markus Elfring
 <Markus.Elfring@....de>, linux-media@...r.kernel.org, Hyunwoo Kim
 <v4bel@...ori.io>, LKML <linux-kernel@...r.kernel.org>, Dan Carpenter
 <dan.carpenter@...aro.org>, yongsu.yoo@....com
Subject: Re: [PATCH] media: dvb_ca_en50221: Add a returing EBUSY logic into
 CA_RESET

Em Sat, 1 Feb 2025 09:24:27 +0100
Mauro Carvalho Chehab <mchehab+huawei@...nel.org> escreveu:

> Em Sat, 1 Feb 2025 09:44:18 +0900
> YongSu Yoo <yongsuyoo0215@...il.com> escreveu:
> 
> > Dear Mauro Carvalho Chehab
> > 
> > I know how to send an E-mail using "....git send-email --to .."
> > But,
> > I do not know how to reply to this E-mail loop using "....git send-email
> > --to .."
> > Can you kindly guide me ?  
> 
> Never used git send-email to reply, as it is mainly focused on sending
> e-mails, not being a true emailer: it just sends e-mail: it doesn't
> receive. In thesis, you could download the original e-mail using b4 or lei, 
> then manually write a reply text on it and use git send-email. This is
> easier said than done, as you'll need to take care of SMTP headers yourself.
> This would require some knowledge about SMTP RFCs.
> 
> If I were you, I would seek for some other alternatives.
> 
> Most people use mutt for Kernel work, as it is CLI. There is also alpine
> I haven't used alpine for ages, but it is a decent CLI e-mail client, using
> a very simple interface, although it has less features than mutt.
> 
> I prefer instead to use claws-mail as it has a reasonable GUI, it is fast
> and it is not overbloated with features I won't use.
> 
> Neither mutt, alpine or claws-mail mangle whitespaces and line breaks on
> e-mails, and they can be setup to not do top-postings.
> 
> If you want something simpler, perhaps you could try notmuch[1]. I never
> tried myself, but I heard it can be used to reply to e-mails without even
> needing to subscribe to a ML.
> 
> [1] https://notmuchmail.org/
> 
> You may also find useful to have a SMTP relay server. Probably one of the
> simplest ones to setup is msmtp: https://marlam.de/msmtp/.
> 
> I hope that helps.

Btw, there's a chapter at Kernel documentation related to e-mail
clients:

https://www.kernel.org/doc/html/latest/process/email-clients.html

> 
> Regards,
> Mauro
> 
> 
> > 
> > 2024년 5월 31일 (금) 오전 3:31, Mauro Carvalho Chehab <mchehab@...nel.org>님이 작성:
> >   
> > > Em Tue, 28 May 2024 21:14:37 +0900
> > > YongSu Yoo <yongsuyoo0215@...il.com> escreveu:
> > >    
> > > > Dear Markus Elfring    
> > >
> > > Please don't top-post. Makes hard to follow the comments.    
> > > >
> > > >
> > > > 2024년 5월 28일 (화) 오후 2:38, Markus Elfring <Markus.Elfring@....de>님이 작성:
> > > >    
> > > > >
> > > > > …    
> > > > > > For preventing this problem from happening, we make CA_RESET ioctl do
> > > > > > nothing and only return EBUSY if the ioctl is called during the
> > > > > > "transiting" states.    
> > > > >
> > > > > Would you like to avoid any typos (in the summary phrase)?    
> > >    
> > > > Initially, I sent this E-mail using the below command
> > > > "....git send-email --to  mchehab@...nel.org,
> > > > linux-media@...r.kernel.org, xxxxxxxxxxx.patch. ..."    
> > >
> > > Git send-email is a good way to send patches. You may also use
> > > a decent e-mail client that won't mangle with whitespaces. I use
> > > myself claws-mail; other develpers use emacs. Feel free to pick your
> > > poison, but if the email doesn't handle whitespaces well and/or
> > > don't allow writing the answers below the original comments (instead
> > > of top-posting), it shouldn't be used.
> > >    
> > > > In response to what you suggested, is it OK if I use Gmail and attach
> > > > a new patch ?    
> > >
> > > No. Never attach a patch as the mailing list will reject, and if not,
> > > patchwork.linuxtv.org won't pick it.
> > >
> > > You may use gmail, if you setup your e-mail client to use it as a
> > > SMTP server. Using webmail solutions typically won't work open source
> > > discussions, as it does lots of wrong things, like top-posting, not
> > > honoring 80 columns on emails and/or mangling tabs and white spaces.
> > >
> > > Thanks,
> > > Mauro
> > >    
> 
> 
> 
> Thanks,
> Mauro



Thanks,
Mauro