linux-kernel - Re: [PATCH] kexec: Add prefix "kexec" to output message

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Message-ID: <20150923051419.GA21804@dhcp-128-25.nay.redhat.com>
Date:	Wed, 23 Sep 2015 13:14:19 +0800
From:	Minfei Huang <mhuang@...hat.com>
To:	Baoquan He <bhe@...hat.com>
Cc:	Dave Young <dyoung@...hat.com>, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, kexec@...ts.infradead.org,
	Minfei Huang <mnfhuang@...il.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: [PATCH] kexec: Add prefix "kexec" to output message

On 09/23/15 at 10:49am, Baoquan He wrote:
> On 09/23/15 at 09:37am, Dave Young wrote:
> > > > Hi, Dave.
> > > > 
> > > > How about removing all of the prefix "crashkernel" in kexec_core. Thus
> > > > we can be consistent with the output message prefix "kexec".
> > > 
> > > Ping, any comment is appreciate and helpful.
> > 
> > Remove "crashkernel" sounds not a proper way, it indicates crashkernel parsing
> > messages. I have no idea what is the best way but below modification sounds better to me:
> > 
> > kexec_core.c:
> > 
> > #define pr_fmt(fmt)        "[kexec_core] " fmt
> > Also remove below prefix "Kexec:"
> > pr_warn("Kexec: Memory allocation for saving cpu register states failed\n"); 
> > 
> > kexec.c:
> > #define pr_fmt(fmt)        "[kexec] " fmt
> > 
> > kexec_file.c:
> > #define pr_fmt(fmt)        "[kexec_file] " fmt
> 
> This is weird, user really don't need to know each file. I saw you added
> a new file kexec_internal.h and all three files includes it. Why not doing
> it there to make it the same as before?

The output message format is incorrect, if other *.c (except for kexec*)
include the kexec_internal.h.

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

How about defining the format like above in each *.c?

Thanks
Minfei
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