linux-kernel - Re: [PATCH 1/2] net/netfilter/ipvs: Move #define KMSG

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1254358235.2960.145.camel@Joe-Laptop.home>
Date:	Wed, 30 Sep 2009 17:50:35 -0700
From:	Joe Perches <joe@...ches.com>
To:	Jan Engelhardt <jengelh@...ozas.de>
Cc:	Patrick McHardy <kaber@...sh.net>,
	"David S. Miller" <davem@...emloft.net>,
	Simon Horman <horms@...ge.net.au>,
	Julian Anastasov <ja@....bg>, netfilter-devel@...r.kernel.org,
	coreteam@...filter.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, lvs-devel@...r.kernel.org
Subject: Re: [PATCH 1/2] net/netfilter/ipvs: Move #define KMSG_COMPONENT to
 Makefile

On Thu, 2009-10-01 at 02:31 +0200, Jan Engelhardt wrote:
> KBUILD_MODNAME is special in that it is derived from the actual
> source filename.

Kind of.  It's derived from the module name, not the filename.

> Of course you could put #define KBUILD_MODNAME "foo"
> in your source file, but that is like putting changelogs there
> when they belong into the git log.

I agree with that.

> Well I personally prefer the #include instead of hiding such in 
> Makefiles. You know, when newcomers could start doing `grep 
> KMSG_COMPONENT *.[ch]`. Perhaps GCC's -include flag in a Makefile
> to avoid #includes in .c files?

I imagine an eventual goal of standardizing the default
pr_fmt define in kernel.h to

	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

so that all pr_<level> calls get this unless otherwise
specified.

Or perhaps better, to get rid of pr_fmt(fmt) altogether and
have printk emit the filename/modulename, function and/or
code offset by using something like %pS after the level.

I see the Makefile use, which I don't really like too much
because of the information hiding, as an intermediate step
until that's possible.


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/