linux-kernel - Re: [PATCH 2/2] module: fix bne2 "gave up waiting for init of module libcrc32c"

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Date:	Wed, 2 Jun 2010 16:05:36 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Brandon Philips <brandon@...p.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	LKML <linux-kernel@...r.kernel.org>,
	Jon Masters <jonathan@...masters.org>,
	Tejun Heo <htejun@...il.com>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	Kay Sievers <kay.sievers@...y.org>
Subject: Re: [PATCH 2/2] module: fix bne2 "gave up waiting for init of module libcrc32c"

On Wed, 2 Jun 2010 02:14:37 pm Linus Torvalds wrote:
> (That function _really_ should be peeled like an onion, and split into 
> many smaller functions, so that we don't have ten error cases needing 
> unwinding. I like "goto error", but at some point you can't see the 
> unwinding any more, and that function has passed that point a long time 
> ago, I think)

Agreed.  Feel free to take a stab at it if you're bored.  Last I tried,
there wasn't an obvious split point which actually reduced the size of the
function.

And here's the tree I'm testing now (it compiles, currently rebasing to
dodge some unrelated -rc1 fs/block weirdness):

The following changes since commit 67a3e12b05e055c0415c556a315a3d3eb637e29e:
  Linus Torvalds (1):
        Linux 2.6.35-rc1

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6 modules

Eric Dumazet (1):
      module: module_unload_init() cleanup

Linus Torvalds (2):
      module: Make the 'usage' lists be two-way
      module: move find_module check to end

Rusty Russell (6):
      module: fix reference to mod->percpu after freeing module.
      module: fix kdb's illicit use of struct module_use.
      module: move sysfs exposure to end of load_module
      module: Make module sysfs functions private.
      module: make locking more fine-grained.
      module: fix bne2 "gave up waiting for init of module libcrc32c"

 include/linux/module.h      |   44 ++-----
 kernel/debug/kdb/kdb_main.c |   12 +--
 kernel/module.c             |  325 ++++++++++++++++++++++++++++---------------
 3 files changed, 226 insertions(+), 155 deletions(-)
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