Re: [PATCH] init: Do not warn on non-zero initcall return

From: Linus Torvalds
Date: Wed May 01 2013 - 13:11:23 EST


On Wed, May 1, 2013 at 8:02 AM, Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> Commit f91eb62f71 "init: scream bloody murder if interrupts are enabled
> too early" added three new warnings. The first two seemed reasonable,
> but the third included a warning when an initcall returned non-zero.
> Although, the third WARN() does include an imbalanced preempt disabled,
> or irqs disable, it shouldn't warn if it only had an initcall that just
> returns non-zero.

Ugh. Sorry, but this patch just looks stupid.

It seems that the right thing to do is to just remove the whole crappy

if (ret && ret != -ENODEV && initcall_debug)
sprintf(msgbuf, "error code %d ", ret);

thing entirely, since it's moronic to add that error code printout
anyway, since if initcall_debug is set, we already do a much *better*
job earlier with the whole

pr_debug("initcall %pF returned %d after %lld usecs\n",
fn, ret, duration);

printout in do_one_initcall_debug(). That will then fix the WARN()
issue automatically.

Hmm?

Linus
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