linux-kernel - [PULL] (Was Re: [PATCH 3.7-rc8] lib/Makefile: Fix oid

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Message-ID: <87k3svfytg.fsf@rustcorp.com.au>
Date:	Thu, 06 Dec 2012 17:32:19 +1030
From:	Rusty Russell <rusty@...abs.org>
To:	Tim Gardner <tim.gardner@...onical.com>,
	linux-kernel@...r.kernel.org
Cc:	Tim Gardner <tim.gardner@...onical.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Akinobu Mita <akinobu.mita@...il.com>,
	Michel Lespinasse <walken@...gle.com>,
	David Howells <dhowells@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>
Subject: [PULL] (Was Re: [PATCH 3.7-rc8] lib/Makefile: Fix oid_registry build dependency)

Tim Gardner <tim.gardner@...onical.com> writes:
> It is $(obj)/oid_registry.o that is dependent on $(obj)/oid_registry_data.c.
> The object file cannot be built until $(obj)/oid_registry_data.c has been
> generated.
>
> A periodic and hard to reproduce parallel build failure is due to
> this incorrect lib/Makefile dependency. The compile error is completely
> disingenuous.
>
>   GEN     lib/oid_registry_data.c
> Compiling 49 OIDs
>   CC      lib/oid_registry.o
> gcc: error: lib/oid_registry.c: No such file or directory
> gcc: fatal error: no input files
> compilation terminated.
> make[3]: *** [lib/oid_registry.o] Error 4

I can't reproduce it either.  It's completely weird; nothing ever
removes lib/oid_registry.c, so either gcc is giving the wrong message or
it's a weird fs with a very odd race.

But your version is definitely more correct than the previous one, so...

Linus, please pull my 'more-fixes' branch:

git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux.git more-fixes

Thanks,
Rusty.
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