linux-kernel - Re: Linux 3.7-rc1 (uml uapi errors)

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Date:	Mon, 15 Oct 2012 15:15:20 +0100
From:	David Howells <dhowells@...hat.com>
To:	Randy Dunlap <rdunlap@...otime.net>
Cc:	dhowells@...hat.com,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Richard Weinberger <richard@....at>
Subject: Re: Linux 3.7-rc1 (uml uapi errors)


Hi Randy,

Randy Dunlap <rdunlap@...otime.net> wrote:

> Building um (uml) for x86_64 (defconfig) has lots of errors like:
> 
> In file included from include/linux/irq.h:22:0,
>                  from include/asm-generic/hardirq.h:12,
>                  from arch/um/include/generated/asm/hardirq.h:1,
>                  from include/linux/hardirq.h:7,
>                  from include/linux/ftrace_event.h:7,
>                  from include/trace/syscall.h:6,
>                  from include/linux/syscalls.h:78,
>                  from init/noinitramfs.c:23:
> include/linux/irqnr.h:4:30: fatal error: uapi/linux/irqnr.h: No such file or directory

Did you build from a GIT tree, from a tarball or patch?

include/uapi/linux/irqnr.h ended up a zero-length file in GIT as there was
nothing in the original file outside of the __KERNEL__ guards.  Indeed, if I
look in /usr/include/irqnr.h, I see:

	#ifndef _LINUX_IRQNR_H
	#define _LINUX_IRQNR_H

	/*
	 * Generic irq_desc iterators:
	 */

	#endif

I suspect somehow the file got deleted, even though the patch shows it:

	diff --git a/include/uapi/linux/irqnr.h b/include/uapi/linux/irqnr.h
	new file mode 100644
	index 000000000000..e69de29bb2d1

David
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