linux-kernel - Re: scripts/mod/file2alias.c cross compile problem

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Message-ID: <jewswdvqpt.fsf@sykes.suse.de>
Date:	Thu, 02 Aug 2007 18:36:14 +0200
From:	Andreas Schwab <schwab@...e.de>
To:	"Luck, Tony" <tony.luck@...el.com>
Cc:	<trenn@...e.de>, "Adrian Bunk" <bunk@...sta.de>,
	"Sam Ravnborg" <sam@...nborg.org>, "Jan Dittmer" <jdi@....org>,
	"Len Brown" <lenb@...nel.org>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	<linux-acpi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-ia64@...r.kernel.org>
Subject: Re: scripts/mod/file2alias.c cross compile problem

"Luck, Tony" <tony.luck@...el.com> writes:

>> +#define FILLUP_LEN	7 /* dirty fix for i386 -> 64bit cross-compilation */
>>  
>>  struct acpi_device_id {
>>  	__u8 id[ACPI_ID_LEN];
>> +	__u8 dummy[FILLUP_LEN];
>>  	kernel_ulong_t driver_data;
>>  };
>
> What's so special about this structure that we get an error?

It's special because it's a device_id structure, and those structures
must come out identical using either the host or the target compiler.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@...e.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."
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