linux-kernel - Re: [PATCH v5 resend] OLPC: Add XO-1 suspend/resume support

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Message-Id: <20101208145040.e23f832d.akpm@linux-foundation.org>
Date:	Wed, 8 Dec 2010 14:50:40 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Daniel Drake <dsd@...top.org>
Cc:	mingo@...hat.com, tglx@...utronix.de, hpa@...or.com,
	x86@...nel.org, linux-kernel@...r.kernel.org, dilinger@...ued.net
Subject: Re: [PATCH v5 resend] OLPC: Add XO-1 suspend/resume support

On Fri,  3 Dec 2010 14:18:27 +0000 (GMT)
Daniel Drake <dsd@...top.org> wrote:

> Add code needed for basic suspend/resume of the XO-1 laptop.
> 
> As distro kernels would prefer to build XO-1 support modular, we have
> had to export suspend_set_ops() and create an exported function for
> reading the address of the initial page table.
> 
> Due to complications compiling asm into a module, the olpc-xo1.c file had to
> be renamed to have a name different from the target module name.
> 
> Based on earlier work by Jordan Crouse, Andres Salomon, and others.

x86_64 allmodconfig gives me

{standard input}: Assembler messages:
{standard input}:300: Error: suffix or operands invalid for `mov'

due to

        movl %rax,%eax  # tmp70

in olpc_xo1_do_sleep().


Also, this checkpatch warning

WARNING: struct platform_suspend_ops should normally be const
#502: FILE: arch/x86/platform/olpc/xo1.c:106:
+static struct platform_suspend_ops xo1_suspend_ops = {

seems valid.


Also, something in today's linux-next has mucked up the x86 Kconfig:

drivers/platform/x86/Kconfig:422:error: recursive dependency detected!
drivers/platform/x86/Kconfig:422:       symbol EEEPC_WMI depends on ACPI_WMI
drivers/platform/x86/Kconfig:438:       symbol ACPI_WMI is selected by ACER_WMI
drivers/platform/x86/Kconfig:18:        symbol ACER_WMI depends on LEDS_CLASS

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