linux-kernel - Re: [PATCH] Use descriptor's functions instead of inline assembly

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Date:	Sat, 21 Jul 2007 18:03:27 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Glauber de Oliveira Costa <gcosta@...hat.com>
cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org, ak@...e.de
Subject: Re: [PATCH] Use descriptor's functions instead of inline assembly


On Jul 20 2007 10:56, Glauber de Oliveira Costa wrote:
>diff --git a/arch/x86_64/kernel/head64.c b/arch/x86_64/kernel/head64.c
>index 6c34bdd..dde41d7 100644
>--- a/arch/x86_64/kernel/head64.c
>+++ b/arch/x86_64/kernel/head64.c
>@@ -70,7 +70,7 @@ void __init x86_64_start_kernel(char * real_mode_data)
> 
> 	for (i = 0; i < IDT_ENTRIES; i++)
> 		set_intr_gate(i, early_idt_handler);
>-	asm volatile("lidt %0" :: "m" (idt_descr));
>+	load_idt((const struct desc_ptr *)&idt_descr);

Cast is not required, &idt_descr is already 'struct desc_ptr *'. (Also
elsewhere)


	Jan
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