linux-kernel - [PATCH] x86/power/64: Use __pa() for physical address computation

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Date:	Sun, 14 Aug 2016 04:07:32 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Linux PM list <linux-pm@...r.kernel.org>,
	the arch/x86 maintainers <x86@...nel.org>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86/power/64: Use __pa() for physical address computation

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

The value of temp_level4_pgt is the physical address of the
top-level page directory, so use __pa() to compute it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 arch/x86/power/hibernate_64.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-pm/arch/x86/power/hibernate_64.c
===================================================================
--- linux-pm.orig/arch/x86/power/hibernate_64.c
+++ linux-pm/arch/x86/power/hibernate_64.c
@@ -113,7 +113,7 @@ static int set_up_temporary_mappings(voi
 			return result;
 	}
 
-	temp_level4_pgt = (unsigned long)pgd - __PAGE_OFFSET;
+	temp_level4_pgt = __pa(pgd);
 	return 0;
 }