From 67cfa23ac9df810d1fbf3a06b7f408243350ecfe Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 21 Dec 2010 10:42:20 +0000 Subject: [PATCH] Revert "ARM: relax ioremap prohibition (309caa9) for -final and -stable" This reverts commit 06c1088, as promised in the warning message. --- arch/arm/mm/ioremap.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index 17e7b0b..ab50627 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c @@ -204,12 +204,8 @@ void __iomem * __arm_ioremap_pfn_caller(unsigned long pfn, /* * Don't allow RAM to be mapped - this causes problems with ARMv6+ */ - if (pfn_valid(pfn)) { - printk(KERN_WARNING "BUG: Your driver calls ioremap() on system memory. This leads\n" - KERN_WARNING "to architecturally unpredictable behaviour on ARMv6+, and ioremap()\n" - KERN_WARNING "will fail in the next kernel release. Please fix your driver.\n"); - WARN_ON(1); - } + if (WARN_ON(pfn_valid(pfn))) + return NULL; type = get_mem_type(mtype); if (!type) -- 2.7.4