diff options
-rw-r--r-- | arch/arm/mm/ioremap.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index ab506272b2d..17e7b0b57e4 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c | |||
@@ -204,8 +204,12 @@ void __iomem * __arm_ioremap_pfn_caller(unsigned long pfn, | |||
204 | /* | 204 | /* |
205 | * Don't allow RAM to be mapped - this causes problems with ARMv6+ | 205 | * Don't allow RAM to be mapped - this causes problems with ARMv6+ |
206 | */ | 206 | */ |
207 | if (WARN_ON(pfn_valid(pfn))) | 207 | if (pfn_valid(pfn)) { |
208 | return NULL; | 208 | printk(KERN_WARNING "BUG: Your driver calls ioremap() on system memory. This leads\n" |
209 | KERN_WARNING "to architecturally unpredictable behaviour on ARMv6+, and ioremap()\n" | ||
210 | KERN_WARNING "will fail in the next kernel release. Please fix your driver.\n"); | ||
211 | WARN_ON(1); | ||
212 | } | ||
209 | 213 | ||
210 | type = get_mem_type(mtype); | 214 | type = get_mem_type(mtype); |
211 | if (!type) | 215 | if (!type) |