diff options
| author | Mark Brown | 2010-11-01 13:58:18 -0400 |
|---|---|---|
| committer | Mark Brown | 2010-11-01 13:58:18 -0400 |
| commit | 6e1bd1ab1d9ab8e83cdc940df82fbf8418e2593f (patch) | |
| tree | f1324a39f155375221ed88db0626f61b75c51db6 /arch/arm/mm/ioremap.c | |
| parent | fec6dd833e733b5d9588a1f1e4d81118b79b5774 (diff) | |
| parent | 76a6106f124e375df0ea6ba6bcf204b8caff786a (diff) | |
Merge branch 'for-2.6.37' into for-2.6.38
Diffstat (limited to 'arch/arm/mm/ioremap.c')
| -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 ab506272b2d3..17e7b0b57e49 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, /* * Don't allow RAM to be mapped - this causes problems with ARMv6+ */ - if (WARN_ON(pfn_valid(pfn))) - return NULL; + 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); + } type = get_mem_type(mtype); if (!type) |