diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-10-19 23:12:24 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-10-19 23:12:24 +0400 |
| commit | f779b7dd3259ec138c7aba793f0602b20262af83 (patch) | |
| tree | 7ed94961b196c81fcd413e2b04d1e6945d6d227a /arch/arm/mm/ioremap.c | |
| parent | 3c00079b31f910309b30ed5c2fd2b7a2d86bba60 (diff) | |
| parent | fe0cdec8bad919fd91cd344123906a55f3857209 (diff) | |
| download | linux-f779b7dd3259ec138c7aba793f0602b20262af83.tar.xz | |
Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable
Conflicts:
arch/arm/mach-at91/include/mach/system.h
arch/arm/mach-imx/mach-cpuimx27.c
AT91 conflict resolution:
Acked-by: Anders Larsen <al@alarsen.net>
IMX conflict resolution confirmed by Uwe Kleine-König.
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) |