diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-09-21 14:26:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-09-21 14:26:23 -0700 |
| commit | 9d10890792a96ed796a44565924327aa276fa468 (patch) | |
| tree | 94e3aa53d8ad06f2867e1f939d981d518d92ac0a | |
| parent | 519b3b742d7d29c3386f0f35f3cee5dd362dd8e2 (diff) | |
| parent | 73e8f3d7e2cb23614d5115703d76d8e54764b641 (diff) | |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Small fixlets"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm/init.c: Fix devmem_is_allowed() off by one
x86/kconfig: Remove outdated reference to Intel CPUs in CONFIG_SWIOTLB
| -rw-r--r-- | arch/x86/Kconfig | 8 | ||||
| -rw-r--r-- | arch/x86/mm/init.c | 2 |
2 files changed, 5 insertions, 5 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 8ec3a1aa4abd..50a1d1f9b6d3 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -746,10 +746,10 @@ config SWIOTLB def_bool y if X86_64 ---help--- Support for software bounce buffers used on x86-64 systems - which don't have a hardware IOMMU (e.g. the current generation - of Intel's x86-64 CPUs). Using this PCI devices which can only - access 32-bits of memory can be used on systems with more than - 3 GB of memory. If unsure, say Y. + which don't have a hardware IOMMU. Using this PCI devices + which can only access 32-bits of memory can be used on systems + with more than 3 GB of memory. + If unsure, say Y. config IOMMU_HELPER def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU) diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index e0e6990723e9..ab1f6a93b527 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -319,7 +319,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, */ int devmem_is_allowed(unsigned long pagenr) { - if (pagenr <= 256) + if (pagenr < 256) return 1; if (iomem_is_exclusive(pagenr << PAGE_SHIFT)) return 0; |