diff options
| author | Ishan Mittal <imittal@nvidia.com> | 2014-06-05 13:31:21 +0530 |
|---|---|---|
| committer | Ishan Mittal <imittal@nvidia.com> | 2014-06-05 13:37:37 +0530 |
| commit | dce68ca8e1015cf5bcd33284c0c1c9191e79885d (patch) | |
| tree | 7fed5c66956b9ffeadac67750aa042fc9b70f1a1 /arch/arm/mm/mmap.c | |
| parent | 60ca8709496cbcfe7dc931a2ec8786f82b2761eb (diff) | |
| parent | be67db109090b17b56eb8eb2190cd70700f107aa (diff) | |
Merge branch 'linux-3.10.40' into rel-21
Bug 200004122
Conflicts:
drivers/cpufreq/cpufreq.c
drivers/regulator/core.c
sound/soc/codecs/max98090.c
Change-Id: I9418a05ad5c56b2e902249218bac2fa594d99f56
Signed-off-by: Ishan Mittal <imittal@nvidia.com>
Diffstat (limited to 'arch/arm/mm/mmap.c')
| -rw-r--r-- | arch/arm/mm/mmap.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c index 8bc7479eb7d8..a5b1934e711b 100644 --- a/arch/arm/mm/mmap.c +++ b/arch/arm/mm/mmap.c @@ -219,13 +219,11 @@ int valid_phys_addr_range(phys_addr_t addr, size_t size) } /* - * We don't use supersection mappings for mmap() on /dev/mem, which - * means that we can't map the memory area above the 4G barrier into - * userspace. + * Do not allow /dev/mem mappings beyond the supported physical range. */ int valid_mmap_phys_addr_range(unsigned long pfn, size_t size) { - return !(pfn + (size >> PAGE_SHIFT) > 0x00100000); + return (pfn + (size >> PAGE_SHIFT)) <= (1 + (PHYS_MASK >> PAGE_SHIFT)); } #ifdef CONFIG_STRICT_DEVMEM |