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| author | Tony Lindgren <tony@atomide.com> | 2021-01-15 12:48:43 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2021-01-15 12:48:43 +0200 |
| commit | 715a1284d89a740b197b3bad5eb20d36a397382f (patch) | |
| tree | 07ad2960ab66e56b3d1e151036262019a18e3df1 /arch/arm/mm/mmap.c | |
| parent | 181739822cf6f8f4e12b173913af2967a28906c0 (diff) | |
| parent | 06862d789ddde8a99c1e579e934ca17c15a84755 (diff) | |
| download | linux-715a1284d89a740b197b3bad5eb20d36a397382f.tar.gz linux-715a1284d89a740b197b3bad5eb20d36a397382f.tar.bz2 linux-715a1284d89a740b197b3bad5eb20d36a397382f.zip | |
Merge branch 'cpuidle-fix' into fixes
Diffstat (limited to 'arch/arm/mm/mmap.c')
| -rw-r--r-- | arch/arm/mm/mmap.c | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c index b8d912ac9e61..a0f8a0ca0788 100644 --- a/arch/arm/mm/mmap.c +++ b/arch/arm/mm/mmap.c @@ -165,25 +165,3 @@ int valid_mmap_phys_addr_range(unsigned long pfn, size_t size) { return (pfn + (size >> PAGE_SHIFT)) <= (1 + (PHYS_MASK >> PAGE_SHIFT)); } - -#ifdef CONFIG_STRICT_DEVMEM - -#include <linux/ioport.h> - -/* - * devmem_is_allowed() checks to see if /dev/mem access to a certain - * address is valid. The argument is a physical page number. - * We mimic x86 here by disallowing access to system RAM as well as - * device-exclusive MMIO regions. This effectively disable read()/write() - * on /dev/mem. - */ -int devmem_is_allowed(unsigned long pfn) -{ - if (iomem_is_exclusive(pfn << PAGE_SHIFT)) - return 0; - if (!page_is_ram(pfn)) - return 1; - return 0; -} - -#endif |