diff options
Diffstat (limited to 'tools/testing/scatterlist/linux/mm.h')
| -rw-r--r-- | tools/testing/scatterlist/linux/mm.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tools/testing/scatterlist/linux/mm.h b/tools/testing/scatterlist/linux/mm.h index 6f9ac14aa800..f9a12005fcea 100644 --- a/tools/testing/scatterlist/linux/mm.h +++ b/tools/testing/scatterlist/linux/mm.h @@ -33,6 +33,7 @@ typedef unsigned long dma_addr_t; #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) #define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) #define ALIGN(x, a) __ALIGN_KERNEL((x), (a)) +#define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) @@ -114,6 +115,12 @@ static inline void *kmalloc(unsigned int size, unsigned int flags) return malloc(size); } +static inline void * +kmalloc_array(unsigned int n, unsigned int size, unsigned int flags) +{ + return malloc(n * size); +} + #define kfree(x) free(x) #define kmemleak_alloc(a, b, c, d) @@ -122,4 +129,33 @@ static inline void *kmalloc(unsigned int size, unsigned int flags) #define PageSlab(p) (0) #define flush_kernel_dcache_page(p) +#define MAX_ERRNO 4095 + +#define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) + +static inline void * __must_check ERR_PTR(long error) +{ + return (void *) error; +} + +static inline long __must_check PTR_ERR(__force const void *ptr) +{ + return (long) ptr; +} + +static inline bool __must_check IS_ERR(__force const void *ptr) +{ + return IS_ERR_VALUE((unsigned long)ptr); +} + +static inline int __must_check PTR_ERR_OR_ZERO(__force const void *ptr) +{ + if (IS_ERR(ptr)) + return PTR_ERR(ptr); + else + return 0; +} + +#define IS_ENABLED(x) (0) + #endif |