Symbol: DMA_BIT_MASK
sys/compat/linuxkpi/common/include/linux/dma-mapping.h
91
#define DMA_BIT_MASK(n) ((2ULL << ((n) - 1)) - 1ULL)
sys/dev/drm2/drmP.h
1696
#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : (1ULL<<(n)) - 1)