函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\dma-mapping.h Create Date:2022-07-27 06:51:44
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:dma_addressing_limited - return if the device is addressing limited*@dev: device to check* Return %true if the devices DMA mask is too small to address all memory in* the system, else %false. Lack of addressing bits is the prime reason for

函数原型:static inline bool dma_addressing_limited(struct device *dev)

返回类型:bool

参数:

类型参数名称
struct device *dev
697  返回:min_not_zero - return the minimum that is _not_ zero, unless both are zero*@x: value1*@y: value2(dma_get_mask(dev), upstream dma constraint )小于dma_get_required_mask(dev)
调用者
名称描述
dma_direct_max_mapping_size