函数逻辑报告

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Brick Technologies Co., Ltd

Source Code:lib\scatterlist.c Create Date:2022-07-27 07:17:46
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:sg_miter_stop - stop mapping iteration*@miter: sg mapping iter to be stopped* Description:* Stops mapping iterator @miter. @miter should have been started* using sg_miter_start(). A stopped iteration can be resumed by* calling sg_miter_next() on it

函数原型:void sg_miter_stop(struct sg_mapping_iter *miter)

返回类型:void

参数:

类型参数名称
struct sg_mapping_iter *miter
802  WARN_ON( number of consumed bytes > length of the mapped area )
805  如果 pointer to the mapped area
806  offset within page 加等于 number of consumed bytes
807  remaining bytes on page 减等于 number of consumed bytes
809  如果__flags按位与lush back to phys on unmap 且非PageSlab( currently mapped page )则flush_kernel_dcache_page( currently mapped page )
813  如果__flags按位与use kmap_atomic
816  否则kunmap( currently mapped page )
819  currently mapped page = NULL
820  pointer to the mapped area = NULL
821  length of the mapped area 等于0
822  number of consumed bytes 等于0
调用者
名称描述
sg_miter_skipsg_miter_skip - reposition mapping iterator*@miter: sg mapping iter to be skipped*@offset: number of bytes to plus the current location* Description:* Sets the offset of @miter to its current location plus @offset bytes
sg_miter_nextsg_miter_next - proceed mapping iterator to the next mapping*@miter: sg mapping iter to proceed* Description:* Proceeds @miter to the next mapping. @miter should have been started* using sg_miter_start(). On successful return, @miter->page,
sg_copy_buffersg_copy_buffer - Copy data between a linear buffer and an SG list*@sgl: The SG list*@nents: Number of SG entries*@buf: Where to copy from*@buflen: The number of bytes to copy*@skip: Number of bytes to skip before copying*@to_buffer: transfer direction
sg_zero_buffersg_zero_buffer - Zero-out a part of a SG list*@sgl: The SG list*@nents: Number of SG entries*@buflen: The number of bytes to zero out*@skip: Number of bytes to skip before zeroing* Returns the number of bytes zeroed.
chacha20poly1305_crypt_sg_inplace
mpi_write_to_sglmpi_write_to_sgl() - Funnction exports MPI to an sgl (msb first)* This function works in the same way as the mpi_read_buffer, but it* takes an sgl instead of u8 * buf.*@a: a multi precision integer*@sgl: scatterlist to write to. Needs to be at least
mpi_read_raw_from_sglmpi_read_raw_from_sgl() - Function allocates an MPI and populates it with* data from the sgl* This function works in the same way as the mpi_read_raw_data, but it* takes an sgl instead of void * buffer. i.e. it allocates