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Steve Cornelius authored
Former versions of this (ARM) branch of this driver reworked the hardware- readable scatter/gather list to operate as a set of 32-bit integers, rather than a packed structure of smaller sizes, which cannot burst-read correctly on a little-endian platform. Integration of caamhash.c revealed subtle ways in which the ordering of items written to a hardware s/g list could create bugs, such as the "final" bit being written to an entry that would later be updated with a size, inadvertently erasing the bit (e.g. such as sg_to_sec4_sg_last() before sg_to_sec4_sg()). Since fields must be ORed in to operate correctly using any order of operations, changed allocations of the combination of extended descriptor structs + hardware scatterlists to use kzalloc() instead of kmalloc(), so as to ensure that residue data would not be ORed in with the correct data. Signed-off-by: Steve Cornelius <steve.cornelius@freescale.com> Signed-off-by: Terry Lv <r65388@freescale.com>
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