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52ef2743f1
Simplify code by joining tcmu_cmd_get_data_length() and tcmu_cmd_get_block_cnt() into tcmu_cmd_set_block_cnts(). The new function sets tcmu_cmd->dbi_cnt and also the new field tcmu_cmd->dbi_bidi_cnt which is needed for further enhancements in following patches. Simplify some code by using tcmu_cmd->dbi(_bidi)_cnt instead of calculation from length. Please note: The calculation of the number of dbis needed for bidi was wrong. It was based on the length of the first bidi sg only. I changed it to correctly sum up entire length of all bidi sgs. Link: https://lore.kernel.org/r/20200910155041.17654-2-bstroesser@ts.fujitsu.com Acked-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>