The current scsi_alloc_sgtables() documentation does not accurately explain what this function does. Hence improve the documentation of this function. Cc: Christoph Hellwig <hch@xxxxxx> Cc: Johannes Thumshirn <johannes.thumshirn@xxxxxxx> Cc: Hannes Reinecke <hare@xxxxxxx> Cc: Daniel Wagner <dwagner@xxxxxxx> Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx> --- drivers/scsi/scsi_lib.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 66e670aedd4c..985ed427445f 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -999,8 +999,11 @@ static inline bool scsi_cmd_needs_dma_drain(struct scsi_device *sdev, } /** - * scsi_alloc_sgtables - allocate S/G tables for a command - * @cmd: command descriptor we wish to initialize + * scsi_alloc_sgtables - Allocate and initialize data and integrity scatterlists + * @cmd: SCSI command data structure to initialize. + * + * Initializes @cmd->sdb and also @cmd->prot_sdb if data integrity is enabled + * for @cmd. * * Returns: * * BLK_STS_OK - on success
