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scsi: NCR5380: Call scsi_set_resid() on command completion

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Most NCR5380 drivers calculate the residual for every data transfer.
(A few drivers just set it to zero.) Pass this quantity back to the scsi
mid-layer on command completion.

Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Ondrej Zary <linux@zary.sk>
Link: https://lore.kernel.org/r/1f26ead9dd0dc053fcd27979d69a7ca74b6589b4.1573875417.git.fthain@telegraphics.com.au
Reviewed-and-tested-by: Michael Schmitz <schmitzmic@gmail.com>
Tested-by: Ondrej Zary <linux@zary.sk>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Finn Thain 2019-11-16 14:36:57 +11:00 committed by Martin K. Petersen
parent aa5334c4f3
commit 350767f20b
1 changed files with 15 additions and 0 deletions
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15
drivers/scsi/NCR5380.c
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@ -172,6 +172,19 @@ static inline void advance_sg_buffer(struct scsi_cmnd *cmd)
}
}
static inline void set_resid_from_SCp(struct scsi_cmnd *cmd)
{
int resid = cmd->SCp.this_residual;
struct scatterlist *s = cmd->SCp.buffer;
if (s)
while (!sg_is_last(s)) {
s = sg_next(s);
resid += s->length;
}
scsi_set_resid(cmd, resid);
}
/**
* NCR5380_poll_politely2 - wait for two chip register values
* @hostdata: host private data
@ -1803,6 +1816,8 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
cmd->result |= cmd->SCp.Status;
cmd->result |= cmd->SCp.Message << 8;
set_resid_from_SCp(cmd);
if (cmd->cmnd[0] == REQUEST_SENSE)
complete_cmd(instance, cmd);
else {