diff options
Diffstat (limited to 'drivers/scsi/am53c974.c')
| -rw-r--r-- | drivers/scsi/am53c974.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/am53c974.c b/drivers/scsi/am53c974.c index a16c9cf0f0a2..a42e8db057a4 100644 --- a/drivers/scsi/am53c974.c +++ b/drivers/scsi/am53c974.c @@ -200,6 +200,12 @@ static void pci_esp_dma_drain(struct esp *esp) } pci_esp_write8(esp, ESP_DMA_CMD_DIR | ESP_DMA_CMD_IDLE, ESP_DMA_CMD); esp_dma_log("DMA blast done (%d tries, %d bytes left)\n", lim, resid); + /* BLAST residual handling is currently untested */ + if (WARN_ON_ONCE(resid == 1)) { + struct esp_cmd_entry *ent = esp->active_cmd; + + ent->flags |= ESP_CMD_FLAG_RESIDUAL; + } } static void pci_esp_dma_invalidate(struct esp *esp) |