[v3,14/42] esp: remove minlen restriction in handle_ti

Commit Message

Mark Cave-Ayland March 4, 2021, 10:10 p.m. UTC

The limiting of DMA transfers to the maximum size of the available data is already
handled by esp_do_dma() and do_dma_pdma_cb().

Signed-off-by: Mark Cave-Ayland <[e-mail]>
Reviewed-by: Philippe Mathieu-Daudé <[e-mail]>
Reviewed-by: Laurent Vivier <[e-mail]>
---
 hw/scsi/esp.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

Patch

diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c
index 92fea6a8c4..07d57cb791 100644
--- a/hw/scsi/esp.c
+++ b/hw/scsi/esp.c
@@ -552,7 +552,7 @@  void esp_transfer_data(SCSIRequest *req, uint32_t len)
 
 static void handle_ti(ESPState *s)
 {
-    uint32_t dmalen, minlen;
+    uint32_t dmalen;
 
     if (s->dma && !s->dma_enabled) {
         s->dma_cb = handle_ti;
@@ -560,16 +560,8 @@  static void handle_ti(ESPState *s)
     }
 
     dmalen = esp_get_tc(s);
-
-    if (s->do_cmd) {
-        minlen = (dmalen < ESP_CMDBUF_SZ) ? dmalen : ESP_CMDBUF_SZ;
-    } else if (s->ti_size < 0) {
-        minlen = (dmalen < -s->ti_size) ? dmalen : -s->ti_size;
-    } else {
-        minlen = (dmalen < s->ti_size) ? dmalen : s->ti_size;
-    }
-    trace_esp_handle_ti(minlen);
     if (s->dma) {
+        trace_esp_handle_ti(dmalen);
         s->rregs[ESP_RSTAT] &= ~STAT_TC;
         esp_do_dma(s);
     } else if (s->do_cmd) {