dma: Have dma_buf_read() / dma_buf_write() take a void pointer

DMA operations are run on any kind of buffer, not arrays of
uint8_t. Convert dma_buf_read/dma_buf_write functions to take
a void pointer argument and save us pointless casts to uint8_t *.

Remove this pointless casts in the megasas device model.

Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-9-philmd@redhat.com>

1 files changed, 11 insertions, 11 deletions

diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
index 14ec6d6..2dae33f 100644
--- a/hw/scsi/megasas.c
+++ b/hw/scsi/megasas.c
@@ -848,7 +848,7 @@ static int megasas_ctrl_get_info(MegasasState *s, MegasasCmd *cmd)
                                        MFI_INFO_PDMIX_SATA |
                                        MFI_INFO_PDMIX_LD);
 
-    cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
+    cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg);
     return MFI_STAT_OK;
 }
 
@@ -878,7 +878,7 @@ static int megasas_mfc_get_defaults(MegasasState *s, MegasasCmd *cmd)
     info.disable_preboot_cli = 1;
     info.cluster_disable = 1;
 
-    cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
+    cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg);
     return MFI_STAT_OK;
 }
 
@@ -899,7 +899,7 @@ static int megasas_dcmd_get_bios_info(MegasasState *s, MegasasCmd *cmd)
         info.expose_all_drives = 1;
     }
 
-    cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
+    cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg);
     return MFI_STAT_OK;
 }
 
@@ -910,7 +910,7 @@ static int megasas_dcmd_get_fw_time(MegasasState *s, MegasasCmd *cmd)
 
     fw_time = cpu_to_le64(megasas_fw_time());
 
-    cmd->iov_size -= dma_buf_read((uint8_t *)&fw_time, dcmd_size, &cmd->qsg);
+    cmd->iov_size -= dma_buf_read(&fw_time, dcmd_size, &cmd->qsg);
     return MFI_STAT_OK;
 }
 
@@ -937,7 +937,7 @@ static int megasas_event_info(MegasasState *s, MegasasCmd *cmd)
     info.shutdown_seq_num = cpu_to_le32(s->shutdown_event);
     info.boot_seq_num = cpu_to_le32(s->boot_event);
 
-    cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
+    cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg);
     return MFI_STAT_OK;
 }
 
@@ -1006,7 +1006,7 @@ static int megasas_dcmd_pd_get_list(MegasasState *s, MegasasCmd *cmd)
     info.size = cpu_to_le32(offset);
     info.count = cpu_to_le32(num_pd_disks);
 
-    cmd->iov_size -= dma_buf_read((uint8_t *)&info, offset, &cmd->qsg);
+    cmd->iov_size -= dma_buf_read(&info, offset, &cmd->qsg);
     return MFI_STAT_OK;
 }
 
@@ -1172,7 +1172,7 @@ static int megasas_dcmd_ld_get_list(MegasasState *s, MegasasCmd *cmd)
     info.ld_count = cpu_to_le32(num_ld_disks);
     trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks);
 
-    resid = dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
+    resid = dma_buf_read(&info, dcmd_size, &cmd->qsg);
     cmd->iov_size = dcmd_size - resid;
     return MFI_STAT_OK;
 }
@@ -1221,7 +1221,7 @@ static int megasas_dcmd_ld_list_query(MegasasState *s, MegasasCmd *cmd)
     info.size = dcmd_size;
     trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks);
 
-    resid = dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
+    resid = dma_buf_read(&info, dcmd_size, &cmd->qsg);
     cmd->iov_size = dcmd_size - resid;
     return MFI_STAT_OK;
 }
@@ -1390,7 +1390,7 @@ static int megasas_dcmd_cfg_read(MegasasState *s, MegasasCmd *cmd)
         ld_offset += sizeof(struct mfi_ld_config);
     }
 
-    cmd->iov_size -= dma_buf_read((uint8_t *)data, info->size, &cmd->qsg);
+    cmd->iov_size -= dma_buf_read(data, info->size, &cmd->qsg);
     return MFI_STAT_OK;
 }
 
@@ -1420,7 +1420,7 @@ static int megasas_dcmd_get_properties(MegasasState *s, MegasasCmd *cmd)
     info.ecc_bucket_leak_rate = cpu_to_le16(1440);
     info.expose_encl_devices = 1;
 
-    cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
+    cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg);
     return MFI_STAT_OK;
 }
 
@@ -1465,7 +1465,7 @@ static int megasas_dcmd_set_properties(MegasasState *s, MegasasCmd *cmd)
                                             dcmd_size);
         return MFI_STAT_INVALID_PARAMETER;
     }
-    dma_buf_write((uint8_t *)&info, dcmd_size, &cmd->qsg);
+    dma_buf_write(&info, dcmd_size, &cmd->qsg);
     trace_megasas_dcmd_unsupported(cmd->index, cmd->iov_size);
     return MFI_STAT_OK;
 }