scsi: megaraid: Remove pci-dma-compat wrapper API

The legacy API wrappers in include/linux/pci-dma-compat.h should go away as
they create unnecessary midlayering for include/linux/dma-mapping.h API.
Instead use dma-mapping.h API directly.

The patch has been generated with the coccinelle script below.  And has
been hand modified to replace each GFP_ with a correct flag depending upon
the context.  Compile tested.

@@@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL

@@@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE

@@@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE

@@@@
- PCI_DMA_NONE
+ DMA_NONE

@@ expression E1, E2, E3; @@
- pci_alloc_consistent(E1, E2, E3)
+ dma_alloc_coherent(&E1->dev, E2, E3, GFP_)

@@ expression E1, E2, E3; @@
- pci_zalloc_consistent(E1, E2, E3)
+ dma_alloc_coherent(&E1->dev, E2, E3, GFP_)

@@ expression E1, E2, E3, E4; @@
- pci_free_consistent(E1, E2, E3, E4)
+ dma_free_coherent(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_map_single(E1, E2, E3, E4)
+ dma_map_single(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_single(E1, E2, E3, E4)
+ dma_unmap_single(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4, E5; @@
- pci_map_page(E1, E2, E3, E4, E5)
+ dma_map_page(&E1->dev, E2, E3, E4, E5)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_page(E1, E2, E3, E4)
+ dma_unmap_page(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_map_sg(E1, E2, E3, E4)
+ dma_map_sg(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_sg(E1, E2, E3, E4)
+ dma_unmap_sg(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_single_for_cpu(E1, E2, E3, E4)
+ dma_sync_single_for_cpu(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_single_for_device(E1, E2, E3, E4)
+ dma_sync_single_for_device(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_sg_for_cpu(E1, E2, E3, E4)
+ dma_sync_sg_for_cpu(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_sg_for_device(E1, E2, E3, E4)
+ dma_sync_sg_for_device(&E1->dev, E2, E3, E4)

@@ expression E1, E2; @@
- pci_dma_mapping_error(E1, E2)
+ dma_mapping_error(&E1->dev, E2)

@@ expression E1, E2; @@
- pci_set_consistent_dma_mask(E1, E2)
+ dma_set_coherent_mask(&E1->dev, E2)

@@ expression E1, E2; @@
- pci_set_dma_mask(E1, E2)
+ dma_set_mask(&E1->dev, E2)

Link: https://lore.kernel.org/r/635cfc08b83a041708ee6afbc430087416f2605c.1596045683.git.usuraj35@gmail.comSigned-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/megaraid.c

@@ -133,8 +133,10 @@ mega_setup_mailbox(adapter_t *adapter)
 {
 	unsigned long	align;
 
-	adapter->una_mbox64 = pci_alloc_consistent(adapter->dev,
-			sizeof(mbox64_t), &adapter->una_mbox64_dma);
+	adapter->una_mbox64 = dma_alloc_coherent(&adapter->dev->dev,
+						 sizeof(mbox64_t),
+						 &adapter->una_mbox64_dma,
+						 GFP_KERNEL);
 
 	if( !adapter->una_mbox64 ) return -1;
 		
@@ -222,8 +224,9 @@ mega_query_adapter(adapter_t *adapter)
 		mraid_inquiry		*inq;
 		dma_addr_t		dma_handle;
 
-		ext_inq = pci_alloc_consistent(adapter->dev,
-				sizeof(mraid_ext_inquiry), &dma_handle);
+		ext_inq = dma_alloc_coherent(&adapter->dev->dev,
+					     sizeof(mraid_ext_inquiry),
+					     &dma_handle, GFP_KERNEL);
 
 		if( ext_inq == NULL ) return -1;
 
@@ -243,8 +246,9 @@ mega_query_adapter(adapter_t *adapter)
 		mega_8_to_40ld(inq, inquiry3,
 				(mega_product_info *)&adapter->product_info);
 
-		pci_free_consistent(adapter->dev, sizeof(mraid_ext_inquiry),
-				ext_inq, dma_handle);
+		dma_free_coherent(&adapter->dev->dev,
+				  sizeof(mraid_ext_inquiry), ext_inq,
+				  dma_handle);
 
 	} else {		/*adapter supports 40ld */
 		adapter->flag |= BOARD_40LD;
@@ -253,9 +257,10 @@ mega_query_adapter(adapter_t *adapter)
 		 * get product_info, which is static information and will be
 		 * unchanged
 		 */
-		prod_info_dma_handle = pci_map_single(adapter->dev, (void *)
-				&adapter->product_info,
-				sizeof(mega_product_info), PCI_DMA_FROMDEVICE);
+		prod_info_dma_handle = dma_map_single(&adapter->dev->dev,
+						      (void *)&adapter->product_info,
+						      sizeof(mega_product_info),
+						      DMA_FROM_DEVICE);
 
 		mbox->m_out.xferaddr = prod_info_dma_handle;
 
@@ -267,8 +272,8 @@ mega_query_adapter(adapter_t *adapter)
 				"Product_info cmd failed with error: %d\n",
 				retval);
 
-		pci_unmap_single(adapter->dev, prod_info_dma_handle,
-				sizeof(mega_product_info), PCI_DMA_FROMDEVICE);
+		dma_unmap_single(&adapter->dev->dev, prod_info_dma_handle,
+				 sizeof(mega_product_info), DMA_FROM_DEVICE);
 	}
 
 
@@ -645,7 +650,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
 			scb->raw_mbox[2] = MEGA_RESERVATION_STATUS;
 			scb->raw_mbox[3] = ldrv_num;
 
-			scb->dma_direction = PCI_DMA_NONE;
+			scb->dma_direction = DMA_NONE;
 
 			return scb;
 #else
@@ -709,7 +714,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
 				mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU;
 			}
 
-			scb->dma_direction = PCI_DMA_FROMDEVICE;
+			scb->dma_direction = DMA_FROM_DEVICE;
 
 			pthru->numsgelements = mega_build_sglist(adapter, scb,
 				&pthru->dataxferaddr, &pthru->dataxferlen);
@@ -839,10 +844,10 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
 			 * If it is a read command
 			 */
 			if( (*cmd->cmnd & 0x0F) == 0x08 ) {
-				scb->dma_direction = PCI_DMA_FROMDEVICE;
+				scb->dma_direction = DMA_FROM_DEVICE;
 			}
 			else {
-				scb->dma_direction = PCI_DMA_TODEVICE;
+				scb->dma_direction = DMA_TO_DEVICE;
 			}
 
 			/* Calculate Scatter-Gather info */
@@ -877,7 +882,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy)
 
 			scb->raw_mbox[3] = ldrv_num;
 
-			scb->dma_direction = PCI_DMA_NONE;
+			scb->dma_direction = DMA_NONE;
 
 			return scb;
 #endif
@@ -971,7 +976,7 @@ mega_prepare_passthru(adapter_t *adapter, scb_t *scb, struct scsi_cmnd *cmd,
 	memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len);
 
 	/* Not sure about the direction */
-	scb->dma_direction = PCI_DMA_BIDIRECTIONAL;
+	scb->dma_direction = DMA_BIDIRECTIONAL;
 
 	/* Special Code for Handling READ_CAPA/ INQ using bounce buffers */
 	switch (cmd->cmnd[0]) {
@@ -1035,7 +1040,7 @@ mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb,
 	memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len);
 
 	/* Not sure about the direction */
-	scb->dma_direction = PCI_DMA_BIDIRECTIONAL;
+	scb->dma_direction = DMA_BIDIRECTIONAL;
 
 	switch(cmd->cmnd[0]) {
 	case INQUIRY:
@@ -1813,23 +1818,23 @@ mega_free_sgl(adapter_t *adapter)
 		scb = &adapter->scb_list[i];
 
 		if( scb->sgl64 ) {
-			pci_free_consistent(adapter->dev,
+			dma_free_coherent(&adapter->dev->dev,
 					  sizeof(mega_sgl64) * adapter->sglen,
-				scb->sgl64,
-				scb->sgl_dma_addr);
+					  scb->sgl64, scb->sgl_dma_addr);
 
 			scb->sgl64 = NULL;
 		}
 
 		if( scb->pthru ) {
-			pci_free_consistent(adapter->dev, sizeof(mega_passthru),
-				scb->pthru, scb->pthru_dma_addr);
+			dma_free_coherent(&adapter->dev->dev,
+					  sizeof(mega_passthru), scb->pthru,
+					  scb->pthru_dma_addr);
 
 			scb->pthru = NULL;
 		}
 
 		if( scb->epthru ) {
-			pci_free_consistent(adapter->dev,
+			dma_free_coherent(&adapter->dev->dev,
 					  sizeof(mega_ext_passthru),
 					  scb->epthru, scb->epthru_dma_addr);
 
@@ -2004,7 +2009,7 @@ make_local_pdev(adapter_t *adapter, struct pci_dev **pdev)
 
 	memcpy(*pdev, adapter->dev, sizeof(struct pci_dev));
 
-	if( pci_set_dma_mask(*pdev, DMA_BIT_MASK(32)) != 0 ) {
+	if (dma_set_mask(&(*pdev)->dev, DMA_BIT_MASK(32)) != 0) {
 		kfree(*pdev);
 		return -1;
 	}
@@ -2028,14 +2033,16 @@ free_local_pdev(struct pci_dev *pdev)
 static inline void *
 mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev)
 {
-	return pci_alloc_consistent(pdev, sizeof(mega_inquiry3), dma_handle);
+	return dma_alloc_coherent(&pdev->dev, sizeof(mega_inquiry3),
+				  dma_handle, GFP_KERNEL);
 }
 
 
 static inline void
 mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev)
 {
-	pci_free_consistent(pdev, sizeof(mega_inquiry3), inquiry, dma_handle);
+	dma_free_coherent(&pdev->dev, sizeof(mega_inquiry3), inquiry,
+			  dma_handle);
 }
 
 
@@ -2349,7 +2356,8 @@ proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel)
 	}
 
 
-	scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle);
+	scsi_inq = dma_alloc_coherent(&pdev->dev, 256, &scsi_inq_dma_handle,
+				      GFP_KERNEL);
 	if( scsi_inq == NULL ) {
 		seq_puts(m, "memory not available for scsi inq.\n");
 		goto free_inquiry;
@@ -2422,7 +2430,7 @@ proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel)
 	}
 
 free_pci:
-	pci_free_consistent(pdev, 256, scsi_inq, scsi_inq_dma_handle);
+	dma_free_coherent(&pdev->dev, 256, scsi_inq, scsi_inq_dma_handle);
 free_inquiry:
 	mega_free_inquiry(inquiry, dma_handle, pdev);
 free_pdev:
@@ -2542,8 +2550,8 @@ proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end )
 			raid_inq.logdrv_info.num_ldrv;
 	}
 
-	disk_array = pci_alloc_consistent(pdev, array_sz,
-			&disk_array_dma_handle);
+	disk_array = dma_alloc_coherent(&pdev->dev, array_sz,
+					&disk_array_dma_handle, GFP_KERNEL);
 
 	if( disk_array == NULL ) {
 		seq_puts(m, "memory not available.\n");
@@ -2662,7 +2670,7 @@ proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end )
 	}
 
 free_pci:
-	pci_free_consistent(pdev, array_sz, disk_array,
+	dma_free_coherent(&pdev->dev, array_sz, disk_array,
 			  disk_array_dma_handle);
 free_inquiry:
 	mega_free_inquiry(inquiry, dma_handle, pdev);
@@ -2881,9 +2889,9 @@ mega_init_scb(adapter_t *adapter)
 
 		scb->idx = i;
 
-		scb->sgl64 = pci_alloc_consistent(adapter->dev,
+		scb->sgl64 = dma_alloc_coherent(&adapter->dev->dev,
 						sizeof(mega_sgl64) * adapter->sglen,
-				&scb->sgl_dma_addr);
+						&scb->sgl_dma_addr, GFP_KERNEL);
 
 		scb->sgl = (mega_sglist *)scb->sgl64;
 
@@ -2893,9 +2901,9 @@ mega_init_scb(adapter_t *adapter)
 			return -1;
 		}
 
-		scb->pthru = pci_alloc_consistent(adapter->dev,
+		scb->pthru = dma_alloc_coherent(&adapter->dev->dev,
 						sizeof(mega_passthru),
-				&scb->pthru_dma_addr);
+						&scb->pthru_dma_addr, GFP_KERNEL);
 
 		if( !scb->pthru ) {
 			dev_warn(&adapter->dev->dev, "RAID: Can't allocate passthru\n");
@@ -2903,9 +2911,9 @@ mega_init_scb(adapter_t *adapter)
 			return -1;
 		}
 
-		scb->epthru = pci_alloc_consistent(adapter->dev,
+		scb->epthru = dma_alloc_coherent(&adapter->dev->dev,
 						 sizeof(mega_ext_passthru),
-				&scb->epthru_dma_addr);
+						 &scb->epthru_dma_addr, GFP_KERNEL);
 
 		if( !scb->epthru ) {
 			dev_warn(&adapter->dev->dev,
@@ -3145,9 +3153,9 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 		if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) {
 			/* Passthru commands */
 
-			pthru = pci_alloc_consistent(pdev,
+			pthru = dma_alloc_coherent(&pdev->dev,
 						   sizeof(mega_passthru),
-					&pthru_dma_hndl);
+						   &pthru_dma_hndl, GFP_KERNEL);
 
 			if( pthru == NULL ) {
 				free_local_pdev(pdev);
@@ -3165,9 +3173,9 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 			if( copy_from_user(pthru, upthru,
 						sizeof(mega_passthru)) ) {
 
-				pci_free_consistent(pdev,
-						sizeof(mega_passthru), pthru,
-						pthru_dma_hndl);
+				dma_free_coherent(&pdev->dev,
+						  sizeof(mega_passthru),
+						  pthru, pthru_dma_hndl);
 
 				free_local_pdev(pdev);
 
@@ -3178,12 +3186,13 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 			 * Is there a data transfer
 			 */
 			if( pthru->dataxferlen ) {
-				data = pci_alloc_consistent(pdev,
+				data = dma_alloc_coherent(&pdev->dev,
 							  pthru->dataxferlen,
-						&data_dma_hndl);
+							  &data_dma_hndl,
+							  GFP_KERNEL);
 
 				if( data == NULL ) {
-					pci_free_consistent(pdev,
+					dma_free_coherent(&pdev->dev,
 							  sizeof(mega_passthru),
 							  pthru,
 							  pthru_dma_hndl);
@@ -3251,12 +3260,12 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 
 freemem_and_return:
 			if( pthru->dataxferlen ) {
-				pci_free_consistent(pdev,
+				dma_free_coherent(&pdev->dev,
 						  pthru->dataxferlen, data,
 						  data_dma_hndl);
 			}
 
-			pci_free_consistent(pdev, sizeof(mega_passthru),
+			dma_free_coherent(&pdev->dev, sizeof(mega_passthru),
 					  pthru, pthru_dma_hndl);
 
 			free_local_pdev(pdev);
@@ -3270,8 +3279,10 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 			 * Is there a data transfer
 			 */
 			if( uioc.xferlen ) {
-				data = pci_alloc_consistent(pdev,
-						uioc.xferlen, &data_dma_hndl);
+				data = dma_alloc_coherent(&pdev->dev,
+							  uioc.xferlen,
+							  &data_dma_hndl,
+							  GFP_KERNEL);
 
 				if( data == NULL ) {
 					free_local_pdev(pdev);
@@ -3291,9 +3302,9 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 				if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr,
 							uioc.xferlen) ) {
 
-					pci_free_consistent(pdev,
-							uioc.xferlen,
-							data, data_dma_hndl);
+					dma_free_coherent(&pdev->dev,
+							  uioc.xferlen, data,
+							  data_dma_hndl);
 
 					free_local_pdev(pdev);
 
@@ -3314,7 +3325,7 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 
 			if( rval ) {
 				if( uioc.xferlen ) {
-					pci_free_consistent(pdev,
+					dma_free_coherent(&pdev->dev,
 							  uioc.xferlen, data,
 							  data_dma_hndl);
 				}
@@ -3336,9 +3347,8 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 			}
 
 			if( uioc.xferlen ) {
-				pci_free_consistent(pdev,
-						uioc.xferlen, data,
-						data_dma_hndl);
+				dma_free_coherent(&pdev->dev, uioc.xferlen,
+						  data, data_dma_hndl);
 			}
 
 			free_local_pdev(pdev);
@@ -4004,8 +4014,8 @@ mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt,
 	 */
 	if( make_local_pdev(adapter, &pdev) != 0 ) return -1;
 
-	pthru = pci_alloc_consistent(pdev, sizeof(mega_passthru),
-			&pthru_dma_handle);
+	pthru = dma_alloc_coherent(&pdev->dev, sizeof(mega_passthru),
+				   &pthru_dma_handle, GFP_KERNEL);
 
 	if( pthru == NULL ) {
 		free_local_pdev(pdev);
@@ -4041,7 +4051,7 @@ mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt,
 
 	rval = mega_internal_command(adapter, &mc, pthru);
 
-	pci_free_consistent(pdev, sizeof(mega_passthru), pthru,
+	dma_free_coherent(&pdev->dev, sizeof(mega_passthru), pthru,
 			  pthru_dma_handle);
 
 	free_local_pdev(pdev);
@@ -4267,8 +4277,10 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	/*
 	 * Allocate buffer to issue internal commands.
 	 */
-	adapter->mega_buffer = pci_alloc_consistent(adapter->dev,
-		MEGA_BUFFER_SIZE, &adapter->buf_dma_handle);
+	adapter->mega_buffer = dma_alloc_coherent(&adapter->dev->dev,
+						  MEGA_BUFFER_SIZE,
+						  &adapter->buf_dma_handle,
+						  GFP_KERNEL);
 	if (!adapter->mega_buffer) {
 		dev_warn(&pdev->dev, "out of RAM\n");
 		goto out_host_put;
@@ -4427,10 +4439,10 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	/* Set the Mode of addressing to 64 bit if we can */
 	if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) {
-		pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+		dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
 		adapter->has_64bit_addr = 1;
 	} else  {
-		pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+		dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
 		adapter->has_64bit_addr = 0;
 	}
 		
@@ -4469,14 +4481,14 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	return 0;
 
  out_free_mbox:
-	pci_free_consistent(adapter->dev, sizeof(mbox64_t),
+	dma_free_coherent(&adapter->dev->dev, sizeof(mbox64_t),
 			  adapter->una_mbox64, adapter->una_mbox64_dma);
  out_free_irq:
 	free_irq(adapter->host->irq, adapter);
  out_free_scb_list:
 	kfree(adapter->scb_list);
  out_free_cmd_buffer:
-	pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE,
+	dma_free_coherent(&adapter->dev->dev, MEGA_BUFFER_SIZE,
 			  adapter->mega_buffer, adapter->buf_dma_handle);
  out_host_put:
 	scsi_host_put(host);
@@ -4551,10 +4563,10 @@ megaraid_remove_one(struct pci_dev *pdev)
 	sprintf(buf, "hba%d", adapter->host->host_no);
 	remove_proc_subtree(buf, mega_proc_dir_entry);
 
-	pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE,
+	dma_free_coherent(&adapter->dev->dev, MEGA_BUFFER_SIZE,
 			  adapter->mega_buffer, adapter->buf_dma_handle);
 	kfree(adapter->scb_list);
-	pci_free_consistent(adapter->dev, sizeof(mbox64_t),
+	dma_free_coherent(&adapter->dev->dev, sizeof(mbox64_t),
 			  adapter->una_mbox64, adapter->una_mbox64_dma);
 
 	scsi_host_put(host);