Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-06 05:02:31 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

scsi: message: mptfc: Switch from pci_ to dma_ API

Browse Source 
The wrappers in include/linux/pci-dma-compat.h should go away.

The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.  It has been compile
tested.

When memory is allocated in 'mptfc_GetFcDevPage0()' GFP_KERNEL can be used
because it is already used in this function and no lock is acquired in the
between.

When memory is allocated in 'mptfc_GetFcPortPage0()' and
'mptfc_GetFcPortPage1()' GFP_KERNEL can be used because they already call
'mpt_config()' which has an explicit 'might_sleep()'.

While at it, also remove some useless casting.

@@ @@
-    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_dma_mask(e1, e2)
+    dma_set_mask(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_consistent_dma_mask(e1, e2)
+    dma_set_coherent_mask(&e1->dev, e2)

Link: https://lore.kernel.org/r/95afc589713ade2110e7812159ce3e9ab453ec18.1623568121.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christophe JAILLET 2021-06-13 09:10:16 +02:00 committed by Martin K. Petersen
parent c7fa2c855e
commit 1897c5c759
1 changed files with 18 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
drivers/message/fusion/mptfc.c
View File

@ -331,8 +331,8 @@ mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
break;
data_sz = hdr.PageLength * 4;
ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz,
&page0_dma);
ppage0_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz,
&page0_dma, GFP_KERNEL);
rc = -ENOMEM;
if (!ppage0_alloc)
break;
@ -367,8 +367,8 @@ mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port,
*p_p0 = *ppage0_alloc; /* save data */
*p_pp0++ = p_p0++; /* save addr */
}
pci_free_consistent(ioc->pcidev, data_sz,
(u8 *) ppage0_alloc, page0_dma);
dma_free_coherent(&ioc->pcidev->dev, data_sz,
ppage0_alloc, page0_dma);
if (rc != 0)
break;
@ -763,7 +763,8 @@ mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
data_sz = hdr.PageLength * 4;
rc = -ENOMEM;
ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma);
ppage0_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz,
&page0_dma, GFP_KERNEL);
if (ppage0_alloc) {
try_again:
@ -817,7 +818,8 @@ mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
mptfc_display_port_link_speed(ioc, portnum, pp0dest);
}
pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
dma_free_coherent(&ioc->pcidev->dev, data_sz, ppage0_alloc,
page0_dma);
}
return rc;
@ -904,9 +906,8 @@ mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
if (data_sz < sizeof(FCPortPage1_t))
data_sz = sizeof(FCPortPage1_t);
page1_alloc = pci_alloc_consistent(ioc->pcidev,
data_sz,
&page1_dma);
page1_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz,
&page1_dma, GFP_KERNEL);
if (!page1_alloc)
return -ENOMEM;
}
@ -916,8 +917,8 @@ mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz;
if (hdr.PageLength * 4 > data_sz) {
ioc->fc_data.fc_port_page1[portnum].data = NULL;
pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
page1_alloc, page1_dma);
dma_free_coherent(&ioc->pcidev->dev, data_sz,
page1_alloc, page1_dma);
goto start_over;
}
}
@ -932,8 +933,8 @@ mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum)
}
else {
ioc->fc_data.fc_port_page1[portnum].data = NULL;
pci_free_consistent(ioc->pcidev, data_sz, (u8 *)
page1_alloc, page1_dma);
dma_free_coherent(&ioc->pcidev->dev, data_sz, page1_alloc,
page1_dma);
}
return rc;
@ -1514,10 +1515,10 @@ static void mptfc_remove(struct pci_dev *pdev)
for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) {
if (ioc->fc_data.fc_port_page1[ii].data) {
pci_free_consistent(ioc->pcidev,
ioc->fc_data.fc_port_page1[ii].pg_sz,
(u8 *) ioc->fc_data.fc_port_page1[ii].data,
ioc->fc_data.fc_port_page1[ii].dma);
dma_free_coherent(&ioc->pcidev->dev,
ioc->fc_data.fc_port_page1[ii].pg_sz,
ioc->fc_data.fc_port_page1[ii].data,
ioc->fc_data.fc_port_page1[ii].dma);
ioc->fc_data.fc_port_page1[ii].data = NULL;
}
}