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airo: switch from 'pci_' to 'dma_' API

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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 'mpi_map_card()' GFP_KERNEL can be used because
this function is called from a probe or a module_init() function and no
spinlock is taken in the between.

The call chains are:
  airo_init_module				module_init function in 'airo.c'
or
  airo_probe				.probe function in 'airo_cs.c'
    --> airo_config

followed in both cases by:
      --> init_airo_card
        --> _init_airo_card
          --> mpi_map_card

@@
@@
-    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)

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200907201942.321568-1-christophe.jaillet@wanadoo.fr
This commit is contained in:
Christophe JAILLET 2020-09-07 22:19:42 +02:00 committed by Kalle Valo
parent d5f59c964e
commit ac4c323cbb
1 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/net/wireless/cisco/airo.c
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@ -2430,7 +2430,7 @@ void stop_airo_card(struct net_device *dev, int freeres)
iounmap(ai->pcimem); iounmap(ai->pcimem);
if (ai->pciaux) if (ai->pciaux)
iounmap(ai->pciaux); iounmap(ai->pciaux);
pci_free_consistent(ai->pci, PCI_SHARED_LEN, dma_free_coherent(&ai->pci->dev, PCI_SHARED_LEN,
ai->shared, ai->shared_dma); ai->shared, ai->shared_dma);
} }
} }
@ -2581,9 +2581,10 @@ static int mpi_map_card(struct airo_info *ai, struct pci_dev *pci)
} }
/* Reserve PKTSIZE for each fid and 2K for the Rids */ /* Reserve PKTSIZE for each fid and 2K for the Rids */
ai->shared = pci_alloc_consistent(pci, PCI_SHARED_LEN, &ai->shared_dma); ai->shared = dma_alloc_coherent(&pci->dev, PCI_SHARED_LEN,
&ai->shared_dma, GFP_KERNEL);
if (!ai->shared) { if (!ai->shared) {
airo_print_err("", "Couldn't alloc_consistent %d", airo_print_err("", "Couldn't alloc_coherent %d",
PCI_SHARED_LEN); PCI_SHARED_LEN);
goto free_auxmap; goto free_auxmap;
} }
@ -2643,7 +2644,8 @@ static int mpi_map_card(struct airo_info *ai, struct pci_dev *pci)
return 0; return 0;
free_shared: free_shared:
pci_free_consistent(pci, PCI_SHARED_LEN, ai->shared, ai->shared_dma); dma_free_coherent(&pci->dev, PCI_SHARED_LEN, ai->shared,
ai->shared_dma);
free_auxmap: free_auxmap:
iounmap(ai->pciaux); iounmap(ai->pciaux);
free_memmap: free_memmap:
@ -2930,7 +2932,8 @@ err_out_reg:
unregister_netdev(dev); unregister_netdev(dev);
err_out_map: err_out_map:
if (test_bit(FLAG_MPI,&ai->flags) && pci) { if (test_bit(FLAG_MPI,&ai->flags) && pci) {
pci_free_consistent(pci, PCI_SHARED_LEN, ai->shared, ai->shared_dma); dma_free_coherent(&pci->dev, PCI_SHARED_LEN, ai->shared,
ai->shared_dma);
iounmap(ai->pciaux); iounmap(ai->pciaux);
iounmap(ai->pcimem); iounmap(ai->pcimem);
mpi_unmap_card(ai->pci); mpi_unmap_card(ai->pci);