From: Suraj Upadhyay <usuraj35@gmail.com>
To: gregkh@linuxfoundation.org, abbotti@mev.co.uk,
hsweeten@visionengravers.com
Cc: linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org,
kernel-janitors@vger.kernel.org
Subject: [PATCH] staging: comedi: s626: Remove pci-dma-compat wrapper APIs.
Date: Sat, 11 Jul 2020 18:05:33 +0530 [thread overview]
Message-ID: <20200711123533.GA15038@blackclown> (raw)
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The legacy API wrappers in include/linux/pci-dma-compat.h
should go away as it creates unnecessary midlayering
for include/linux/dma-mapping.h APIs, instead use dma-mapping.h
APIs directly.
The patch has been generated with the coccinelle script below
and 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_ATOMIC)
@@ expression E1, E2, E3; @@
- pci_zalloc_consistent(E1, E2, E3)
+ dma_alloc_coherent(&E1->dev, E2, E3, GFP_ATOMIC)
@@ 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, (enum dma_data_direction)E4)
@@ expression E1, E2, E3, E4; @@
- pci_unmap_single(E1, E2, E3, E4)
+ dma_unmap_single(&E1->dev, E2, E3, (enum dma_data_direction)E4)
@@ expression E1, E2, E3, E4, E5; @@
- pci_map_page(E1, E2, E3, E4, E5)
+ dma_map_page(&E1->dev, E2, E3, E4, (enum dma_data_direction)E5)
@@ expression E1, E2, E3, E4; @@
- pci_unmap_page(E1, E2, E3, E4)
+ dma_unmap_page(&E1->dev, E2, E3, (enum dma_data_direction)E4)
@@ expression E1, E2, E3, E4; @@
- pci_map_sg(E1, E2, E3, E4)
+ dma_map_sg(&E1->dev, E2, E3, (enum dma_data_direction)E4)
@@ expression E1, E2, E3, E4; @@
- pci_unmap_sg(E1, E2, E3, E4)
+ dma_unmap_sg(&E1->dev, E2, E3, (enum dma_data_direction)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, (enum dma_data_direction)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, (enum dma_data_direction)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, (enum dma_data_direction)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, (enum dma_data_direction)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)
Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
---
This change is proposed by Christoph Hellwig <hch@infradead.org>
in the post https://marc.info/?l=kernel-janitors&m=158745678307186&w=4
on kernel-janitors Mailing List.
drivers/staging/comedi/drivers/s626.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 084a8e7b9fc2..c159416662fd 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -2130,13 +2130,15 @@ static int s626_allocate_dma_buffers(struct comedi_device *dev)
void *addr;
dma_addr_t appdma;
- addr = pci_alloc_consistent(pcidev, S626_DMABUF_SIZE, &appdma);
+ addr = dma_alloc_coherent(&pcidev->dev, S626_DMABUF_SIZE, &appdma,
+ GFP_ATOMIC);
if (!addr)
return -ENOMEM;
devpriv->ana_buf.logical_base = addr;
devpriv->ana_buf.physical_base = appdma;
- addr = pci_alloc_consistent(pcidev, S626_DMABUF_SIZE, &appdma);
+ addr = dma_alloc_coherent(&pcidev->dev, S626_DMABUF_SIZE, &appdma,
+ GFP_ATOMIC);
if (!addr)
return -ENOMEM;
devpriv->rps_buf.logical_base = addr;
@@ -2154,13 +2156,13 @@ static void s626_free_dma_buffers(struct comedi_device *dev)
return;
if (devpriv->rps_buf.logical_base)
- pci_free_consistent(pcidev, S626_DMABUF_SIZE,
- devpriv->rps_buf.logical_base,
- devpriv->rps_buf.physical_base);
+ dma_free_coherent(&pcidev->dev, S626_DMABUF_SIZE,
+ devpriv->rps_buf.logical_base,
+ devpriv->rps_buf.physical_base);
if (devpriv->ana_buf.logical_base)
- pci_free_consistent(pcidev, S626_DMABUF_SIZE,
- devpriv->ana_buf.logical_base,
- devpriv->ana_buf.physical_base);
+ dma_free_coherent(&pcidev->dev, S626_DMABUF_SIZE,
+ devpriv->ana_buf.logical_base,
+ devpriv->ana_buf.physical_base);
}
static int s626_initialize(struct comedi_device *dev)
--
2.17.1
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next reply other threads:[~2020-07-11 12:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-11 12:35 Suraj Upadhyay [this message]
2020-07-11 13:38 ` [PATCH] staging: comedi: s626: Remove pci-dma-compat wrapper APIs Christophe JAILLET
2020-07-13 13:48 ` Ian Abbott
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