linux-kernel - [PATCH] staging: qlge: Remove pci-dma-compat wrapper APIs.

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Message-ID: <20200711124633.GA16459@blackclown>
Date:   Sat, 11 Jul 2020 18:16:33 +0530
From:   Suraj Upadhyay <usuraj35@...il.com>
To:     manishrc@...vell.com, GR-Linux-NIC-Dev@...vell.com,
        gregkh@...uxfoundation.org
Cc:     netdev@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH] staging: qlge: Remove pci-dma-compat wrapper APIs.

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@...il.com>
---
	This change is proposed by Christoph Hellwig <hch@...radead.org>
        in the post https://marc.info/?l=kernel-janitors&m=158745678307186&w=4
        on kernel-janitors Mailing List.

 drivers/staging/qlge/qlge_mpi.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/qlge/qlge_mpi.c b/drivers/staging/qlge/qlge_mpi.c
index fa178fc642a6..16a9bf818346 100644
--- a/drivers/staging/qlge/qlge_mpi.c
+++ b/drivers/staging/qlge/qlge_mpi.c
@@ -788,8 +788,9 @@ int ql_dump_risc_ram_area(struct ql_adapter *qdev, void *buf,
 	char *my_buf;
 	dma_addr_t buf_dma;
 
-	my_buf = pci_alloc_consistent(qdev->pdev, word_count * sizeof(u32),
-				      &buf_dma);
+	my_buf = dma_alloc_coherent(&qdev->pdev->dev,
+				    word_count * sizeof(u32), &buf_dma,
+				    GFP_ATOMIC);
 	if (!my_buf)
 		return -EIO;
 
@@ -797,8 +798,8 @@ int ql_dump_risc_ram_area(struct ql_adapter *qdev, void *buf,
 	if (!status)
 		memcpy(buf, my_buf, word_count * sizeof(u32));
 
-	pci_free_consistent(qdev->pdev, word_count * sizeof(u32), my_buf,
-			    buf_dma);
+	dma_free_coherent(&qdev->pdev->dev, word_count * sizeof(u32), my_buf,
+			  buf_dma);
 	return status;
 }
 
-- 
2.17.1


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