diff mbox series

net: wwan: iosm: switch from 'pci_' to 'dma_' API

Message ID a0a70eb0a65f16d870ecf2a14d7a8e931bc63d2e.1629579202.git.christophe.jaillet@wanadoo.fr (mailing list archive)
State Accepted
Commit 44ee76581dec205dcc7b30b4349538706b2a81ea
Delegated to: Netdev Maintainers
Headers show
Series net: wwan: iosm: switch from 'pci_' to 'dma_' API | expand

Checks

Context Check Description
netdev/cover_letter success Link
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netdev/patch_count success Link
netdev/tree_selection success Guessed tree name to be net-next
netdev/subject_prefix warning Target tree name not specified in the subject
netdev/cc_maintainers success CCed 8 of 8 maintainers
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch warning WARNING: line length of 81 exceeds 80 columns
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link

Commit Message

Christophe JAILLET Aug. 21, 2021, 8:54 p.m. UTC
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.

'ipc_protocol_init()' can use GFP_KERNEL, because this flag is already used
by a 'kzalloc()' call a few lines above.

'ipc_protocol_msg_prepipe_open()' must use GFP_ATOMIC, because this flag is
already used by a 'kcalloc()' call a few lines above.

@@ @@
-    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>
---
If needed, see post from Christoph Hellwig on the kernel-janitors ML:
   https://marc.info/?l=kernel-janitors&m=158745678307186&w=4
---
 drivers/net/wwan/iosm/iosm_ipc_protocol.c     | 10 +++++-----
 drivers/net/wwan/iosm/iosm_ipc_protocol_ops.c | 13 ++++++-------
 2 files changed, 11 insertions(+), 12 deletions(-)

Comments

patchwork-bot+netdevbpf@kernel.org Aug. 23, 2021, 11 a.m. UTC | #1
Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Sat, 21 Aug 2021 22:54:57 +0200 you wrote:
> 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.
> 
> 'ipc_protocol_init()' can use GFP_KERNEL, because this flag is already used
> by a 'kzalloc()' call a few lines above.
> 
> [...]

Here is the summary with links:
  - net: wwan: iosm: switch from 'pci_' to 'dma_' API
    https://git.kernel.org/netdev/net-next/c/44ee76581dec

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
diff mbox series

Patch

diff --git a/drivers/net/wwan/iosm/iosm_ipc_protocol.c b/drivers/net/wwan/iosm/iosm_ipc_protocol.c
index 834d8b146a94..63fc7012f09f 100644
--- a/drivers/net/wwan/iosm/iosm_ipc_protocol.c
+++ b/drivers/net/wwan/iosm/iosm_ipc_protocol.c
@@ -239,9 +239,9 @@  struct iosm_protocol *ipc_protocol_init(struct iosm_imem *ipc_imem)
 	ipc_protocol->old_msg_tail = 0;
 
 	ipc_protocol->p_ap_shm =
-		pci_alloc_consistent(ipc_protocol->pcie->pci,
-				     sizeof(*ipc_protocol->p_ap_shm),
-				     &ipc_protocol->phy_ap_shm);
+		dma_alloc_coherent(&ipc_protocol->pcie->pci->dev,
+				   sizeof(*ipc_protocol->p_ap_shm),
+				   &ipc_protocol->phy_ap_shm, GFP_KERNEL);
 
 	if (!ipc_protocol->p_ap_shm) {
 		dev_err(ipc_protocol->dev, "pci shm alloc error");
@@ -275,8 +275,8 @@  struct iosm_protocol *ipc_protocol_init(struct iosm_imem *ipc_imem)
 
 void ipc_protocol_deinit(struct iosm_protocol *proto)
 {
-	pci_free_consistent(proto->pcie->pci, sizeof(*proto->p_ap_shm),
-			    proto->p_ap_shm, proto->phy_ap_shm);
+	dma_free_coherent(&proto->pcie->pci->dev, sizeof(*proto->p_ap_shm),
+			  proto->p_ap_shm, proto->phy_ap_shm);
 
 	ipc_pm_deinit(proto);
 	kfree(proto);
diff --git a/drivers/net/wwan/iosm/iosm_ipc_protocol_ops.c b/drivers/net/wwan/iosm/iosm_ipc_protocol_ops.c
index 35d590743d3a..c6b032f95d2e 100644
--- a/drivers/net/wwan/iosm/iosm_ipc_protocol_ops.c
+++ b/drivers/net/wwan/iosm/iosm_ipc_protocol_ops.c
@@ -74,9 +74,9 @@  static int ipc_protocol_msg_prepipe_open(struct iosm_protocol *ipc_protocol,
 		return -ENOMEM;
 
 	/* Allocate the transfer descriptors for the pipe. */
-	tdr = pci_alloc_consistent(ipc_protocol->pcie->pci,
-				   pipe->nr_of_entries * sizeof(*tdr),
-				   &pipe->phy_tdr_start);
+	tdr = dma_alloc_coherent(&ipc_protocol->pcie->pci->dev,
+				 pipe->nr_of_entries * sizeof(*tdr),
+				 &pipe->phy_tdr_start, GFP_ATOMIC);
 	if (!tdr) {
 		kfree(skbr);
 		dev_err(ipc_protocol->dev, "tdr alloc error");
@@ -492,10 +492,9 @@  void ipc_protocol_pipe_cleanup(struct iosm_protocol *ipc_protocol,
 
 	/* Free and reset the td and skbuf circular buffers. kfree is save! */
 	if (pipe->tdr_start) {
-		pci_free_consistent(ipc_protocol->pcie->pci,
-				    sizeof(*pipe->tdr_start) *
-					    pipe->nr_of_entries,
-				    pipe->tdr_start, pipe->phy_tdr_start);
+		dma_free_coherent(&ipc_protocol->pcie->pci->dev,
+				  sizeof(*pipe->tdr_start) * pipe->nr_of_entries,
+				  pipe->tdr_start, pipe->phy_tdr_start);
 
 		pipe->tdr_start = NULL;
 	}