Re: [PATCH v18 02/20] PCI: Rename PCI_EPC_IRQ_LEGACY to PCI_EPC_IRQ_INTX

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On 7/21/23 16:44, Yoshihiro Shimoda wrote:
> Using "INTx" instead of "legacy" is more specific. So, rename
> PCI_EPC_IRQ_LEGACY to PCI_EPC_IRQ_INTX.
> 
> Suggested-by: Bjorn Helgaas <helgaas@xxxxxxxxxx>
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
> Reviewed-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>
> Acked-by: Jesper Nilsson <jesper.nilsson@xxxxxxxx> # ARTPEC
> Reviewed-by: Serge Semin <fancer.lancer@xxxxxxxxx>

I would rather drop completely the PCI_EPC_IRQ_XXX enum and simply use the
PCI_IRQ_XXX macros used everywhere. Less definitions :)

See attached patch that I have in my queue (about to send that).

> ---
> This CC-list is for git send-email.
> 
> Cc: Tom Joseph <tjoseph@xxxxxxxxxxx>
> Cc: Vignesh Raghavendra <vigneshr@xxxxxx>
> Cc: Richard Zhu <hongxing.zhu@xxxxxxx>
> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
> Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> Cc: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
> Cc: Fabio Estevam <festevam@xxxxxxxxx>
> Cc: NXP Linux Team <linux-imx@xxxxxxx>
> Cc: Minghuan Lian <minghuan.Lian@xxxxxxx>
> Cc: Mingkai Hu <mingkai.hu@xxxxxxx>
> Cc: Roy Zang <roy.zang@xxxxxxx>
> Cc: Jingoo Han <jingoohan1@xxxxxxxxx>
> Cc: Srikanth Thokala <srikanth.thokala@xxxxxxxxx>
> Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
> Cc: Jonathan Hunter <jonathanh@xxxxxxxxxx>
> Cc: Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>
> Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
> Cc: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
> Cc: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
> Cc: Heiko Stuebner <heiko@xxxxxxxxx>
> Cc: Kishon Vijay Abraham I <kishon@xxxxxxxxxx>
> ---
>  drivers/pci/controller/cadence/pcie-cadence-ep.c  |  2 +-
>  drivers/pci/controller/dwc/pci-dra7xx.c           |  2 +-
>  drivers/pci/controller/dwc/pci-imx6.c             |  2 +-
>  drivers/pci/controller/dwc/pci-keystone.c         |  2 +-
>  drivers/pci/controller/dwc/pci-layerscape-ep.c    |  2 +-
>  drivers/pci/controller/dwc/pcie-artpec6.c         |  2 +-
>  drivers/pci/controller/dwc/pcie-designware-plat.c |  2 +-
>  drivers/pci/controller/dwc/pcie-keembay.c         |  2 +-
>  drivers/pci/controller/dwc/pcie-qcom-ep.c         |  2 +-
>  drivers/pci/controller/dwc/pcie-tegra194.c        |  2 +-
>  drivers/pci/controller/dwc/pcie-uniphier-ep.c     |  2 +-
>  drivers/pci/controller/pcie-rcar-ep.c             |  2 +-
>  drivers/pci/controller/pcie-rockchip-ep.c         |  2 +-
>  drivers/pci/endpoint/functions/pci-epf-test.c     | 10 +++++-----
>  include/linux/pci-epc.h                           |  4 ++--
>  15 files changed, 20 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/pci/controller/cadence/pcie-cadence-ep.c b/drivers/pci/controller/cadence/pcie-cadence-ep.c
> index b8b655d4047e..2af8eb4e6d91 100644
> --- a/drivers/pci/controller/cadence/pcie-cadence-ep.c
> +++ b/drivers/pci/controller/cadence/pcie-cadence-ep.c
> @@ -539,7 +539,7 @@ static int cdns_pcie_ep_raise_irq(struct pci_epc *epc, u8 fn, u8 vfn,
>  	struct device *dev = pcie->dev;
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		if (vfn > 0) {
>  			dev_err(dev, "Cannot raise legacy interrupts for VF\n");
>  			return -EINVAL;
> diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c
> index b445ffe95e3f..8767432dda5c 100644
> --- a/drivers/pci/controller/dwc/pci-dra7xx.c
> +++ b/drivers/pci/controller/dwc/pci-dra7xx.c
> @@ -410,7 +410,7 @@ static int dra7xx_pcie_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
>  	struct dra7xx_pcie *dra7xx = to_dra7xx_pcie(pci);
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		dra7xx_pcie_raise_legacy_irq(dra7xx);
>  		break;
>  	case PCI_EPC_IRQ_MSI:
> diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
> index 235ead4c807f..feadc88782a7 100644
> --- a/drivers/pci/controller/dwc/pci-imx6.c
> +++ b/drivers/pci/controller/dwc/pci-imx6.c
> @@ -1063,7 +1063,7 @@ static int imx6_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
>  	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		return dw_pcie_ep_raise_legacy_irq(ep, func_no);
>  	case PCI_EPC_IRQ_MSI:
>  		return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
> diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
> index 49aea6ce3e87..fce300673ea3 100644
> --- a/drivers/pci/controller/dwc/pci-keystone.c
> +++ b/drivers/pci/controller/dwc/pci-keystone.c
> @@ -907,7 +907,7 @@ static int ks_pcie_am654_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
>  	struct keystone_pcie *ks_pcie = to_keystone_pcie(pci);
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		ks_pcie_am654_raise_legacy_irq(ks_pcie);
>  		break;
>  	case PCI_EPC_IRQ_MSI:
> diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c
> index de4c1758a6c3..b2e14d64dba2 100644
> --- a/drivers/pci/controller/dwc/pci-layerscape-ep.c
> +++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c
> @@ -155,7 +155,7 @@ static int ls_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
>  	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		return dw_pcie_ep_raise_legacy_irq(ep, func_no);
>  	case PCI_EPC_IRQ_MSI:
>  		return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
> diff --git a/drivers/pci/controller/dwc/pcie-artpec6.c b/drivers/pci/controller/dwc/pcie-artpec6.c
> index 9b572a2b2c9a..cf92a11ede86 100644
> --- a/drivers/pci/controller/dwc/pcie-artpec6.c
> +++ b/drivers/pci/controller/dwc/pcie-artpec6.c
> @@ -357,7 +357,7 @@ static int artpec6_pcie_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
>  	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		dev_err(pci->dev, "EP cannot trigger legacy IRQs\n");
>  		return -EINVAL;
>  	case PCI_EPC_IRQ_MSI:
> diff --git a/drivers/pci/controller/dwc/pcie-designware-plat.c b/drivers/pci/controller/dwc/pcie-designware-plat.c
> index b625841e98aa..f72df38dd523 100644
> --- a/drivers/pci/controller/dwc/pcie-designware-plat.c
> +++ b/drivers/pci/controller/dwc/pcie-designware-plat.c
> @@ -48,7 +48,7 @@ static int dw_plat_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
>  	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		return dw_pcie_ep_raise_legacy_irq(ep, func_no);
>  	case PCI_EPC_IRQ_MSI:
>  		return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
> diff --git a/drivers/pci/controller/dwc/pcie-keembay.c b/drivers/pci/controller/dwc/pcie-keembay.c
> index 289bff99d762..62903fef343c 100644
> --- a/drivers/pci/controller/dwc/pcie-keembay.c
> +++ b/drivers/pci/controller/dwc/pcie-keembay.c
> @@ -295,7 +295,7 @@ static int keembay_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
>  	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		/* Legacy interrupts are not supported in Keem Bay */
>  		dev_err(pci->dev, "Legacy IRQ is not supported\n");
>  		return -EINVAL;
> diff --git a/drivers/pci/controller/dwc/pcie-qcom-ep.c b/drivers/pci/controller/dwc/pcie-qcom-ep.c
> index 267e1247d548..21e2ccc49219 100644
> --- a/drivers/pci/controller/dwc/pcie-qcom-ep.c
> +++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c
> @@ -660,7 +660,7 @@ static int qcom_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
>  	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		return dw_pcie_ep_raise_legacy_irq(ep, func_no);
>  	case PCI_EPC_IRQ_MSI:
>  		return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
> diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
> index 383ba71d1e8f..85cc64324efd 100644
> --- a/drivers/pci/controller/dwc/pcie-tegra194.c
> +++ b/drivers/pci/controller/dwc/pcie-tegra194.c
> @@ -1999,7 +1999,7 @@ static int tegra_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
>  	struct tegra_pcie_dw *pcie = to_tegra_pcie(pci);
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		return tegra_pcie_ep_raise_legacy_irq(pcie, interrupt_num);
>  
>  	case PCI_EPC_IRQ_MSI:
> diff --git a/drivers/pci/controller/dwc/pcie-uniphier-ep.c b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
> index cba3c88fcf39..a00301928c38 100644
> --- a/drivers/pci/controller/dwc/pcie-uniphier-ep.c
> +++ b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
> @@ -262,7 +262,7 @@ static int uniphier_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
>  	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		return uniphier_pcie_ep_raise_legacy_irq(ep);
>  	case PCI_EPC_IRQ_MSI:
>  		return uniphier_pcie_ep_raise_msi_irq(ep, func_no,
> diff --git a/drivers/pci/controller/pcie-rcar-ep.c b/drivers/pci/controller/pcie-rcar-ep.c
> index f9682df1da61..fbdf3d85301c 100644
> --- a/drivers/pci/controller/pcie-rcar-ep.c
> +++ b/drivers/pci/controller/pcie-rcar-ep.c
> @@ -408,7 +408,7 @@ static int rcar_pcie_ep_raise_irq(struct pci_epc *epc, u8 fn, u8 vfn,
>  	struct rcar_pcie_endpoint *ep = epc_get_drvdata(epc);
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		return rcar_pcie_ep_assert_intx(ep, fn, 0);
>  
>  	case PCI_EPC_IRQ_MSI:
> diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
> index 0af0e965fb57..e856a45d0986 100644
> --- a/drivers/pci/controller/pcie-rockchip-ep.c
> +++ b/drivers/pci/controller/pcie-rockchip-ep.c
> @@ -413,7 +413,7 @@ static int rockchip_pcie_ep_raise_irq(struct pci_epc *epc, u8 fn, u8 vfn,
>  	struct rockchip_pcie_ep *ep = epc_get_drvdata(epc);
>  
>  	switch (type) {
> -	case PCI_EPC_IRQ_LEGACY:
> +	case PCI_EPC_IRQ_INTX:
>  		return rockchip_pcie_ep_send_legacy_irq(ep, fn, 0);
>  	case PCI_EPC_IRQ_MSI:
>  		return rockchip_pcie_ep_send_msi_irq(ep, fn, interrupt_num);
> diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
> index 1f0d2b84296a..caa30596fadd 100644
> --- a/drivers/pci/endpoint/functions/pci-epf-test.c
> +++ b/drivers/pci/endpoint/functions/pci-epf-test.c
> @@ -19,11 +19,11 @@
>  #include <linux/pci-epf.h>
>  #include <linux/pci_regs.h>
>  
> -#define IRQ_TYPE_LEGACY			0
> +#define IRQ_TYPE_INTX			0
>  #define IRQ_TYPE_MSI			1
>  #define IRQ_TYPE_MSIX			2
>  
> -#define COMMAND_RAISE_LEGACY_IRQ	BIT(0)
> +#define COMMAND_RAISE_INTX_IRQ		BIT(0)
>  #define COMMAND_RAISE_MSI_IRQ		BIT(1)
>  #define COMMAND_RAISE_MSIX_IRQ		BIT(2)
>  #define COMMAND_READ			BIT(3)
> @@ -600,9 +600,9 @@ static void pci_epf_test_raise_irq(struct pci_epf_test *epf_test,
>  	WRITE_ONCE(reg->status, status);
>  
>  	switch (reg->irq_type) {
> -	case IRQ_TYPE_LEGACY:
> +	case IRQ_TYPE_INTX:
>  		pci_epc_raise_irq(epc, epf->func_no, epf->vfunc_no,
> -				  PCI_EPC_IRQ_LEGACY, 0);
> +				  PCI_EPC_IRQ_INTX, 0);
>  		break;
>  	case IRQ_TYPE_MSI:
>  		count = pci_epc_get_msi(epc, epf->func_no, epf->vfunc_no);
> @@ -659,7 +659,7 @@ static void pci_epf_test_cmd_handler(struct work_struct *work)
>  	}
>  
>  	switch (command) {
> -	case COMMAND_RAISE_LEGACY_IRQ:
> +	case COMMAND_RAISE_INTX_IRQ:
>  	case COMMAND_RAISE_MSI_IRQ:
>  	case COMMAND_RAISE_MSIX_IRQ:
>  		pci_epf_test_raise_irq(epf_test, reg);
> diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h
> index 5cb694031072..c5ada36b6ca0 100644
> --- a/include/linux/pci-epc.h
> +++ b/include/linux/pci-epc.h
> @@ -21,7 +21,7 @@ enum pci_epc_interface_type {
>  
>  enum pci_epc_irq_type {
>  	PCI_EPC_IRQ_UNKNOWN,
> -	PCI_EPC_IRQ_LEGACY,
> +	PCI_EPC_IRQ_INTX,
>  	PCI_EPC_IRQ_MSI,
>  	PCI_EPC_IRQ_MSIX,
>  };
> @@ -54,7 +54,7 @@ pci_epc_interface_string(enum pci_epc_interface_type type)
>   *	     MSI-X capability register
>   * @get_msix: ops to get the number of MSI-X interrupts allocated by the RC
>   *	     from the MSI-X capability register
> - * @raise_irq: ops to raise a legacy, MSI or MSI-X interrupt
> + * @raise_irq: ops to raise an INTx, MSI or MSI-X interrupt
>   * @map_msi_irq: ops to map physical address to MSI address and return MSI data
>   * @start: ops to start the PCI link
>   * @stop: ops to stop the PCI link

-- 
Damien Le Moal
Western Digital Research
From e2acf8cc92fc3902b355ba3fe4a8c37c9535c7c8 Mon Sep 17 00:00:00 2001
From: Damien Le Moal <dlemoal@xxxxxxxxxx>
Date: Wed, 12 Apr 2023 19:50:47 +0900
Subject: [PATCH] PCI: endpoint: Drop PCI_EPC_IRQ_XXX definitions

linux/pci.h defines the IRQ flags PCI_IRQ_LEGACY, PCI_IRQ_MSI and
PCI_IRQ_MSIX. Let's use these flags directly instead of the endpoint
definitions provided by enum pci_epc_irq_type.

Signed-off-by: Damien Le Moal <dlemoal@xxxxxxxxxx>
---
 drivers/pci/controller/cadence/pcie-cadence-ep.c  |  9 ++++-----
 drivers/pci/controller/dwc/pci-dra7xx.c           |  6 +++---
 drivers/pci/controller/dwc/pci-imx6.c             |  9 ++++-----
 drivers/pci/controller/dwc/pci-keystone.c         |  9 ++++-----
 drivers/pci/controller/dwc/pci-layerscape-ep.c    |  8 ++++----
 drivers/pci/controller/dwc/pcie-artpec6.c         |  6 +++---
 drivers/pci/controller/dwc/pcie-designware-ep.c   |  2 +-
 drivers/pci/controller/dwc/pcie-designware-plat.c |  9 ++++-----
 drivers/pci/controller/dwc/pcie-designware.h      |  2 +-
 drivers/pci/controller/dwc/pcie-keembay.c         |  9 ++++-----
 drivers/pci/controller/dwc/pcie-qcom-ep.c         |  6 +++---
 drivers/pci/controller/dwc/pcie-tegra194.c        |  9 ++++-----
 drivers/pci/controller/dwc/pcie-uniphier-ep.c     |  7 +++----
 drivers/pci/controller/pcie-rcar-ep.c             |  7 +++----
 drivers/pci/controller/pcie-rockchip-ep.c         |  7 +++----
 drivers/pci/endpoint/functions/pci-epf-mhi.c      |  2 +-
 drivers/pci/endpoint/functions/pci-epf-ntb.c      |  4 ++--
 drivers/pci/endpoint/functions/pci-epf-test.c     |  6 +++---
 drivers/pci/endpoint/functions/pci-epf-vntb.c     |  7 ++-----
 drivers/pci/endpoint/pci-epc-core.c               |  2 +-
 include/linux/pci-epc.h                           | 11 ++---------
 21 files changed, 59 insertions(+), 78 deletions(-)

diff --git a/drivers/pci/controller/cadence/pcie-cadence-ep.c b/drivers/pci/controller/cadence/pcie-cadence-ep.c
index b8b655d4047e..250ad1330ff3 100644
--- a/drivers/pci/controller/cadence/pcie-cadence-ep.c
+++ b/drivers/pci/controller/cadence/pcie-cadence-ep.c
@@ -531,25 +531,24 @@ static int cdns_pcie_ep_send_msix_irq(struct cdns_pcie_ep *ep, u8 fn, u8 vfn,
 }
 
 static int cdns_pcie_ep_raise_irq(struct pci_epc *epc, u8 fn, u8 vfn,
-				  enum pci_epc_irq_type type,
-				  u16 interrupt_num)
+				  unsigned int type, u16 interrupt_num)
 {
 	struct cdns_pcie_ep *ep = epc_get_drvdata(epc);
 	struct cdns_pcie *pcie = &ep->pcie;
 	struct device *dev = pcie->dev;
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		if (vfn > 0) {
 			dev_err(dev, "Cannot raise legacy interrupts for VF\n");
 			return -EINVAL;
 		}
 		return cdns_pcie_ep_send_legacy_irq(ep, fn, vfn, 0);
 
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		return cdns_pcie_ep_send_msi_irq(ep, fn, vfn, interrupt_num);
 
-	case PCI_EPC_IRQ_MSIX:
+	case PCI_IRQ_MSIX:
 		return cdns_pcie_ep_send_msix_irq(ep, fn, vfn, interrupt_num);
 
 	default:
diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c
index 4ae807e7cf79..1203f76b3604 100644
--- a/drivers/pci/controller/dwc/pci-dra7xx.c
+++ b/drivers/pci/controller/dwc/pci-dra7xx.c
@@ -404,16 +404,16 @@ static void dra7xx_pcie_raise_msi_irq(struct dra7xx_pcie *dra7xx,
 }
 
 static int dra7xx_pcie_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
-				 enum pci_epc_irq_type type, u16 interrupt_num)
+				 unsigned int type, u16 interrupt_num)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 	struct dra7xx_pcie *dra7xx = to_dra7xx_pcie(pci);
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		dra7xx_pcie_raise_legacy_irq(dra7xx);
 		break;
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		dra7xx_pcie_raise_msi_irq(dra7xx, interrupt_num);
 		break;
 	default:
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 27aaa2a6bf39..2975f3faca61 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -1057,17 +1057,16 @@ static void imx6_pcie_ep_init(struct dw_pcie_ep *ep)
 }
 
 static int imx6_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
-				  enum pci_epc_irq_type type,
-				  u16 interrupt_num)
+				  unsigned int type, u16 interrupt_num)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		return dw_pcie_ep_raise_legacy_irq(ep, func_no);
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
-	case PCI_EPC_IRQ_MSIX:
+	case PCI_IRQ_MSIX:
 		return dw_pcie_ep_raise_msix_irq(ep, func_no, interrupt_num);
 	default:
 		dev_err(pci->dev, "UNKNOWN IRQ type\n");
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index 78818853af9e..e63ea88051c0 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -901,20 +901,19 @@ static void ks_pcie_am654_raise_legacy_irq(struct keystone_pcie *ks_pcie)
 }
 
 static int ks_pcie_am654_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
-				   enum pci_epc_irq_type type,
-				   u16 interrupt_num)
+				   unsigned int type, u16 interrupt_num)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 	struct keystone_pcie *ks_pcie = to_keystone_pcie(pci);
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		ks_pcie_am654_raise_legacy_irq(ks_pcie);
 		break;
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
 		break;
-	case PCI_EPC_IRQ_MSIX:
+	case PCI_IRQ_MSIX:
 		dw_pcie_ep_raise_msix_irq(ep, func_no, interrupt_num);
 		break;
 	default:
diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c
index de4c1758a6c3..794e0bd199b7 100644
--- a/drivers/pci/controller/dwc/pci-layerscape-ep.c
+++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c
@@ -150,16 +150,16 @@ static void ls_pcie_ep_init(struct dw_pcie_ep *ep)
 }
 
 static int ls_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
-				enum pci_epc_irq_type type, u16 interrupt_num)
+				unsigned int type, u16 interrupt_num)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		return dw_pcie_ep_raise_legacy_irq(ep, func_no);
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
-	case PCI_EPC_IRQ_MSIX:
+	case PCI_IRQ_MSIX:
 		return dw_pcie_ep_raise_msix_irq_doorbell(ep, func_no,
 							  interrupt_num);
 	default:
diff --git a/drivers/pci/controller/dwc/pcie-artpec6.c b/drivers/pci/controller/dwc/pcie-artpec6.c
index 98102079e26d..e84748b82fee 100644
--- a/drivers/pci/controller/dwc/pcie-artpec6.c
+++ b/drivers/pci/controller/dwc/pcie-artpec6.c
@@ -352,15 +352,15 @@ static void artpec6_pcie_ep_init(struct dw_pcie_ep *ep)
 }
 
 static int artpec6_pcie_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
-				  enum pci_epc_irq_type type, u16 interrupt_num)
+				  unsigned int type, u16 interrupt_num)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		dev_err(pci->dev, "EP cannot trigger legacy IRQs\n");
 		return -EINVAL;
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
 	default:
 		dev_err(pci->dev, "UNKNOWN IRQ type\n");
diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index f9182f8d552f..ab87ea3b0986 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -426,7 +426,7 @@ static int dw_pcie_ep_set_msix(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
 }
 
 static int dw_pcie_ep_raise_irq(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
-				enum pci_epc_irq_type type, u16 interrupt_num)
+				unsigned int type, u16 interrupt_num)
 {
 	struct dw_pcie_ep *ep = epc_get_drvdata(epc);
 
diff --git a/drivers/pci/controller/dwc/pcie-designware-plat.c b/drivers/pci/controller/dwc/pcie-designware-plat.c
index 1fcfb840f238..9871c49b0383 100644
--- a/drivers/pci/controller/dwc/pcie-designware-plat.c
+++ b/drivers/pci/controller/dwc/pcie-designware-plat.c
@@ -42,17 +42,16 @@ static void dw_plat_pcie_ep_init(struct dw_pcie_ep *ep)
 }
 
 static int dw_plat_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
-				     enum pci_epc_irq_type type,
-				     u16 interrupt_num)
+				     unsigned int type, u16 interrupt_num)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		return dw_pcie_ep_raise_legacy_irq(ep, func_no);
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
-	case PCI_EPC_IRQ_MSIX:
+	case PCI_IRQ_MSIX:
 		return dw_pcie_ep_raise_msix_irq(ep, func_no, interrupt_num);
 	default:
 		dev_err(pci->dev, "UNKNOWN IRQ type\n");
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index 615660640801..e039081eb947 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -320,7 +320,7 @@ struct dw_pcie_rp {
 struct dw_pcie_ep_ops {
 	void	(*ep_init)(struct dw_pcie_ep *ep);
 	int	(*raise_irq)(struct dw_pcie_ep *ep, u8 func_no,
-			     enum pci_epc_irq_type type, u16 interrupt_num);
+			     unsigned int type, u16 interrupt_num);
 	const struct pci_epc_features* (*get_features)(struct dw_pcie_ep *ep);
 	/*
 	 * Provide a method to implement the different func config space
diff --git a/drivers/pci/controller/dwc/pcie-keembay.c b/drivers/pci/controller/dwc/pcie-keembay.c
index f90f36bac018..c93fd79d400b 100644
--- a/drivers/pci/controller/dwc/pcie-keembay.c
+++ b/drivers/pci/controller/dwc/pcie-keembay.c
@@ -284,19 +284,18 @@ static void keembay_pcie_ep_init(struct dw_pcie_ep *ep)
 }
 
 static int keembay_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
-				     enum pci_epc_irq_type type,
-				     u16 interrupt_num)
+				     unsigned int type, u16 interrupt_num)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		/* Legacy interrupts are not supported in Keem Bay */
 		dev_err(pci->dev, "Legacy IRQ is not supported\n");
 		return -EINVAL;
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
-	case PCI_EPC_IRQ_MSIX:
+	case PCI_IRQ_MSIX:
 		return dw_pcie_ep_raise_msix_irq(ep, func_no, interrupt_num);
 	default:
 		dev_err(pci->dev, "Unknown IRQ type %d\n", type);
diff --git a/drivers/pci/controller/dwc/pcie-qcom-ep.c b/drivers/pci/controller/dwc/pcie-qcom-ep.c
index 0fe7f06f2102..3faabc66f07b 100644
--- a/drivers/pci/controller/dwc/pcie-qcom-ep.c
+++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c
@@ -655,14 +655,14 @@ static int qcom_pcie_ep_enable_irq_resources(struct platform_device *pdev,
 }
 
 static int qcom_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
-				  enum pci_epc_irq_type type, u16 interrupt_num)
+				  unsigned int type, u16 interrupt_num)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		return dw_pcie_ep_raise_legacy_irq(ep, func_no);
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);
 	default:
 		dev_err(pci->dev, "Unknown IRQ type\n");
diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index e1db909f53ec..cafcef0da223 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -1993,20 +1993,19 @@ static int tegra_pcie_ep_raise_msix_irq(struct tegra_pcie_dw *pcie, u16 irq)
 }
 
 static int tegra_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
-				   enum pci_epc_irq_type type,
-				   u16 interrupt_num)
+				   unsigned int type, u16 interrupt_num)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 	struct tegra_pcie_dw *pcie = to_tegra_pcie(pci);
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		return tegra_pcie_ep_raise_legacy_irq(pcie, interrupt_num);
 
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		return tegra_pcie_ep_raise_msi_irq(pcie, interrupt_num);
 
-	case PCI_EPC_IRQ_MSIX:
+	case PCI_IRQ_MSIX:
 		return tegra_pcie_ep_raise_msix_irq(pcie, interrupt_num);
 
 	default:
diff --git a/drivers/pci/controller/dwc/pcie-uniphier-ep.c b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
index 4d0a587c0ba5..43c27138c3c5 100644
--- a/drivers/pci/controller/dwc/pcie-uniphier-ep.c
+++ b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
@@ -256,15 +256,14 @@ static int uniphier_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep,
 }
 
 static int uniphier_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
-				      enum pci_epc_irq_type type,
-				      u16 interrupt_num)
+				      unsigned int type, u16 interrupt_num)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		return uniphier_pcie_ep_raise_legacy_irq(ep);
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		return uniphier_pcie_ep_raise_msi_irq(ep, func_no,
 						      interrupt_num);
 	default:
diff --git a/drivers/pci/controller/pcie-rcar-ep.c b/drivers/pci/controller/pcie-rcar-ep.c
index f9682df1da61..2172db2343d9 100644
--- a/drivers/pci/controller/pcie-rcar-ep.c
+++ b/drivers/pci/controller/pcie-rcar-ep.c
@@ -402,16 +402,15 @@ static int rcar_pcie_ep_assert_msi(struct rcar_pcie *pcie,
 }
 
 static int rcar_pcie_ep_raise_irq(struct pci_epc *epc, u8 fn, u8 vfn,
-				  enum pci_epc_irq_type type,
-				  u16 interrupt_num)
+				  unsigned int type, u16 interrupt_num)
 {
 	struct rcar_pcie_endpoint *ep = epc_get_drvdata(epc);
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		return rcar_pcie_ep_assert_intx(ep, fn, 0);
 
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		return rcar_pcie_ep_assert_msi(&ep->pcie, fn, interrupt_num);
 
 	default:
diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
index 0af0e965fb57..397ad551c912 100644
--- a/drivers/pci/controller/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
@@ -407,15 +407,14 @@ static int rockchip_pcie_ep_send_msi_irq(struct rockchip_pcie_ep *ep, u8 fn,
 }
 
 static int rockchip_pcie_ep_raise_irq(struct pci_epc *epc, u8 fn, u8 vfn,
-				      enum pci_epc_irq_type type,
-				      u16 interrupt_num)
+				      unsigned int type, u16 interrupt_num)
 {
 	struct rockchip_pcie_ep *ep = epc_get_drvdata(epc);
 
 	switch (type) {
-	case PCI_EPC_IRQ_LEGACY:
+	case PCI_IRQ_LEGACY:
 		return rockchip_pcie_ep_send_legacy_irq(ep, fn, 0);
-	case PCI_EPC_IRQ_MSI:
+	case PCI_IRQ_MSI:
 		return rockchip_pcie_ep_send_msi_irq(ep, fn, interrupt_num);
 	default:
 		return -EINVAL;
diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c
index ddf0bace4e18..f2fcda1c5d4f 100644
--- a/drivers/pci/endpoint/functions/pci-epf-mhi.c
+++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c
@@ -177,7 +177,7 @@ static void pci_epf_mhi_raise_irq(struct mhi_ep_cntrl *mhi_cntrl, u32 vector)
 	 * MHI supplies 0 based MSI vectors but the API expects the vector
 	 * number to start from 1, so we need to increment the vector by 1.
 	 */
-	pci_epc_raise_irq(epc, epf->func_no, epf->vfunc_no, PCI_EPC_IRQ_MSI,
+	pci_epc_raise_irq(epc, epf->func_no, epf->vfunc_no, PCI_IRQ_MSI,
 			  vector + 1);
 }
 
diff --git a/drivers/pci/endpoint/functions/pci-epf-ntb.c b/drivers/pci/endpoint/functions/pci-epf-ntb.c
index 9aac2c6f3bb9..fad00b1a8335 100644
--- a/drivers/pci/endpoint/functions/pci-epf-ntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-ntb.c
@@ -140,9 +140,9 @@ static struct pci_epf_header epf_ntb_header = {
 static int epf_ntb_link_up(struct epf_ntb *ntb, bool link_up)
 {
 	enum pci_epc_interface_type type;
-	enum pci_epc_irq_type irq_type;
 	struct epf_ntb_epc *ntb_epc;
 	struct epf_ntb_ctrl *ctrl;
+	unsigned int irq_type;
 	struct pci_epc *epc;
 	u8 func_no, vfunc_no;
 	bool is_msix;
@@ -159,7 +159,7 @@ static int epf_ntb_link_up(struct epf_ntb *ntb, bool link_up)
 			ctrl->link_status |= LINK_STATUS_UP;
 		else
 			ctrl->link_status &= ~LINK_STATUS_UP;
-		irq_type = is_msix ? PCI_EPC_IRQ_MSIX : PCI_EPC_IRQ_MSI;
+		irq_type = is_msix ? PCI_IRQ_MSIX : PCI_IRQ_MSI;
 		ret = pci_epc_raise_irq(epc, func_no, vfunc_no, irq_type, 1);
 		if (ret) {
 			dev_err(&epc->dev,
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index fa993e71c224..76ddf4c92511 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -602,7 +602,7 @@ static void pci_epf_test_raise_irq(struct pci_epf_test *epf_test,
 	switch (reg->irq_type) {
 	case IRQ_TYPE_LEGACY:
 		pci_epc_raise_irq(epc, epf->func_no, epf->vfunc_no,
-				  PCI_EPC_IRQ_LEGACY, 0);
+				  PCI_IRQ_LEGACY, 0);
 		break;
 	case IRQ_TYPE_MSI:
 		count = pci_epc_get_msi(epc, epf->func_no, epf->vfunc_no);
@@ -612,7 +612,7 @@ static void pci_epf_test_raise_irq(struct pci_epf_test *epf_test,
 			return;
 		}
 		pci_epc_raise_irq(epc, epf->func_no, epf->vfunc_no,
-				  PCI_EPC_IRQ_MSI, reg->irq_number);
+				  PCI_IRQ_MSI, reg->irq_number);
 		break;
 	case IRQ_TYPE_MSIX:
 		count = pci_epc_get_msix(epc, epf->func_no, epf->vfunc_no);
@@ -622,7 +622,7 @@ static void pci_epf_test_raise_irq(struct pci_epf_test *epf_test,
 			return;
 		}
 		pci_epc_raise_irq(epc, epf->func_no, epf->vfunc_no,
-				  PCI_EPC_IRQ_MSIX, reg->irq_number);
+				  PCI_IRQ_MSIX, reg->irq_number);
 		break;
 	default:
 		dev_err(dev, "Failed to raise IRQ, unknown type\n");
diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c
index c8b423c3c26e..ba2fe0bb400a 100644
--- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c
@@ -1172,11 +1172,8 @@ static int vntb_epf_peer_db_set(struct ntb_dev *ndev, u64 db_bits)
 	func_no = ntb->epf->func_no;
 	vfunc_no = ntb->epf->vfunc_no;
 
-	ret = pci_epc_raise_irq(ntb->epf->epc,
-				func_no,
-				vfunc_no,
-				PCI_EPC_IRQ_MSI,
-				interrupt_num + 1);
+	ret = pci_epc_raise_irq(ntb->epf->epc, func_no, vfunc_no,
+				PCI_IRQ_MSI, interrupt_num + 1);
 	if (ret)
 		dev_err(&ntb->ntb.dev, "Failed to raise IRQ\n");
 
diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c
index 6c54fa5684d2..835d56922cbb 100644
--- a/drivers/pci/endpoint/pci-epc-core.c
+++ b/drivers/pci/endpoint/pci-epc-core.c
@@ -218,7 +218,7 @@ EXPORT_SYMBOL_GPL(pci_epc_start);
  * Invoke to raise an legacy, MSI or MSI-X interrupt
  */
 int pci_epc_raise_irq(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
-		      enum pci_epc_irq_type type, u16 interrupt_num)
+		      unsigned int type, u16 interrupt_num)
 {
 	int ret;
 
diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h
index 5cb694031072..f498f9aa2ab0 100644
--- a/include/linux/pci-epc.h
+++ b/include/linux/pci-epc.h
@@ -19,13 +19,6 @@ enum pci_epc_interface_type {
 	SECONDARY_INTERFACE,
 };
 
-enum pci_epc_irq_type {
-	PCI_EPC_IRQ_UNKNOWN,
-	PCI_EPC_IRQ_LEGACY,
-	PCI_EPC_IRQ_MSI,
-	PCI_EPC_IRQ_MSIX,
-};
-
 static inline const char *
 pci_epc_interface_string(enum pci_epc_interface_type type)
 {
@@ -79,7 +72,7 @@ struct pci_epc_ops {
 			    u16 interrupts, enum pci_barno, u32 offset);
 	int	(*get_msix)(struct pci_epc *epc, u8 func_no, u8 vfunc_no);
 	int	(*raise_irq)(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
-			     enum pci_epc_irq_type type, u16 interrupt_num);
+			     unsigned int type, u16 interrupt_num);
 	int	(*map_msi_irq)(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
 			       phys_addr_t phys_addr, u8 interrupt_num,
 			       u32 entry_size, u32 *msi_data,
@@ -229,7 +222,7 @@ int pci_epc_map_msi_irq(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
 			phys_addr_t phys_addr, u8 interrupt_num,
 			u32 entry_size, u32 *msi_data, u32 *msi_addr_offset);
 int pci_epc_raise_irq(struct pci_epc *epc, u8 func_no, u8 vfunc_no,
-		      enum pci_epc_irq_type type, u16 interrupt_num);
+		      unsigned int type, u16 interrupt_num);
 int pci_epc_start(struct pci_epc *epc);
 void pci_epc_stop(struct pci_epc *epc);
 const struct pci_epc_features *pci_epc_get_features(struct pci_epc *epc,
-- 
2.41.0


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