Re: [PATCH v16 04/22] PCI: Rename PCI_EPC_IRQ_LEGACY to PCI_EPC_IRQ_INTX

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On Wed, May 10, 2023 at 03:22:16PM +0900, 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>

> 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>

I doubt that that long Cc-tags list of much use in this case
especially seeing the change is mainly relevant to the PCIe
subsystem core. In order to still let git send-email to create a
pre-defined Cc-list I normally move all the Cc'es to be below the
"---" line. Thus the specified developers will be added by the
send-email tool to the list of recipients but git am will ignore
everything below "---" so the mainline commit won't have these
Cc-tags.

-Serge(y)

> Reviewed-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>
> Acked-by: Jesper Nilsson <jesper.nilsson@xxxxxxxx> # ARTPEC
> Reviewed-by: Serge Semin <fancer.lancer@xxxxxxxxx>
> ---
>  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 4ae807e7cf79..b42fb1cc8bc8 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 52906f999f2b..1f39e733ce19 100644
> --- a/drivers/pci/controller/dwc/pci-imx6.c
> +++ b/drivers/pci/controller/dwc/pci-imx6.c
> @@ -1062,7 +1062,7 @@ 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 78818853af9e..3806f5530937 100644
> --- a/drivers/pci/controller/dwc/pci-keystone.c
> +++ b/drivers/pci/controller/dwc/pci-keystone.c
> @@ -908,7 +908,7 @@ 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 c640db60edc6..ab3306e206d8 100644
> --- a/drivers/pci/controller/dwc/pci-layerscape-ep.c
> +++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c
> @@ -65,7 +65,7 @@ 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 98102079e26d..128cb1118e3a 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 1fcfb840f238..fc3b02949218 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 f90f36bac018..ceb940b327cb 100644
> --- a/drivers/pci/controller/dwc/pcie-keembay.c
> +++ b/drivers/pci/controller/dwc/pcie-keembay.c
> @@ -290,7 +290,7 @@ 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 19b32839ea26..077afce48d0b 100644
> --- a/drivers/pci/controller/dwc/pcie-qcom-ep.c
> +++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c
> @@ -658,7 +658,7 @@ 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 09825b4a075e..4adba379b83d 100644
> --- a/drivers/pci/controller/dwc/pcie-tegra194.c
> +++ b/drivers/pci/controller/dwc/pcie-tegra194.c
> @@ -1980,7 +1980,7 @@ 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 4d0a587c0ba5..7787eedf87f4 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 d1a200b93b2b..ef9d1f6c382a 100644
> --- a/drivers/pci/controller/pcie-rockchip-ep.c
> +++ b/drivers/pci/controller/pcie-rockchip-ep.c
> @@ -477,7 +477,7 @@ 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 623b08caa998..6beb3f2b0afb 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 301bb0e53707..c2572a93d73d 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
> -- 
> 2.25.1
> 



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