Re: [PATCH 10/15] PCI: kill off set_irq_flags usage

Bjorn Helgaas
2015-06-18T17:00:06Z

On Tue, Jun 09, 2015 at 01:26:36PM -0500, Rob Herring wrote:
> set_irq_flags is ARM specific with custom flags which have genirq
> equivalents. Convert drivers to use the genirq interfaces directly, so we
> can kill off set_irq_flags. The translation of flags is as follows:
>
> IRQF_VALID -> !IRQ_NOREQUEST
> IRQF_PROBE -> !IRQ_NOPROBE
> IRQF_NOAUTOEN -> IRQ_NOAUTOEN
>
> For IRQs managed by an irqdomain, the irqdomain core code handles clearing
> and setting IRQ_NOREQUEST already, so there is no need to do this in
> .map() functions and we can simply remove the set_irq_flags calls. Some
> users also set IRQ_NOPROBE and this has been maintained although it is not
> clear that is really needed. There appears to be a great deal of blind
> copy and paste of this code.
>
> Signed-off-by: Rob Herring <robh@kernel.org>
> Cc: Kishon Vijay Abraham I <kishon@ti.com>
> Cc: Bjorn Helgaas <bhelgaas@google.com>
> Cc: Murali Karicheri <m-karicheri2@ti.com>
> Cc: Thierry Reding <thierry.reding@gmail.com>
> Cc: Stephen Warren <swarren@wwwdotorg.org>
> Cc: Alexandre Courbot <gnurou@gmail.com>
> Cc: Jingoo Han <jingoohan1@gmail.com>
> Cc: Pratyush Anand <pratyush.anand@gmail.com>
> Cc: Simon Horman <horms@verge.net.au>
> Cc: Michal Simek <michal.simek@xilinx.com>
> Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com>
> Cc: linux-omap@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-tegra@vger.kernel.org
> Cc: linux-sh@vger.kernel.org

This is the only part of the series on linux-pci, so I assume this will be
merged by somebody else along with the rest.

Acked-by: Bjorn Helgaas <bhelgaas@google.com>

> ---
> drivers/pci/host/pci-dra7xx.c | 1 -
> drivers/pci/host/pci-keystone-dw.c | 2 --
> drivers/pci/host/pci-tegra.c | 1 -
> drivers/pci/host/pcie-designware.c | 1 -
> drivers/pci/host/pcie-rcar.c | 1 -
> drivers/pci/host/pcie-xilinx.c | 2 --
> 6 files changed, 8 deletions(-)
>
> diff --git a/drivers/pci/host/pci-dra7xx.c b/drivers/pci/host/pci-dra7xx.c
> index 2d57e19..94cbc4d 100644
> --- a/drivers/pci/host/pci-dra7xx.c
> +++ b/drivers/pci/host/pci-dra7xx.c
> @@ -160,7 +160,6 @@ static int dra7xx_pcie_intx_map(struct irq_domain *domain, unsigned int irq,
> {
> irq_set_chip_and_handler(irq, &dummy_irq_chip, handle_simple_irq);
> irq_set_chip_data(irq, domain->host_data);
> - set_irq_flags(irq, IRQF_VALID);
>
> return 0;
> }
> diff --git a/drivers/pci/host/pci-keystone-dw.c b/drivers/pci/host/pci-keystone-dw.c
> index f34892e..f1d0749 100644
> --- a/drivers/pci/host/pci-keystone-dw.c
> +++ b/drivers/pci/host/pci-keystone-dw.c
> @@ -196,7 +196,6 @@ static int ks_dw_pcie_msi_map(struct irq_domain *domain, unsigned int irq,
> irq_set_chip_and_handler(irq, &ks_dw_pcie_msi_irq_chip,
> handle_level_irq);
> irq_set_chip_data(irq, domain->host_data);
> - set_irq_flags(irq, IRQF_VALID);
>
> return 0;
> }
> @@ -277,7 +276,6 @@ static int ks_dw_pcie_init_legacy_irq_map(struct irq_domain *d,
> irq_set_chip_and_handler(irq, &ks_dw_pcie_legacy_irq_chip,
> handle_level_irq);
> irq_set_chip_data(irq, d->host_data);
> - set_irq_flags(irq, IRQF_VALID);
>
> return 0;
> }
> diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
> index 00e9272..36bd700 100644
> --- a/drivers/pci/host/pci-tegra.c
> +++ b/drivers/pci/host/pci-tegra.c
> @@ -1263,7 +1263,6 @@ static int tegra_msi_map(struct irq_domain *domain, unsigned int irq,
> {
> irq_set_chip_and_handler(irq, &tegra_msi_irq_chip, handle_simple_irq);
> irq_set_chip_data(irq, domain->host_data);
> - set_irq_flags(irq, IRQF_VALID);
>
> tegra_cpuidle_pcie_irqs_in_use();
>
> diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
> index 2e9f84f..5caa94d 100644
> --- a/drivers/pci/host/pcie-designware.c
> +++ b/drivers/pci/host/pcie-designware.c
> @@ -333,7 +333,6 @@ static int dw_pcie_msi_map(struct irq_domain *domain, unsigned int irq,
> {
> irq_set_chip_and_handler(irq, &dw_msi_irq_chip, handle_simple_irq);
> irq_set_chip_data(irq, domain->host_data);
> - set_irq_flags(irq, IRQF_VALID);
>
> return 0;
> }
> diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
> index c086210..7678fe0 100644
> --- a/drivers/pci/host/pcie-rcar.c
> +++ b/drivers/pci/host/pcie-rcar.c
> @@ -664,7 +664,6 @@ static int rcar_msi_map(struct irq_domain *domain, unsigned int irq,
> {
> irq_set_chip_and_handler(irq, &rcar_msi_irq_chip, handle_simple_irq);
> irq_set_chip_data(irq, domain->host_data);
> - set_irq_flags(irq, IRQF_VALID);
>
> return 0;
> }
> diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
> index f1a06a0..72015119 100644
> --- a/drivers/pci/host/pcie-xilinx.c
> +++ b/drivers/pci/host/pcie-xilinx.c
> @@ -338,7 +338,6 @@ static int xilinx_pcie_msi_map(struct irq_domain *domain, unsigned int irq,
> {
> irq_set_chip_and_handler(irq, &xilinx_msi_irq_chip, handle_simple_irq);
> irq_set_chip_data(irq, domain->host_data);
> - set_irq_flags(irq, IRQF_VALID);
>
> return 0;
> }
> @@ -377,7 +376,6 @@ static int xilinx_pcie_intx_map(struct irq_domain *domain, unsigned int irq,
> {
> irq_set_chip_and_handler(irq, &dummy_irq_chip, handle_simple_irq);
> irq_set_chip_data(irq, domain->host_data);
> - set_irq_flags(irq, IRQF_VALID);
>
> return 0;
> }
> --
> 2.1.0
>
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