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Date: Mon, 21 Nov 2022 15:36:42 +0100 (CET) From: Thomas Gleixner <tglx@...utronix.de> To: LKML <linux-kernel@...r.kernel.org> Cc: x86@...nel.org, Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>, linux-pci@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>, Lorenzo Pieralisi <lorenzo.pieralisi@....com>, Marc Zyngier <maz@...nel.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jason Gunthorpe <jgg@...lanox.com>, Dave Jiang <dave.jiang@...el.com>, Alex Williamson <alex.williamson@...hat.com>, Kevin Tian <kevin.tian@...el.com>, Dan Williams <dan.j.williams@...el.com>, Logan Gunthorpe <logang@...tatee.com>, Ashok Raj <ashok.raj@...el.com>, Jon Mason <jdmason@...zu.us>, Allen Hubbe <allenbh@...il.com> Subject: [patch V2 19/21] bus: fsl-mc-msi: Switch to domain id aware interfaces Switch to the new domain id aware interfaces to phase out the previous ones. Get rid of the MSI descriptor and domain checks as the core code detects these issues anyway. No functional change. Signed-off-by: Thomas Gleixner <tglx@...utronix.de> --- drivers/bus/fsl-mc/fsl-mc-msi.c | 25 +++---------------------- 1 file changed, 3 insertions(+), 22 deletions(-) --- a/drivers/bus/fsl-mc/fsl-mc-msi.c +++ b/drivers/bus/fsl-mc/fsl-mc-msi.c @@ -213,21 +213,8 @@ struct irq_domain *fsl_mc_find_msi_domai int fsl_mc_msi_domain_alloc_irqs(struct device *dev, unsigned int irq_count) { - struct irq_domain *msi_domain; - int error; + int error = msi_setup_device_data(dev); - msi_domain = dev_get_msi_domain(dev); - if (!msi_domain) - return -EINVAL; - - error = msi_setup_device_data(dev); - if (error) - return error; - - msi_lock_descs(dev); - if (msi_first_desc(dev, MSI_DESC_ALL)) - error = -EINVAL; - msi_unlock_descs(dev); if (error) return error; @@ -235,7 +222,7 @@ int fsl_mc_msi_domain_alloc_irqs(struct * NOTE: Calling this function will trigger the invocation of the * its_fsl_mc_msi_prepare() callback */ - error = msi_domain_alloc_irqs(msi_domain, dev, irq_count); + error = msi_domain_alloc_irqs_range(dev, MSI_DEFAULT_DOMAIN, 0, irq_count - 1); if (error) dev_err(dev, "Failed to allocate IRQs\n"); @@ -244,11 +231,5 @@ int fsl_mc_msi_domain_alloc_irqs(struct void fsl_mc_msi_domain_free_irqs(struct device *dev) { - struct irq_domain *msi_domain; - - msi_domain = dev_get_msi_domain(dev); - if (!msi_domain) - return; - - msi_domain_free_irqs(msi_domain, dev); + msi_domain_free_irqs_all(dev, MSI_DEFAULT_DOMAIN); }
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