genirq/msi: Add abuse prevention comment to msi header
Hope dies last. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20211206210749.170847844@linutronix.de
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@ -2,6 +2,20 @@
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#ifndef LINUX_MSI_H
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#ifndef LINUX_MSI_H
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#define LINUX_MSI_H
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#define LINUX_MSI_H
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/*
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* This header file contains MSI data structures and functions which are
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* only relevant for:
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* - Interrupt core code
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* - PCI/MSI core code
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* - MSI interrupt domain implementations
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* - IOMMU, low level VFIO, NTB and other justified exceptions
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* dealing with low level MSI details.
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*
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* Regular device drivers have no business with any of these functions and
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* especially storing MSI descriptor pointers in random code is considered
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* abuse. The only function which is relevant for drivers is msi_get_virq().
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*/
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#include <linux/cpumask.h>
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#include <linux/cpumask.h>
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#include <linux/mutex.h>
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#include <linux/mutex.h>
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#include <linux/list.h>
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#include <linux/list.h>
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