The following commit has been merged into the irq/msi branch of tip: Commit-ID: ef3350c53d2aac65cf1c4ecc968bbb1de5f421ea Gitweb: https://git.kernel.org/tip/ef3350c53d2aac65cf1c4ecc968bbb1de5f421ea Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx> AuthorDate: Mon, 06 Dec 2021 23:51:49 +01:00 Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CommitterDate: Thu, 16 Dec 2021 22:22:20 +01:00 genirq/msi: Add abuse prevention comment to msi header Hope dies last. Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Link: https://lore.kernel.org/r/20211206210749.170847844@xxxxxxxxxxxxx --- include/linux/msi.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/include/linux/msi.h b/include/linux/msi.h index b54010b..70cc6a5 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -2,6 +2,20 @@ #ifndef LINUX_MSI_H #define LINUX_MSI_H +/* + * This header file contains MSI data structures and functions which are + * only relevant for: + * - Interrupt core code + * - PCI/MSI core code + * - MSI interrupt domain implementations + * - IOMMU, low level VFIO, NTB and other justified exceptions + * dealing with low level MSI details. + * + * Regular device drivers have no business with any of these functions and + * especially storing MSI descriptor pointers in random code is considered + * abuse. The only function which is relevant for drivers is msi_get_virq(). + */ + #include <linux/cpumask.h> #include <linux/mutex.h> #include <linux/list.h>
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