kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-11-08 18:57:22 +00:00
Code Issues Releases Packages Activity
linux/drivers/pci/msi
History
Inochi Amaoto 93563a8985 PCI/MSI: Check MSI_FLAG_PCI_MSI_MASK_PARENT in cond_[startup|shutdown]_parent() 
[ Upstream commit 727e914bbf ]

For MSI controllers which only support MSI_FLAG_PCI_MSI_MASK_PARENT, the
newly added callback irq_startup() and irq_shutdown() for
pci_msi[x]_template will not unmask or mask the interrupt when startup()
resp.  shutdown() is invoked. This prevents the interrupt from being
enabled resp. disabled.

Invoke irq_[un]mask_parent() in cond_[startup|shutdown]_parent(), when the
interrupt has the MSI_FLAG_PCI_MSI_MASK_PARENT flag set.

Fixes: 54f45a30c0 ("PCI/MSI: Add startup/shutdown for per device domains")
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: Wei Fang <wei.fang@nxp.com>
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Wei Fang <wei.fang@nxp.com>
Tested-by: Chen Wang <unicorn_wang@outlook.com> # Pioneerbox/SG2042
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/all/20250827230943.17829-1-inochiama@gmail.com
Closes: https://lore.kernel.org/regressions/aK4O7Hl8NCVEMznB@monster/
Closes: https://lore.kernel.org/regressions/20250826220959.GA4119563@ax162/
Closes: https://lore.kernel.org/all/20250827093911.1218640-1-wei.fang@nxp.com/
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-10-15 12:03:23 +02:00
..
api.c PCI/MSI: Use bool for MSI enable state tracking 2025-05-21 21:28:53 +02:00
irqdomain.c PCI/MSI: Check MSI_FLAG_PCI_MSI_MASK_PARENT in cond_[startup|shutdown]_parent() 2025-10-15 12:03:23 +02:00
legacy.c PCI/MSI: Prevent UAF in error path 2022-01-21 02:14:46 +01:00
Makefile PCI/MSI: Move pci_disable_msi() to api.c 2022-11-17 15:15:20 +01:00
msi.c pci-v6.17-changes 2025-08-01 13:59:07 -07:00
msi.h PCI/MSI: Size device MSI domain with the maximum number of vectors 2025-06-04 11:19:25 +02:00
pcidev_msi.c PCI/MSI: Split out CONFIG_PCI_MSI independent part 2021-12-09 11:52:22 +01:00