[patch V2 00/10] genirq/msi: Spring cleaning

Thomas Gleixner
2025-03-13T13:03:38Z

This is version 2 of the cleanup work. The previous version can be found
here:

https://lore.kernel.org/all/20250309083453.900516105@linutronix.de

While converting the MSI descriptor locking to a lock guard() I stumbled
over various abuse of MSI descriptors (again).

The following series cleans up the offending code and converts the MSI
descriptor locking over to lock guards.

Changes vs. V1:

- Introduce retain_ptr() to allow using __free() when the allocation is
consumed by a called function (on success) and therefore no_free_ptr()
can't be used.

- Rework the PCI/MSI changes to avoid gotos in guard sections

- Drop patch 1 as it's already applied

- Collect Reviewed/Tested/Acked-by tags where appropriate

Patches 3,4,6-10 are unmodifed.

The series applies on:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/msi

and is available from git:

git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git irq/msi

Thanks,

tglx
---
drivers/ntb/msi.c | 22 +---
drivers/pci/controller/pci-hyperv.c | 14 ---
drivers/pci/msi/api.c | 6 -
drivers/pci/msi/msi.c | 168 ++++++++++++++++++++++--------------
drivers/pci/pci.h | 9 +
drivers/pci/tph.c | 44 ---------
drivers/soc/ti/ti_sci_inta_msi.c | 10 --
drivers/ufs/host/ufs-qcom.c | 75 ++++++++--------
include/linux/cleanup.h | 17 +++
include/linux/irqdomain.h | 2
include/linux/msi.h | 7 +
kernel/irq/msi.c | 125 ++++++++++----------------
12 files changed, 247 insertions(+), 252 deletions(-)