[PATCH v2 0/3] Fix pci_iounmap() on !CONFIG_GENERIC_IOMAP

From: Lorenzo Pieralisi
Date: Wed Sep 16 2020 - 16:27:18 EST


v2 of a previous posting.

v1->v2:
- Added additional patch to remove sparc32 useless __KERNEL__
guard

v1: https://lore.kernel.org/lkml/20200915093203.16934-1-lorenzo.pieralisi@xxxxxxx

Original cover letter
---

Fix the empty pci_iounmap() implementation that is causing memory leaks on
!CONFIG_GENERIC_IOMAP configs relying on asm-generic/io.h.

A small tweak is required on sparc32 to pull in some declarations,
hopefully nothing problematic, subject to changes as requested.

Previous tentatives:
https://lore.kernel.org/lkml/20200905024811.74701-1-yangyingliang@xxxxxxxxxx
https://lore.kernel.org/lkml/20200824132046.3114383-1-george.cherian@xxxxxxxxxxx

Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: George Cherian <george.cherian@xxxxxxxxxxx>
Cc: Yang Yingliang <yangyingliang@xxxxxxxxxx>

Lorenzo Pieralisi (3):
sparc32: Remove useless io_32.h __KERNEL__ preprocessor guard
sparc32: Move ioremap/iounmap declaration before asm-generic/io.h
include
asm-generic/io.h: Fix !CONFIG_GENERIC_IOMAP pci_iounmap()
implementation

arch/sparc/include/asm/io_32.h | 17 ++++++---------
include/asm-generic/io.h | 39 +++++++++++++++++++++++-----------
2 files changed, 34 insertions(+), 22 deletions(-)

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2.26.1