The following changes since commit 6efb943b8616ec53a5e444193dccf1af9ad627b5: Linux 5.13-rc1 (2021-05-09 14:17:44 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git tags/asm-generic-pci-ioport-5.14 for you to fetch changes up to 5ae6eadfdaf431f47adbdf1754f3b5a5fd638de2: asm-generic/io.h: warn in inb() and friends with undefined PCI_IOBASE (2021-05-10 17:37:55 +0200) ---------------------------------------------------------------- asm-generic: rework PCI I/O space access A rework for PCI I/O space access from Niklas Schnelle: "This is version 5 of my attempt to get rid of a clang -Wnull-pointer-arithmetic warning for the use of PCI_IOBASE in asm-generic/io.h. This was originally found on s390 but should apply to all platforms leaving PCI_IOBASE undefined while making use of the inb() and friends helpers from asm-generic/io.h. This applies cleanly and was compile tested on top of v5.12 for the previously broken ARC, nds32, h8300 and risc-v architecture. It also applies cleanly on v5.13-rc1 for which I boot tested it on s390. I did boot test this only on x86_64 and s390x the former implements inb() itself while the latter would emit a WARN_ONCE() but no drivers use inb(). Link: https://lore.kernel.org/lkml/20210510145234.594814-1-schnelle@xxxxxxxxxxxxx/ Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> ---------------------------------------------------------------- Niklas Schnelle (3): sparc: explicitly set PCI_IOBASE to 0 risc-v: Use generic io.h helpers for nommu asm-generic/io.h: warn in inb() and friends with undefined PCI_IOBASE arch/riscv/include/asm/io.h | 5 +++-- arch/sparc/include/asm/io.h | 8 ++++++++ include/asm-generic/io.h | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---- 3 files changed, 75 insertions(+), 6 deletions(-)
