On Tue, Apr 23, 2024, at 23:38, Greg Kroah-Hartman wrote: > 6.6-stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Niklas Schnelle <schnelle@xxxxxxxxxxxxx> > > [ Upstream commit 52e24f8c0a102ac76649c6b71224fadcc82bd5da ] > > In a future patch HAS_IOPORT=n will result in inb()/outb() and friends > not being declared. In the pci-quirks case the I/O port acceses are > used in the quirks for several AMD south bridges, Add a config option > for the AMD quirks to depend on HAS_IOPORT and #ifdef the quirk code. > > Co-developed-by: Arnd Bergmann <arnd@xxxxxxxxxx> > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxxxx> > Signed-off-by: Niklas Schnelle <schnelle@xxxxxxxxxxxxx> > Link: https://lore.kernel.org/r/20230911125653.1393895-3-schnelle@xxxxxxxxxxxxx > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> > --- > drivers/usb/Kconfig | 10 ++++++++++ > drivers/usb/core/hcd-pci.c | 3 +-- > drivers/usb/host/pci-quirks.c | 2 ++ > drivers/usb/host/pci-quirks.h | 30 ++++++++++++++++++++++-------- > include/linux/usb/hcd.h | 17 +++++++++++++++++ > 5 files changed, 52 insertions(+), 10 deletions(-) There is no harm in backporting this one to 6.6, but there is no need either since it is only a preparation for the coming changes to asm/io.h. Like the PCI quirks patch, I wouldn't backport it at all. If you do want to keep it, be careful about backporting it to older kernels, as it depends on fcbfe8121a45 ("Kconfig: introduce HAS_IOPORT option and select it as necessary") from linux-6.4. Arnd
