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Eric W. Biederman f5f2b13129 [PATCH] msi: sanely support hardware level msi disabling ... In some cases when we are not using msi we need a way to ensure that the hardware does not have an msi capability enabled. Currently the code has been calling disable_msi_mode to try and achieve that. However disable_msi_mode has several other side effects and is only available when msi support is compiled in so it isn't really appropriate. Instead this patch implements pci_msi_off which disables all msi and msix capabilities unconditionally with no additional side effects. pci_disable_device was redundantly clearing the bus master enable flag and clearing the msi enable bit. A device that is not allowed to perform bus mastering operations cannot generate intx or msi interrupt messages as those are essentially a special case of dma, and require bus mastering. So the call in pci_disable_device to disable msi capabilities was redundant. quirk_pcie_pxh also called disable_msi_mode and is updated to use pci_msi_off. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		18 years ago
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boot	Merge branch '86xx' into for_paulus	18 years ago
configs	Merge branch '85xx' into for_paulus	18 years ago
kernel	[PATCH] msi: sanely support hardware level msi disabling	18 years ago
lib	…
math-emu	…
mm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial	18 years ago
oprofile	…
platforms	[PATCH] ps3: introduce CONFIG_PS3_ADVANCED	18 years ago
sysdev	[POWERPC] QE: clean up ucc_slow.c and ucc_fast.c	18 years ago
xmon	…
.gitignore	…
Kconfig	…
Kconfig.debug	…
Makefile	…