Revision f5f2b13129a6541debf8851bae843cbbf48298b7 authored by Eric W. Biederman on 05 March 2007, 08:30:07 UTC, committed by Linus Torvalds on 05 March 2007, 15:57:50 UTC
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>
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File | Mode | Size |
---|---|---|
Makefile | -rw-r--r-- | 282 bytes |
compat.c | -rw-r--r-- | 16.9 KB |
compat_mq.c | -rw-r--r-- | 4.0 KB |
ipc_sysctl.c | -rw-r--r-- | 4.1 KB |
mqueue.c | -rw-r--r-- | 29.8 KB |
msg.c | -rw-r--r-- | 20.5 KB |
msgutil.c | -rw-r--r-- | 2.3 KB |
sem.c | -rw-r--r-- | 34.6 KB |
shm.c | -rw-r--r-- | 25.7 KB |
util.c | -rw-r--r-- | 19.7 KB |
util.h | -rw-r--r-- | 3.3 KB |
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