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authorMichael Chan <mchan@broadcom.com>2007-05-07 00:26:15 -0700
committerDavid S. Miller <davem@davemloft.net>2007-05-07 00:26:15 -0700
commitc04cb34725fdcf5fdb4135d8fdfaf6f318f10e99 (patch)
treee4194a9f1a9914a25590dab0ca60285b29c9ac15 /drivers/usb/mon/mon_main.c
parent8ed5d97e5e0be0fb1aebad16f4c464613a0e472d (diff)
[TG3]: Eliminate spurious interrupts.
Spurious interrupts are often encountered especially on systems using the 8259 PIC mode. This is because the I/O write to deassert the interrupt is posted and won't get to the chip immediately. As a result, the IRQ may remain asserted after the IRQ handler exits, causing spurious interrupts. Flush the interrupt mailbox in non-MSI handlers to de-assert the IRQ immediately. This seems to be the most straight forward approach after discussion with Jeff Garzik and David Miller. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/usb/mon/mon_main.c')
0 files changed, 0 insertions, 0 deletions