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We used to access the 64-bit IRQ IMAP and ICLR registers of bus controllers 4-bytes in and as a 32-bit register word, since only the low 32-bits were relevant. This seemed like a good idea at the time. But the PCI-E controller requires full 8-byte 64-bit access to these registers, so we switched over to accessing them fully. SBUS was not adjusted properly, which broke interrupts completely. Signed-off-by: David S. Miller <davem@davemloft.net> |
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