[PATCH] scsi/ipr: Fix runaway IRQs when falling back from MSI to LSI

[Martin K. Petersen]

>>>>> "Benjamin" == Benjamin Herrenschmidt <benh at kernel.crashing.org> writes:

Benjamin> LSIs must be ack'ed with an MMIO otherwise they remain
Benjamin> asserted forever. This is controlled by the "clear_isr" flag.

Benjamin> While we set that flag properly when deciding initially
Benjamin> whether to use LSIs or MSIs, we fail to set it if we first
Benjamin> chose MSIs, the test fails, then fallback to LSIs.

Brian: Please review!

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Martin K. Petersen	Oracle Linux Engineering