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ipr: add test for MSI interrupt support
authorWayne Boyer <wayneb@linux.vnet.ibm.com>
Tue, 16 Jun 2009 22:13:28 +0000 (15:13 -0700)
committerJames Bottomley <James.Bottomley@HansenPartnership.com>
Sun, 21 Jun 2009 15:52:46 +0000 (10:52 -0500)
The return value from pci_enable_msi() can not always be trusted.  This patch
adds code to generate an interrupt after MSI has been enabled and tests
whether or not we can receive and process it.  If the tests fails, then fall
back to LSI.

Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
drivers/scsi/ipr.c patch | blob | history
drivers/scsi/ipr.h patch | blob | history

diff --cc drivers/scsi/ipr.c
Simple merge
diff --cc drivers/scsi/ipr.h
Simple merge
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