A colleague noticed that the mpt2 and mpt3sas drivers do not correctly check the PCI master abort pattern in _base_wait_for_doorbell_ack. This pattern should be checked *prior* to any valid bit patterns, which would always return true since a PCI read on master abort sets all bits high.
The second patch adds similar checking to _base_wait_for_doorbell_int and _base_wait_for_doorbell_not_used to avoid potentially long loops around PCI reads. Joe Lawrence (2): mpt2sas,mpt3sas: correct master-abort checking in doorbell ack mpt2sas,mpt3sas: additional master abort checks drivers/scsi/mpt2sas/mpt2sas_base.c | 17 ++++++++++++----- drivers/scsi/mpt3sas/mpt3sas_base.c | 17 ++++++++++++----- 2 files changed, 24 insertions(+), 10 deletions(-) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
