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authorSantosh Nayak <santoshprasadnayak@gmail.com>2012-02-26 14:33:30 +0100
committerJames Bottomley <JBottomley@Parallels.com>2012-02-29 23:49:55 +0100
commitbdaefbf580cd200ae3230b6aacd1f4f2dadb18e3 (patch)
treed916cbf8b7cd029699875d0776193d81a7883d03 /Documentation/io-mapping.txt
parent[SCSI] ipr: update PCI ID definitions for new adapters (diff)
downloadlinux-bdaefbf580cd200ae3230b6aacd1f4f2dadb18e3.tar.xz
linux-bdaefbf580cd200ae3230b6aacd1f4f2dadb18e3.zip
[SCSI] pm8001: Fix bogus interrupt state flag issue.
Static checker is giving following warning: " error: calling 'spin_unlock_irqrestore()' with bogus flags" The code flow is as shown below: process_oq() --> process_one_iomb --> mpi_sata_completion In 'mpi_sata_completion' the first call for 'spin_unlock_irqrestore()' is with flags=0, which is as good as 'spin_unlock_irq()' ( unconditional interrupt enabling). So for better performance 'spin_unlock_irqrestore()' can be replaced with 'spin_unlock_irq()' and 'spin_lock_irqsave()' can be replaced by 'spin_lock_irq()'. Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com> Acked-by: Jack Wang <jack_wang@usish.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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