diff options
| author | nagalakshmi.nandigama@lsi.com <nagalakshmi.nandigama@lsi.com> | 2012-04-17 11:25:04 +0530 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2012-06-19 23:18:14 +0100 |
| commit | b3f92ffcf17680fc2064962c41debb424a2be403 (patch) | |
| tree | a1de5103d10f8aba0dcf821070ea4cec6fcab4c5 /drivers | |
| parent | 37a63c5c91599cc41c9e739696f5391e927ad178 (diff) | |
mpt2sas: Fix unsafe using smp_processor_id() in preemptible
commit a2c658505bf5c75516ee0a79287223e86a2474af upstream.
When CONFIG_DEBUG_PREEMPT is enabled, bug is observed in the smp_processor_id().
This is because smp_processor_id() is not called in preempt safe condition.
To fix this issue, use raw_smp_processor_id instead of smp_processor_id.
Signed-off-by: Nagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_base.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index ac336e13e564..e903077b1a11 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -1739,7 +1739,7 @@ static inline void _base_writeq(__u64 b, volatile void __iomem *addr, static inline u8 _base_get_msix_index(struct MPT2SAS_ADAPTER *ioc) { - return ioc->cpu_msix_table[smp_processor_id()]; + return ioc->cpu_msix_table[raw_smp_processor_id()]; } /** |