提交 a2c65850 编写于 作者: N nagalakshmi.nandigama@lsi.com 提交者: James Bottomley

[SCSI] mpt2sas: Fix unsafe using smp_processor_id() in preemptible

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: NNagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com>
CC: stable@vger.kernel.org
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
上级 99becf13
......@@ -1792,7 +1792,7 @@ 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()];
}
/**
......
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