diff options
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/dmar.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index accf58388bdb..6c4ea32ee6a9 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -1618,17 +1618,13 @@ irqreturn_t dmar_fault(int irq, void *dev_id) int reg, fault_index; u32 fault_status; unsigned long flag; - bool ratelimited; static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST); - /* Disable printing, simply clear the fault when ratelimited */ - ratelimited = !__ratelimit(&rs); - raw_spin_lock_irqsave(&iommu->register_lock, flag); fault_status = readl(iommu->reg + DMAR_FSTS_REG); - if (fault_status && !ratelimited) + if (fault_status && __ratelimit(&rs)) pr_err("DRHD: handling fault status reg %x\n", fault_status); /* TBD: ignore advanced fault log currently */ @@ -1638,6 +1634,8 @@ irqreturn_t dmar_fault(int irq, void *dev_id) fault_index = dma_fsts_fault_record_index(fault_status); reg = cap_fault_reg_offset(iommu->cap); while (1) { + /* Disable printing, simply clear the fault when ratelimited */ + bool ratelimited = !__ratelimit(&rs); u8 fault_reason; u16 source_id; u64 guest_addr; |