linux-kernel - [PATCH 1/5] iommu/vt-d: Remove unused dma map/unmap trace events

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Date:   Tue, 23 Mar 2021 09:05:56 +0800
From:   Lu Baolu <baolu.lu@...ux.intel.com>
To:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>
Cc:     ashok.raj@...el.com, kevin.tian@...el.com, jacob.jun.pan@...el.com,
        yi.l.liu@...el.com, iommu@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, Lu Baolu <baolu.lu@...ux.intel.com>
Subject: [PATCH 1/5] iommu/vt-d: Remove unused dma map/unmap trace events

With commit c588072bba6b5 ("iommu/vt-d: Convert intel iommu driver to
the iommu ops"), the trace events for dma map/unmap have no users any
more. Cleanup them to make the code neat.

Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
---
 include/trace/events/intel_iommu.h | 120 -----------------------------
 1 file changed, 120 deletions(-)

diff --git a/include/trace/events/intel_iommu.h b/include/trace/events/intel_iommu.h
index e801f4910522..d233f2916584 100644
--- a/include/trace/events/intel_iommu.h
+++ b/include/trace/events/intel_iommu.h
@@ -15,126 +15,6 @@
 #include <linux/tracepoint.h>
 #include <linux/intel-iommu.h>
 
-DECLARE_EVENT_CLASS(dma_map,
-	TP_PROTO(struct device *dev, dma_addr_t dev_addr, phys_addr_t phys_addr,
-		 size_t size),
-
-	TP_ARGS(dev, dev_addr, phys_addr, size),
-
-	TP_STRUCT__entry(
-		__string(dev_name, dev_name(dev))
-		__field(dma_addr_t, dev_addr)
-		__field(phys_addr_t, phys_addr)
-		__field(size_t,	size)
-	),
-
-	TP_fast_assign(
-		__assign_str(dev_name, dev_name(dev));
-		__entry->dev_addr = dev_addr;
-		__entry->phys_addr = phys_addr;
-		__entry->size = size;
-	),
-
-	TP_printk("dev=%s dev_addr=0x%llx phys_addr=0x%llx size=%zu",
-		  __get_str(dev_name),
-		  (unsigned long long)__entry->dev_addr,
-		  (unsigned long long)__entry->phys_addr,
-		  __entry->size)
-);
-
-DEFINE_EVENT(dma_map, map_single,
-	TP_PROTO(struct device *dev, dma_addr_t dev_addr, phys_addr_t phys_addr,
-		 size_t size),
-	TP_ARGS(dev, dev_addr, phys_addr, size)
-);
-
-DEFINE_EVENT(dma_map, bounce_map_single,
-	TP_PROTO(struct device *dev, dma_addr_t dev_addr, phys_addr_t phys_addr,
-		 size_t size),
-	TP_ARGS(dev, dev_addr, phys_addr, size)
-);
-
-DECLARE_EVENT_CLASS(dma_unmap,
-	TP_PROTO(struct device *dev, dma_addr_t dev_addr, size_t size),
-
-	TP_ARGS(dev, dev_addr, size),
-
-	TP_STRUCT__entry(
-		__string(dev_name, dev_name(dev))
-		__field(dma_addr_t, dev_addr)
-		__field(size_t,	size)
-	),
-
-	TP_fast_assign(
-		__assign_str(dev_name, dev_name(dev));
-		__entry->dev_addr = dev_addr;
-		__entry->size = size;
-	),
-
-	TP_printk("dev=%s dev_addr=0x%llx size=%zu",
-		  __get_str(dev_name),
-		  (unsigned long long)__entry->dev_addr,
-		  __entry->size)
-);
-
-DEFINE_EVENT(dma_unmap, unmap_single,
-	TP_PROTO(struct device *dev, dma_addr_t dev_addr, size_t size),
-	TP_ARGS(dev, dev_addr, size)
-);
-
-DEFINE_EVENT(dma_unmap, unmap_sg,
-	TP_PROTO(struct device *dev, dma_addr_t dev_addr, size_t size),
-	TP_ARGS(dev, dev_addr, size)
-);
-
-DEFINE_EVENT(dma_unmap, bounce_unmap_single,
-	TP_PROTO(struct device *dev, dma_addr_t dev_addr, size_t size),
-	TP_ARGS(dev, dev_addr, size)
-);
-
-DECLARE_EVENT_CLASS(dma_map_sg,
-	TP_PROTO(struct device *dev, int index, int total,
-		 struct scatterlist *sg),
-
-	TP_ARGS(dev, index, total, sg),
-
-	TP_STRUCT__entry(
-		__string(dev_name, dev_name(dev))
-		__field(dma_addr_t, dev_addr)
-		__field(phys_addr_t, phys_addr)
-		__field(size_t,	size)
-		__field(int, index)
-		__field(int, total)
-	),
-
-	TP_fast_assign(
-		__assign_str(dev_name, dev_name(dev));
-		__entry->dev_addr = sg->dma_address;
-		__entry->phys_addr = sg_phys(sg);
-		__entry->size = sg->dma_length;
-		__entry->index = index;
-		__entry->total = total;
-	),
-
-	TP_printk("dev=%s [%d/%d] dev_addr=0x%llx phys_addr=0x%llx size=%zu",
-		  __get_str(dev_name), __entry->index, __entry->total,
-		  (unsigned long long)__entry->dev_addr,
-		  (unsigned long long)__entry->phys_addr,
-		  __entry->size)
-);
-
-DEFINE_EVENT(dma_map_sg, map_sg,
-	TP_PROTO(struct device *dev, int index, int total,
-		 struct scatterlist *sg),
-	TP_ARGS(dev, index, total, sg)
-);
-
-DEFINE_EVENT(dma_map_sg, bounce_map_sg,
-	TP_PROTO(struct device *dev, int index, int total,
-		 struct scatterlist *sg),
-	TP_ARGS(dev, index, total, sg)
-);
-
 TRACE_EVENT(qi_submit,
 	TP_PROTO(struct intel_iommu *iommu, u64 qw0, u64 qw1, u64 qw2, u64 qw3),
 
-- 
2.25.1