ANDROID: trace: net: use %pK for kernel pointers

We want to use network trace events in production
builds, to help diagnose Wifi problems. However, we
don't want to expose raw kernel pointers in such
builds.

Change the format specifier for the skbaddr field,
so that, if kptr_restrict is enabled, the pointers
will be reported as 0.

Bug: 30090733
Change-Id: Ic4bd583d37af6637343601feca875ee24479ddff
Signed-off-by: mukesh agrawal <quiche@google.com>

diff --git a/include/trace/events/net.h b/include/trace/events/net.h
index 49cc7c3de25221f2e014c80f12189bb1edc3b946..89d009e1093876cd9d0bfec3b14592cc4e75dc26 100644 (file)
--- a/include/trace/events/net.h
+++ b/include/trace/events/net.h
@@ -57,7 +57,7 @@ TRACE_EVENT(net_dev_start_xmit,
                __entry->gso_type = skb_shinfo(skb)->gso_type;
        ),
 
-       TP_printk("dev=%s queue_mapping=%u skbaddr=%p vlan_tagged=%d vlan_proto=0x%04x vlan_tci=0x%04x protocol=0x%04x ip_summed=%d len=%u data_len=%u network_offset=%d transport_offset_valid=%d transport_offset=%d tx_flags=%d gso_size=%d gso_segs=%d gso_type=%#x",
+       TP_printk("dev=%s queue_mapping=%u skbaddr=%pK vlan_tagged=%d vlan_proto=0x%04x vlan_tci=0x%04x protocol=0x%04x ip_summed=%d len=%u data_len=%u network_offset=%d transport_offset_valid=%d transport_offset=%d tx_flags=%d gso_size=%d gso_segs=%d gso_type=%#x",
                  __get_str(name), __entry->queue_mapping, __entry->skbaddr,
                  __entry->vlan_tagged, __entry->vlan_proto, __entry->vlan_tci,
                  __entry->protocol, __entry->ip_summed, __entry->len,
@@ -90,7 +90,7 @@ TRACE_EVENT(net_dev_xmit,
                __assign_str(name, dev->name);
        ),
 
-       TP_printk("dev=%s skbaddr=%p len=%u rc=%d",
+       TP_printk("dev=%s skbaddr=%pK len=%u rc=%d",
                __get_str(name), __entry->skbaddr, __entry->len, __entry->rc)
 );
 
@@ -112,7 +112,7 @@ DECLARE_EVENT_CLASS(net_dev_template,
                __assign_str(name, skb->dev->name);
        ),
 
-       TP_printk("dev=%s skbaddr=%p len=%u",
+       TP_printk("dev=%s skbaddr=%pK len=%u",
                __get_str(name), __entry->skbaddr, __entry->len)
 )
 
@@ -191,7 +191,7 @@ DECLARE_EVENT_CLASS(net_dev_rx_verbose_template,
                __entry->gso_type = skb_shinfo(skb)->gso_type;
        ),
 
-       TP_printk("dev=%s napi_id=%#x queue_mapping=%u skbaddr=%p vlan_tagged=%d vlan_proto=0x%04x vlan_tci=0x%04x protocol=0x%04x ip_summed=%d hash=0x%08x l4_hash=%d len=%u data_len=%u truesize=%u mac_header_valid=%d mac_header=%d nr_frags=%d gso_size=%d gso_type=%#x",
+       TP_printk("dev=%s napi_id=%#x queue_mapping=%u skbaddr=%pK vlan_tagged=%d vlan_proto=0x%04x vlan_tci=0x%04x protocol=0x%04x ip_summed=%d hash=0x%08x l4_hash=%d len=%u data_len=%u truesize=%u mac_header_valid=%d mac_header=%d nr_frags=%d gso_size=%d gso_type=%#x",
                  __get_str(name), __entry->napi_id, __entry->queue_mapping,
                  __entry->skbaddr, __entry->vlan_tagged, __entry->vlan_proto,
                  __entry->vlan_tci, __entry->protocol, __entry->ip_summed,