remove unused field 'pskb' in struct trace

'pskb' is not needed anymore, we can remove it now.

Signed-off-by: Menglong Dong <imagedong@tencent.com>

Author: menglongdong

legacy/nettrace.py

@@ -50,7 +50,7 @@ def is_ret_enabled(tracer):
     def is_valid(tracer):
         if Tracer.is_tp(tracer):
             return True
-        if 'skb' not in tracer and 'pskb' not in tracer:
+        if 'skb' not in tracer:
             return False
         return True
 
@@ -262,10 +262,6 @@ def _generate_tracer_code(tracer, index):
                 pad_index = tracer['skb']
                 skb_param = 'struct sk_buff *skb'
                 bpf_prep = ''
-            elif 'pskb' in tracer:
-                pad_index = tracer['pskb']
-                skb_param = 'struct sk_buff **pskb'
-                bpf_prep = 'struct sk_buff *skb = *pskb;'
             else:
                 return
 

legacy/skb.yaml

@@ -20,8 +20,7 @@ children:
     - name: __netif_receive_skb_core
       skb: 0
       if: kernelVersion < 504
-    - name: __netif_receive_skb_core
-      pskb: 0
+    - name: __netif_receive_skb_core_pskb
       if: kernelVersion >= 504
   - name: link-out
     desc: link layer (L2) of packet out

src/trace.h

@@ -44,7 +44,6 @@ typedef struct trace {
 	char	*regex;
 	char	*tp;
 	int	skb;
-	int	pskb;
 	struct list_head sibling;
 	struct list_head list;
 	struct list_head rules;