From f99769dfba49593fdc1fec986960d4b0c12367f1 Mon Sep 17 00:00:00 2001
From: dpayne <darby.payne@gmail.com>
Date: Tue, 5 Jun 2018 13:45:19 -0700
Subject: [PATCH] Removing unneeded use of bpf_probe_read in funcslower

---
 tools/funcslower.py | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/tools/funcslower.py b/tools/funcslower.py
index 422ced5f4a47..5af4cb263181 100755
--- a/tools/funcslower.py
+++ b/tools/funcslower.py
@@ -174,10 +174,7 @@
     data.kernel_stack_id = stacks.get_stackid(ctx, 0 | BPF_F_REUSE_STACKID);
 
     if (data.kernel_stack_id >= 0) {
-        // populate extras to fix the kernel stack
-        struct pt_regs regs = {};
-        bpf_probe_read(&regs, sizeof(regs), (void *)ctx);
-        u64 ip = PT_REGS_IP(&regs);
+        u64 ip = PT_REGS_IP(ctx);
 
         // if ip isn't sane, leave key ips as zero for later checking
 #ifdef CONFIG_RANDOMIZE_MEMORY