diff options
| author | David S. Miller <davem@davemloft.net> | 2016-08-18 01:17:32 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-08-18 01:17:32 -0400 |
| commit | 60747ef4d173c2747bf7f0377fb22846cb422195 (patch) | |
| tree | ea0faf33b952495c47909be1400c475a3f3821b0 /samples/kprobes/kretprobe_example.c | |
| parent | 484334198f8ce9552e20930fff9408ebf6bcf94d (diff) | |
| parent | 184ca823481c99dadd7d946e5afd4bb921eab30d (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor overlapping changes for both merge conflicts.
Resolution work done by Stephen Rothwell was used
as a reference.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples/kprobes/kretprobe_example.c')
| -rw-r--r-- | samples/kprobes/kretprobe_example.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/samples/kprobes/kretprobe_example.c b/samples/kprobes/kretprobe_example.c index ebb1d1aed547..7f9060f435cd 100644 --- a/samples/kprobes/kretprobe_example.c +++ b/samples/kprobes/kretprobe_example.c @@ -55,14 +55,14 @@ static int entry_handler(struct kretprobe_instance *ri, struct pt_regs *regs) */ static int ret_handler(struct kretprobe_instance *ri, struct pt_regs *regs) { - int retval = regs_return_value(regs); + unsigned long retval = regs_return_value(regs); struct my_data *data = (struct my_data *)ri->data; s64 delta; ktime_t now; now = ktime_get(); delta = ktime_to_ns(ktime_sub(now, data->entry_stamp)); - printk(KERN_INFO "%s returned %d and took %lld ns to execute\n", + pr_info("%s returned %lu and took %lld ns to execute\n", func_name, retval, (long long)delta); return 0; } @@ -82,11 +82,10 @@ static int __init kretprobe_init(void) my_kretprobe.kp.symbol_name = func_name; ret = register_kretprobe(&my_kretprobe); if (ret < 0) { - printk(KERN_INFO "register_kretprobe failed, returned %d\n", - ret); + pr_err("register_kretprobe failed, returned %d\n", ret); return -1; } - printk(KERN_INFO "Planted return probe at %s: %p\n", + pr_info("Planted return probe at %s: %p\n", my_kretprobe.kp.symbol_name, my_kretprobe.kp.addr); return 0; } @@ -94,11 +93,10 @@ static int __init kretprobe_init(void) static void __exit kretprobe_exit(void) { unregister_kretprobe(&my_kretprobe); - printk(KERN_INFO "kretprobe at %p unregistered\n", - my_kretprobe.kp.addr); + pr_info("kretprobe at %p unregistered\n", my_kretprobe.kp.addr); /* nmissed > 0 suggests that maxactive was set too low. */ - printk(KERN_INFO "Missed probing %d instances of %s\n", + pr_info("Missed probing %d instances of %s\n", my_kretprobe.nmissed, my_kretprobe.kp.symbol_name); } |