projects
/
linux-2.6-microblaze.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
samples/bpf, selftests/bpf: Use bpf_probe_read_kernel
[linux-2.6-microblaze.git]
/
samples
/
bpf
/
tracex1_kern.c
diff --git
a/samples/bpf/tracex1_kern.c
b/samples/bpf/tracex1_kern.c
index
8e2610e
..
3f4599c
100644
(file)
--- a/
samples/bpf/tracex1_kern.c
+++ b/
samples/bpf/tracex1_kern.c
@@
-11,7
+11,12
@@
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
-#define _(P) ({typeof(P) val = 0; bpf_probe_read(&val, sizeof(val), &P); val;})
+#define _(P) \
+ ({ \
+ typeof(P) val = 0; \
+ bpf_probe_read_kernel(&val, sizeof(val), &(P)); \
+ val; \
+ })
/* kprobe is NOT a stable ABI
* kernel functions can be removed, renamed or completely change semantics.
/* kprobe is NOT a stable ABI
* kernel functions can be removed, renamed or completely change semantics.
@@
-34,7
+39,7
@@
int bpf_prog1(struct pt_regs *ctx)
dev = _(skb->dev);
len = _(skb->len);
dev = _(skb->dev);
len = _(skb->len);
- bpf_probe_read(devname, sizeof(devname), dev->name);
+ bpf_probe_read
_kernel
(devname, sizeof(devname), dev->name);
if (devname[0] == 'l' && devname[1] == 'o') {
char fmt[] = "skb %p len %d\n";
if (devname[0] == 'l' && devname[1] == 'o') {
char fmt[] = "skb %p len %d\n";