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-rw-r--r--samples/bpf/offwaketime_kern.c10
-rw-r--r--samples/bpf/tracex1_kern.c4
-rw-r--r--samples/bpf/tracex2_kern.c4
-rw-r--r--samples/bpf/tracex5_kern.c6
4 files changed, 12 insertions, 12 deletions
diff --git a/samples/bpf/offwaketime_kern.c b/samples/bpf/offwaketime_kern.c
index 983629a31c79..e7d9a0a3d45b 100644
--- a/samples/bpf/offwaketime_kern.c
+++ b/samples/bpf/offwaketime_kern.c
@@ -11,7 +11,7 @@
#include <linux/version.h>
#include <linux/sched.h>
-#define _(P) ({typeof(P) val = 0; bpf_probe_read(&val, sizeof(val), &P); val;})
+#define _(P) ({typeof(P) val; bpf_probe_read(&val, sizeof(val), &P); val;})
#define MINBLOCK_US 1
@@ -61,7 +61,7 @@ SEC("kprobe/try_to_wake_up")
int waker(struct pt_regs *ctx)
{
struct task_struct *p = (void *) PT_REGS_PARM1(ctx);
- struct wokeby_t woke = {};
+ struct wokeby_t woke;
u32 pid;
pid = _(p->pid);
@@ -75,17 +75,19 @@ int waker(struct pt_regs *ctx)
static inline int update_counts(void *ctx, u32 pid, u64 delta)
{
- struct key_t key = {};
struct wokeby_t *woke;
u64 zero = 0, *val;
+ struct key_t key;
+ __builtin_memset(&key.waker, 0, sizeof(key.waker));
bpf_get_current_comm(&key.target, sizeof(key.target));
key.tret = bpf_get_stackid(ctx, &stackmap, STACKID_FLAGS);
+ key.wret = 0;
woke = bpf_map_lookup_elem(&wokeby, &pid);
if (woke) {
key.wret = woke->ret;
- __builtin_memcpy(&key.waker, woke->name, TASK_COMM_LEN);
+ __builtin_memcpy(&key.waker, woke->name, sizeof(key.waker));
bpf_map_delete_elem(&wokeby, &pid);
}
diff --git a/samples/bpf/tracex1_kern.c b/samples/bpf/tracex1_kern.c
index 3f450a8fa1f3..107da148820f 100644
--- a/samples/bpf/tracex1_kern.c
+++ b/samples/bpf/tracex1_kern.c
@@ -23,16 +23,14 @@ int bpf_prog1(struct pt_regs *ctx)
/* attaches to kprobe netif_receive_skb,
* looks for packets on loobpack device and prints them
*/
- char devname[IFNAMSIZ] = {};
+ char devname[IFNAMSIZ];
struct net_device *dev;
struct sk_buff *skb;
int len;
/* non-portable! works for the given kernel only */
skb = (struct sk_buff *) PT_REGS_PARM1(ctx);
-
dev = _(skb->dev);
-
len = _(skb->len);
bpf_probe_read(devname, sizeof(devname), dev->name);
diff --git a/samples/bpf/tracex2_kern.c b/samples/bpf/tracex2_kern.c
index 6d6eefd0d465..5e11c20ce5ec 100644
--- a/samples/bpf/tracex2_kern.c
+++ b/samples/bpf/tracex2_kern.c
@@ -66,7 +66,7 @@ struct hist_key {
char comm[16];
u64 pid_tgid;
u64 uid_gid;
- u32 index;
+ u64 index;
};
struct bpf_map_def SEC("maps") my_hist_map = {
@@ -82,7 +82,7 @@ int bpf_prog3(struct pt_regs *ctx)
long write_size = PT_REGS_PARM3(ctx);
long init_val = 1;
long *value;
- struct hist_key key = {};
+ struct hist_key key;
key.index = log2l(write_size);
key.pid_tgid = bpf_get_current_pid_tgid();
diff --git a/samples/bpf/tracex5_kern.c b/samples/bpf/tracex5_kern.c
index b3f4295bf288..f95f232cbab9 100644
--- a/samples/bpf/tracex5_kern.c
+++ b/samples/bpf/tracex5_kern.c
@@ -22,7 +22,7 @@ struct bpf_map_def SEC("maps") progs = {
SEC("kprobe/seccomp_phase1")
int bpf_prog1(struct pt_regs *ctx)
{
- struct seccomp_data sd = {};
+ struct seccomp_data sd;
bpf_probe_read(&sd, sizeof(sd), (void *)PT_REGS_PARM1(ctx));
@@ -40,7 +40,7 @@ int bpf_prog1(struct pt_regs *ctx)
/* we jump here when syscall number == __NR_write */
PROG(__NR_write)(struct pt_regs *ctx)
{
- struct seccomp_data sd = {};
+ struct seccomp_data sd;
bpf_probe_read(&sd, sizeof(sd), (void *)PT_REGS_PARM1(ctx));
if (sd.args[2] == 512) {
@@ -53,7 +53,7 @@ PROG(__NR_write)(struct pt_regs *ctx)
PROG(__NR_read)(struct pt_regs *ctx)
{
- struct seccomp_data sd = {};
+ struct seccomp_data sd;
bpf_probe_read(&sd, sizeof(sd), (void *)PT_REGS_PARM1(ctx));
if (sd.args[2] > 128 && sd.args[2] <= 1024) {