samples: bpf: Do not define bpf_printk macro

The bpf_printk macro was moved to bpf_helpers.h which is included in all
example programs.
Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

samples/bpf/hbm_kern.h

@@ -30,15 +30,8 @@
 #define ALLOW_PKT	1
 #define TCP_ECN_OK	1
 
-#define HBM_DEBUG 0  // Set to 1 to enable debugging
-#if HBM_DEBUG
-#define bpf_printk(fmt, ...)					\
-({								\
-	char ____fmt[] = fmt;					\
-	bpf_trace_printk(____fmt, sizeof(____fmt),		\
-			 ##__VA_ARGS__);			\
-})
-#else
+#ifndef HBM_DEBUG  // Define HBM_DEBUG to enable debugging
+#undef bpf_printk
 #define bpf_printk(fmt, ...)
 #endif
 

samples/bpf/tcp_basertt_kern.c

@@ -21,13 +21,6 @@
 
 #define DEBUG 1
 
-#define bpf_printk(fmt, ...)					\
-({								\
-	       char ____fmt[] = fmt;				\
-	       bpf_trace_printk(____fmt, sizeof(____fmt),	\
-				##__VA_ARGS__);			\
-})
-
 SEC("sockops")
 int bpf_basertt(struct bpf_sock_ops *skops)
 {

samples/bpf/tcp_bufs_kern.c

@@ -22,13 +22,6 @@
 
 #define DEBUG 1
 
-#define bpf_printk(fmt, ...)					\
-({								\
-	       char ____fmt[] = fmt;				\
-	       bpf_trace_printk(____fmt, sizeof(____fmt),	\
-				##__VA_ARGS__);			\
-})
-
 SEC("sockops")
 int bpf_bufs(struct bpf_sock_ops *skops)
 {

samples/bpf/tcp_clamp_kern.c

@@ -22,13 +22,6 @@
 
 #define DEBUG 1
 
-#define bpf_printk(fmt, ...)					\
-({								\
-	       char ____fmt[] = fmt;				\
-	       bpf_trace_printk(____fmt, sizeof(____fmt),	\
-				##__VA_ARGS__);			\
-})
-
 SEC("sockops")
 int bpf_clamp(struct bpf_sock_ops *skops)
 {

samples/bpf/tcp_cong_kern.c

@@ -21,13 +21,6 @@
 
 #define DEBUG 1
 
-#define bpf_printk(fmt, ...)					\
-({								\
-	       char ____fmt[] = fmt;				\
-	       bpf_trace_printk(____fmt, sizeof(____fmt),	\
-				##__VA_ARGS__);			\
-})
-
 SEC("sockops")
 int bpf_cong(struct bpf_sock_ops *skops)
 {

samples/bpf/tcp_iw_kern.c

@@ -22,13 +22,6 @@
 
 #define DEBUG 1
 
-#define bpf_printk(fmt, ...)					\
-({								\
-	       char ____fmt[] = fmt;				\
-	       bpf_trace_printk(____fmt, sizeof(____fmt),	\
-				##__VA_ARGS__);			\
-})
-
 SEC("sockops")
 int bpf_iw(struct bpf_sock_ops *skops)
 {

samples/bpf/tcp_rwnd_kern.c

@@ -21,13 +21,6 @@
 
 #define DEBUG 1
 
-#define bpf_printk(fmt, ...)					\
-({								\
-	       char ____fmt[] = fmt;				\
-	       bpf_trace_printk(____fmt, sizeof(____fmt),	\
-				##__VA_ARGS__);			\
-})
-
 SEC("sockops")
 int bpf_rwnd(struct bpf_sock_ops *skops)
 {

samples/bpf/tcp_synrto_kern.c

@@ -21,13 +21,6 @@
 
 #define DEBUG 1
 
-#define bpf_printk(fmt, ...)					\
-({								\
-	       char ____fmt[] = fmt;				\
-	       bpf_trace_printk(____fmt, sizeof(____fmt),	\
-				##__VA_ARGS__);			\
-})
-
 SEC("sockops")
 int bpf_synrto(struct bpf_sock_ops *skops)
 {

samples/bpf/tcp_tos_reflect_kern.c

@@ -20,13 +20,6 @@
 
 #define DEBUG 1
 
-#define bpf_printk(fmt, ...)					\
-({								\
-	       char ____fmt[] = fmt;				\
-	       bpf_trace_printk(____fmt, sizeof(____fmt),	\
-				##__VA_ARGS__);			\
-})
-
 SEC("sockops")
 int bpf_basertt(struct bpf_sock_ops *skops)
 {

samples/bpf/xdp_sample_pkts_kern.c

@@ -7,13 +7,6 @@
 #define SAMPLE_SIZE 64ul
 #define MAX_CPUS 128
 
-#define bpf_printk(fmt, ...)					\
-({								\
-	       char ____fmt[] = fmt;				\
-	       bpf_trace_printk(____fmt, sizeof(____fmt),	\
-				##__VA_ARGS__);			\
-})
-
 struct bpf_map_def SEC("maps") my_map = {
 	.type = BPF_MAP_TYPE_PERF_EVENT_ARRAY,
 	.key_size = sizeof(int),