Drop duplicate macros min() and MAX() definitions in prog_tests and use
MIN() or MAX() in sys/param.h instead.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/1ae276da9925c2de59b5bdc93b693b4c243e692e.1649462033.git.geliang.tang@suse.com
---
This patch was applied on bpf-next. It needs to merge to mptcp_net-next
too. Since the commit "selftests: bpf: add bpf_first test" will depend
on this patch.
---
 tools/testing/selftests/bpf/prog_tests/bpf_iter.c    | 4 +---
 tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c  | 6 ++----
 tools/testing/selftests/bpf/prog_tests/snprintf.c    | 4 +---
 tools/testing/selftests/bpf/prog_tests/tc_redirect.c | 1 -
 tools/testing/selftests/bpf/test_progs.h             | 1 +
 5 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
index 5142a7d130b2..2c403ddc8076 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
@@ -1192,8 +1192,6 @@ static void str_strip_first_line(char *str)
 	*dst = '\0';
 }
 
-#define min(a, b) ((a) < (b) ? (a) : (b))
-
 static void test_task_vma(void)
 {
 	int err, iter_fd = -1, proc_maps_fd = -1;
@@ -1229,7 +1227,7 @@ static void test_task_vma(void)
 	len = 0;
 	while (len < CMP_BUFFER_SIZE) {
 		err = read_fd_into_buffer(iter_fd, task_vma_output + len,
-					  min(read_size, CMP_BUFFER_SIZE - len));
+					  MIN(read_size, CMP_BUFFER_SIZE - len));
 		if (!err)
 			break;
 		if (CHECK(err < 0, "read_iter_fd", "read_iter_fd failed\n"))
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
index 8f7a1cef7d87..e9a9a31b2ffe 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
@@ -10,8 +10,6 @@
 #include "bpf_tcp_nogpl.skel.h"
 #include "bpf_dctcp_release.skel.h"
 
-#define min(a, b) ((a) < (b) ? (a) : (b))
-
 #ifndef ENOTSUPP
 #define ENOTSUPP 524
 #endif
@@ -53,7 +51,7 @@ static void *server(void *arg)
 
 	while (bytes < total_bytes && !READ_ONCE(stop)) {
 		nr_sent = send(fd, &batch,
-			       min(total_bytes - bytes, sizeof(batch)), 0);
+			       MIN(total_bytes - bytes, sizeof(batch)), 0);
 		if (nr_sent == -1 && errno == EINTR)
 			continue;
 		if (nr_sent == -1) {
@@ -146,7 +144,7 @@ static void do_test(const char *tcp_ca, const struct bpf_map *sk_stg_map)
 	/* recv total_bytes */
 	while (bytes < total_bytes && !READ_ONCE(stop)) {
 		nr_recv = recv(fd, &batch,
-			       min(total_bytes - bytes, sizeof(batch)), 0);
+			       MIN(total_bytes - bytes, sizeof(batch)), 0);
 		if (nr_recv == -1 && errno == EINTR)
 			continue;
 		if (nr_recv == -1)
diff --git a/tools/testing/selftests/bpf/prog_tests/snprintf.c b/tools/testing/selftests/bpf/prog_tests/snprintf.c
index 394ebfc3bbf3..4be6fdb78c6a 100644
--- a/tools/testing/selftests/bpf/prog_tests/snprintf.c
+++ b/tools/testing/selftests/bpf/prog_tests/snprintf.c
@@ -83,8 +83,6 @@ static void test_snprintf_positive(void)
 	test_snprintf__destroy(skel);
 }
 
-#define min(a, b) ((a) < (b) ? (a) : (b))
-
 /* Loads an eBPF object calling bpf_snprintf with up to 10 characters of fmt */
 static int load_single_snprintf(char *fmt)
 {
@@ -95,7 +93,7 @@ static int load_single_snprintf(char *fmt)
 	if (!skel)
 		return -EINVAL;
 
-	memcpy(skel->rodata->fmt, fmt, min(strlen(fmt) + 1, 10));
+	memcpy(skel->rodata->fmt, fmt, MIN(strlen(fmt) + 1, 10));
 
 	ret = test_snprintf_single__load(skel);
 	test_snprintf_single__destroy(skel);
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
index 7ad66a247c02..958dae769c52 100644
--- a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
+++ b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
@@ -949,7 +949,6 @@ static int tun_open(char *name)
 	return -1;
 }
 
-#define MAX(a, b) ((a) > (b) ? (a) : (b))
 enum {
 	SRC_TO_TARGET = 0,
 	TARGET_TO_SRC = 1,
diff --git a/tools/testing/selftests/bpf/test_progs.h b/tools/testing/selftests/bpf/test_progs.h
index eec4c7385b14..e6ae2e52a668 100644
--- a/tools/testing/selftests/bpf/test_progs.h
+++ b/tools/testing/selftests/bpf/test_progs.h
@@ -25,6 +25,7 @@ typedef __u16 __sum16;
 #include <sys/wait.h>
 #include <sys/types.h>
 #include <sys/time.h>
+#include <sys/param.h>
 #include <fcntl.h>
 #include <pthread.h>
 #include <linux/bpf.h>
-- 
2.34.1

Hi Geliang,

(without Daniel and Song)

On 26/04/2022 12:09, Geliang Tang wrote:
> Drop duplicate macros min() and MAX() definitions in prog_tests and use
> MIN() or MAX() in sys/param.h instead.
> 
> Signed-off-by: Geliang Tang <geliang.tang@suse.com>
> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
> Acked-by: Song Liu <songliubraving@fb.com>
> Link: https://lore.kernel.org/bpf/1ae276da9925c2de59b5bdc93b693b4c243e692e.1649462033.git.geliang.tang@suse.com
> ---
> This patch was applied on bpf-next. It needs to merge to mptcp_net-next
> too. Since the commit "selftests: bpf: add bpf_first test" will depend
> on this patch.

Thank you, just added in our tree (fixes for net-next):

New patches for t/upstream:
- 48ff9164f46e: selftests/bpf: Drop duplicate max/min definitions
- Results: 29d9117bba61..08fa6dc386aa (export)


Builds and tests are now in progress:

https://cirrus-ci.com/github/multipath-tcp/mptcp_net-next/export/20220426T102605
https://github.com/multipath-tcp/mptcp_net-next/actions/workflows/build-validation.yml?query=branch:export


Cheers,
Matt
-- 
Tessares | Belgium | Hybrid Access Solutions
www.tessares.net

Hi Geliang,

@Daniel, @Song: please ignore this message, sorry for that.

@Geliang: I think you accidentally let 'git send-email' adding in cc
people mentioned in the commit message. Don't worry, you are not the
first one and you will not be the last one :)


On 26/04/2022 12:09, Geliang Tang wrote:
> Drop duplicate macros min() and MAX() definitions in prog_tests and use
> MIN() or MAX() in sys/param.h instead.
> 
> Signed-off-by: Geliang Tang <geliang.tang@suse.com>
> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
> Acked-by: Song Liu <songliubraving@fb.com>
> Link: https://lore.kernel.org/bpf/1ae276da9925c2de59b5bdc93b693b4c243e692e.1649462033.git.geliang.tang@suse.com
> ---
> This patch was applied on bpf-next. It needs to merge to mptcp_net-next
> too. Since the commit "selftests: bpf: add bpf_first test" will depend
> on this patch.

Thank you, I'm going to add it in our tree.

You can also send me an email on the ML with a link to a message in lore
or a sha in a Git repo. It might be easier and less "risky" ;-)

Cheers,
Matt
-- 
Tessares | Belgium | Hybrid Access Solutions
www.tessares.net