netdev - [PATCH bpf-next v3 01/27] bpf: selftests: Use libbpf 1.0 API mode instead of RLIMIT

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Message-Id: <20220405130858.12165-2-laoar.shao@gmail.com>
Date:   Tue,  5 Apr 2022 13:08:32 +0000
From:   Yafang Shao <laoar.shao@...il.com>
To:     andrii@...nel.org, ast@...nel.org, daniel@...earbox.net,
        kafai@...com, songliubraving@...com, yhs@...com,
        john.fastabend@...il.com, kpsingh@...nel.org, shuah@...nel.org
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org,
        linux-kselftest@...r.kernel.org, Yafang Shao <laoar.shao@...il.com>
Subject: [PATCH bpf-next v3 01/27] bpf: selftests: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCK in xdping

Explicitly set libbpf 1.0 API mode, then we can avoid using the deprecated
RLIMIT_MEMLOCK.

Signed-off-by: Yafang Shao <laoar.shao@...il.com>
---
 tools/testing/selftests/bpf/xdping.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/bpf/xdping.c b/tools/testing/selftests/bpf/xdping.c
index c567856fd1bc..5b6f977870f8 100644
--- a/tools/testing/selftests/bpf/xdping.c
+++ b/tools/testing/selftests/bpf/xdping.c
@@ -12,7 +12,6 @@
 #include <string.h>
 #include <unistd.h>
 #include <libgen.h>
-#include <sys/resource.h>
 #include <net/if.h>
 #include <sys/types.h>
 #include <sys/socket.h>
@@ -89,7 +88,6 @@ int main(int argc, char **argv)
 {
 	__u32 mode_flags = XDP_FLAGS_DRV_MODE | XDP_FLAGS_SKB_MODE;
 	struct addrinfo *a, hints = { .ai_family = AF_INET };
-	struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
 	__u16 count = XDPING_DEFAULT_COUNT;
 	struct pinginfo pinginfo = { 0 };
 	const char *optstr = "c:I:NsS";
@@ -167,10 +165,8 @@ int main(int argc, char **argv)
 		freeaddrinfo(a);
 	}
 
-	if (setrlimit(RLIMIT_MEMLOCK, &r)) {
-		perror("setrlimit(RLIMIT_MEMLOCK)");
-		return 1;
-	}
+	/* Use libbpf 1.0 API mode */
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
 
 	snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
 
-- 
2.17.1