[PATCH v3 1/3] selftests/bpf: Prepare to add -Wsign-compare for bpf tests

[Mehdi Ben Hadj Khelifa]

-Change only variable types for correct sign comparisons

Signed-off-by: Mehdi Ben Hadj Khelifa <mehdi.benhadjkhel...@gmail.com>
---
 tools/testing/selftests/bpf/progs/test_global_func11.c     | 2 +-
 tools/testing/selftests/bpf/progs/test_global_func12.c     | 2 +-
 tools/testing/selftests/bpf/progs/test_global_func13.c     | 2 +-
 tools/testing/selftests/bpf/progs/test_global_func9.c      | 2 +-
 tools/testing/selftests/bpf/progs/test_map_init.c          | 2 +-
 tools/testing/selftests/bpf/progs/test_parse_tcp_hdr_opt.c | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/bpf/progs/test_global_func11.c 
b/tools/testing/selftests/bpf/progs/test_global_func11.c
index 283e036dc401..2ad72bf0e07b 100644
--- a/tools/testing/selftests/bpf/progs/test_global_func11.c
+++ b/tools/testing/selftests/bpf/progs/test_global_func11.c
@@ -5,7 +5,7 @@
 #include "bpf_misc.h"
 
 struct S {
-       int x;
+       __u32 x;
 };
 
 __noinline int foo(const struct S *s)
diff --git a/tools/testing/selftests/bpf/progs/test_global_func12.c 
b/tools/testing/selftests/bpf/progs/test_global_func12.c
index 6e03d42519a6..53eab8ec6772 100644
--- a/tools/testing/selftests/bpf/progs/test_global_func12.c
+++ b/tools/testing/selftests/bpf/progs/test_global_func12.c
@@ -5,7 +5,7 @@
 #include "bpf_misc.h"
 
 struct S {
-       int x;
+       __u32 x;
 };
 
 __noinline int foo(const struct S *s)
diff --git a/tools/testing/selftests/bpf/progs/test_global_func13.c 
b/tools/testing/selftests/bpf/progs/test_global_func13.c
index 02ea80da75b5..c4afdfc9d92e 100644
--- a/tools/testing/selftests/bpf/progs/test_global_func13.c
+++ b/tools/testing/selftests/bpf/progs/test_global_func13.c
@@ -5,7 +5,7 @@
 #include "bpf_misc.h"
 
 struct S {
-       int x;
+       __u32 x;
 };
 
 __noinline int foo(const struct S *s)
diff --git a/tools/testing/selftests/bpf/progs/test_global_func9.c 
b/tools/testing/selftests/bpf/progs/test_global_func9.c
index 1f2cb0159b8d..9138d9bd08fc 100644
--- a/tools/testing/selftests/bpf/progs/test_global_func9.c
+++ b/tools/testing/selftests/bpf/progs/test_global_func9.c
@@ -5,7 +5,7 @@
 #include "bpf_misc.h"
 
 struct S {
-       int x;
+       __u32 x;
 };
 
 struct C {
diff --git a/tools/testing/selftests/bpf/progs/test_map_init.c 
b/tools/testing/selftests/bpf/progs/test_map_init.c
index c89d28ead673..311e6ac64588 100644
--- a/tools/testing/selftests/bpf/progs/test_map_init.c
+++ b/tools/testing/selftests/bpf/progs/test_map_init.c
@@ -22,7 +22,7 @@ int sysenter_getpgid(const void *ctx)
        /* Just do it for once, when called from our own test prog. This
         * ensures the map value is only updated for a single CPU.
         */
-       int cur_pid = bpf_get_current_pid_tgid() >> 32;
+       __u32 cur_pid = bpf_get_current_pid_tgid() >> 32;
 
        if (cur_pid == inPid)
                bpf_map_update_elem(&hashmap1, &inKey, &inValue, BPF_NOEXIST);
diff --git a/tools/testing/selftests/bpf/progs/test_parse_tcp_hdr_opt.c 
b/tools/testing/selftests/bpf/progs/test_parse_tcp_hdr_opt.c
index d9b2ba7ac340..4b8ab8716246 100644
--- a/tools/testing/selftests/bpf/progs/test_parse_tcp_hdr_opt.c
+++ b/tools/testing/selftests/bpf/progs/test_parse_tcp_hdr_opt.c
@@ -102,7 +102,7 @@ int xdp_ingress_v6(struct xdp_md *xdp)
        opt_state.byte_offset = sizeof(struct tcphdr) + tcp_offset;
 
        /* max number of bytes of options in tcp header is 40 bytes */
-       for (int i = 0; i < tcp_hdr_opt_max_opt_checks; i++) {
+       for (__u32 i = 0; i < tcp_hdr_opt_max_opt_checks; i++) {
                err = parse_hdr_opt(xdp, &opt_state);
 
                if (err || !opt_state.hdr_bytes_remaining)
-- 
2.51.0