| Message ID | 20240813162004.2464421-3-mtodorovac69@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,1/1] selftests: net: af_unix: convert param to const char* in __recvpair() to fix warning | expand |
From: Mirsad Todorovac <mtodorovac69@gmail.com> Date: Tue, 13 Aug 2024 18:20:06 +0200 > GCC 13.2.0 reported warning about (void *) being used as a param where (char *) > is expected: [...] > As Simon suggested, all calls to __recvpair() have char * as expected_buf param, so > it is safe to change param type from (const void *) to (const char *), which silences > the warning. > > Fixes: d098d77232c37 ("selftest: af_unix: Add msg_oob.c.") > Reported-by: Mirsad Todorovac <mtodorovac69@gmail.com> Usually Reported-by is not needed if it's same with SOB. and the same feedback to v1. Abhinav posted a fix earlier. https://lore.kernel.org/netdev/20240812191122.1092806-1-jain.abhinav177@gmail.com/ Thanks
diff --git a/tools/testing/selftests/net/af_unix/msg_oob.c b/tools/testing/selftests/net/af_unix/msg_oob.c index 16d0c172eaeb..535eb2c3d7d1 100644 --- a/tools/testing/selftests/net/af_unix/msg_oob.c +++ b/tools/testing/selftests/net/af_unix/msg_oob.c @@ -209,7 +209,7 @@ static void __sendpair(struct __test_metadata *_metadata, static void __recvpair(struct __test_metadata *_metadata, FIXTURE_DATA(msg_oob) *self, - const void *expected_buf, int expected_len, + const char *expected_buf, int expected_len, int buf_len, int flags) { int i, ret[2], recv_errno[2], expected_errno = 0;
GCC 13.2.0 reported warning about (void *) being used as a param where (char *) is expected: In file included from msg_oob.c:14: msg_oob.c: In function ‘__recvpair’: ../../kselftest_harness.h:106:40: warning: format ‘%s’ expects argument of type ‘char *’, \ but argument 6 has type ‘const void *’ [-Wformat=] 106 | fprintf(TH_LOG_STREAM, "# %s:%d:%s:" fmt "\n", \ | ^~~~~~~~~~~~~ ../../kselftest_harness.h:101:17: note: in expansion of macro ‘__TH_LOG’ 101 | __TH_LOG(fmt, ##__VA_ARGS__); \ | ^~~~~~~~ msg_oob.c:235:17: note: in expansion of macro ‘TH_LOG’ 235 | TH_LOG("Expected:%s", expected_errno ? strerror(expected_errno) : expected_buf); | ^~~~~~ ../../kselftest_harness.h:106:40: warning: format ‘%s’ expects argument of type ‘char *’, \ but argument 6 has type ‘const void *’ [-Wformat=] 106 | fprintf(TH_LOG_STREAM, "# %s:%d:%s:" fmt "\n", \ | ^~~~~~~~~~~~~ ../../kselftest_harness.h:101:17: note: in expansion of macro ‘__TH_LOG’ 101 | __TH_LOG(fmt, ##__VA_ARGS__); \ | ^~~~~~~~ msg_oob.c:259:25: note: in expansion of macro ‘TH_LOG’ 259 | TH_LOG("Expected:%s", expected_errno ? strerror(expected_errno) : expected_buf); | ^~~~~~ As Simon suggested, all calls to __recvpair() have char * as expected_buf param, so it is safe to change param type from (const void *) to (const char *), which silences the warning. Fixes: d098d77232c37 ("selftest: af_unix: Add msg_oob.c.") Reported-by: Mirsad Todorovac <mtodorovac69@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Kuniyuki Iwashima <kuniyu@amazon.com> Cc: netdev@vger.kernel.org Cc: linux-kselftest@vger.kernel.org Suggested-by: Simon Horman <horms@kernel.org> Signed-off-by: Mirsad Todorovac <mtodorovac69@gmail.com> --- v1 -> v2: fixed a typo. change funct param type rather than making two casts, as Simon suggested. changed Subject: line to reflect the modification. minor formatting changes. v1: initial version to fix the compiler warning. tools/testing/selftests/net/af_unix/msg_oob.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)