From: Mirsad Todorovac <[email protected]>
Date: Mon, 12 Aug 2024 02:22:58 +0200
> GCC 13.2.0 reported warning about (void *) beeing 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);
>       |                 ^~~~~~
> 
> Casting param to (char *) silences the warning.
> 
> Fixes: d098d77232c37 ("selftest: af_unix: Add msg_oob.c.")
> Cc: "David S. Miller" <[email protected]>
> Cc: Eric Dumazet <[email protected]>
> Cc: Jakub Kicinski <[email protected]>
> Cc: Paolo Abeni <[email protected]>
> Cc: Shuah Khan <[email protected]>
> Cc: Kuniyuki Iwashima <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> Signed-off-by: Mirsad Todorovac <[email protected]>

Thanks for the patch!

but I found the same patch posted a bit earlier here,
and Abhinav will post v2.

https://lore.kernel.org/netdev/[email protected]/

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