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| author | Jason Xing <kernelxing@tencent.com> | 2024-10-02 07:32:42 +0800 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2024-10-07 20:28:46 -0700 |
| commit | c50fc1cbfd71dcb1d70fd593b2af7c92af465921 (patch) | |
| tree | d9e738edfe76787b84bd39f7e8d67748f2f26627 /samples | |
| parent | 4236f114a3ffbbfd217436c08852e94cae372f57 (diff) | |
| download | lwn-c50fc1cbfd71dcb1d70fd593b2af7c92af465921.tar.gz lwn-c50fc1cbfd71dcb1d70fd593b2af7c92af465921.zip | |
bpf: syscall_nrs: Disable no previous prototype warnning
In some environments (gcc treated as error in W=1, which is default), if we
make -C samples/bpf/, it will be stopped because of
"no previous prototype" error like this:
../samples/bpf/syscall_nrs.c:7:6:
error: no previous prototype for ‘syscall_defines’ [-Werror=missing-prototypes]
void syscall_defines(void)
^~~~~~~~~~~~~~~
Actually, this file meets our expectatations because it will be converted to
a .h file. In this way, it's correct. Considering the warnning stopping us
compiling, we can remove the warnning directly.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/all/20241001012540.39007-1-kerneljasonxing@gmail.com/
Link: https://lore.kernel.org/all/CAEf4BzaVdr_0kQo=+jPLN++PvcU6pwTjaPVEA880kgDN94TZYw@mail.gmail.com/
Link: https://lore.kernel.org/bpf/20241001233242.98679-1-kerneljasonxing@gmail.com
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/syscall_nrs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/samples/bpf/syscall_nrs.c b/samples/bpf/syscall_nrs.c index 88f940052450..a6e600f3d477 100644 --- a/samples/bpf/syscall_nrs.c +++ b/samples/bpf/syscall_nrs.c @@ -2,6 +2,9 @@ #include <uapi/linux/unistd.h> #include <linux/kbuild.h> +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wmissing-prototypes" + #define SYSNR(_NR) DEFINE(SYS ## _NR, _NR) void syscall_defines(void) @@ -17,3 +20,5 @@ void syscall_defines(void) #endif } + +#pragma GCC diagnostic pop |