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authorYonghong Song <yhs@fb.com>2017-09-07 18:36:15 -0700
committerDavid S. Miller <davem@davemloft.net>2017-09-11 14:28:45 -0700
commit609320c8a22715b74b39796930c3542719f8ab62 (patch)
tree35b1ec2606bd443edd2988c353ee7c4de6bb0748 /include
parentc6644d07eff6588b2dedf881279fb0d1c7783970 (diff)
downloadlinux-609320c8a22715b74b39796930c3542719f8ab62.tar.bz2
perf/bpf: fix a clang compilation issue
clang does not support variable length array for structure member. It has the following error during compilation: kernel/trace/trace_syscalls.c:568:17: error: fields must have a constant size: 'variable length array in structure' extension will never be supported unsigned long args[sys_data->nb_args]; ^ The fix is to use a fixed array length instead. Reported-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/syscalls.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 88951b795ee3..95606a2d556f 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -200,6 +200,8 @@ static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
+#define SYSCALL_DEFINE_MAXARGS 6
+
#define SYSCALL_DEFINEx(x, sname, ...) \
SYSCALL_METADATA(sname, x, __VA_ARGS__) \
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)