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authorFrederic Weisbecker <fweisbec@gmail.com>2009-08-26 23:09:51 -0400
committerFrederic Weisbecker <fweisbec@gmail.com>2009-08-26 23:09:51 -0400
commitaeaeae1187d7520f1c5559623f0a149da6a1c96e (patch)
treeabe8ba9315ce8857862d47f4c9cb3f78316fb814 /kernel/trace/trace_syscalls.c
parent24851d2447830e6cba4c4b641cb73e713f312373 (diff)
tracing: Restore the const qualifier for field names and types definition
Restore the const qualifier in field's name and type parameters of trace_define_field that was lost while solving a conflict. Fields names and types are defined as builtin constant strings in static TRACE_EVENTs. But kprobes allocates these dynamically. That said, we still want to always pass these strings as const char * in trace_define_fields() to avoid any further accidental writes on the pointed strings. Reported-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_syscalls.c')
-rw-r--r--kernel/trace/trace_syscalls.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 5931933587e9..a928dd004535 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -193,8 +193,8 @@ int syscall_enter_define_fields(struct ftrace_event_call *call)
193 return ret; 193 return ret;
194 194
195 for (i = 0; i < meta->nb_args; i++) { 195 for (i = 0; i < meta->nb_args; i++) {
196 ret = trace_define_field(call, (char *)meta->types[i], 196 ret = trace_define_field(call, meta->types[i],
197 (char *)meta->args[i], offset, 197 meta->args[i], offset,
198 sizeof(unsigned long), 0, 198 sizeof(unsigned long), 0,
199 FILTER_OTHER); 199 FILTER_OTHER);
200 offset += sizeof(unsigned long); 200 offset += sizeof(unsigned long);