Changbin Du d0a73d27b9 tracing: xen: Ordered comparison of function pointers
commit d0695e2351102affd8efae83989056bc4b275917 upstream.

Just as commit 0566e40ce7 ("tracing: initcall: Ordered comparison of
function pointers"), this patch fixes another remaining one in xen.h
found by clang-9.

In file included from arch/x86/xen/trace.c:21:
In file included from ./include/trace/events/xen.h:475:
In file included from ./include/trace/define_trace.h:102:
In file included from ./include/trace/trace_events.h:473:
./include/trace/events/xen.h:69:7: warning: ordered comparison of function \
pointers ('xen_mc_callback_fn_t' (aka 'void (*)(void *)') and 'xen_mc_callback_fn_t') [-Wordered-compare-function-pointers]
                    __field(xen_mc_callback_fn_t, fn)
                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./include/trace/trace_events.h:421:29: note: expanded from macro '__field'
                                ^
./include/trace/trace_events.h:407:6: note: expanded from macro '__field_ext'
                                 is_signed_type(type), filter_type);    \
                                 ^
./include/linux/trace_events.h:554:44: note: expanded from macro 'is_signed_type'
                                              ^

Fixes: c796f213a6934 ("xen/trace: add multicall tracing")
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-29 10:24:39 +01:00
..
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