tracing/histograms: String compares should not care about signed values
When comparing two strings for the "onmatch" histogram trigger, fields that are strings use string comparisons, which do not care about being signed or not. Do not fail to match two string fields if one is unsigned char array and the other is a signed char array. Link: https://lore.kernel.org/all/20211129123043.5cfd687a@gandalf.local.home/ Cc: stable@vgerk.kernel.org Cc: Tom Zanussi <zanussi@kernel.org> Cc: Yafang Shao <laoar.shao@gmail.com> Fixes: b05e89ae ("tracing: Accept different type for synthetic event fields") Reviewed-by: Masami Hiramatsu <mhiramatsu@kernel.org> Reported-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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