Steven Rostedt 0497a9ebaf tools lib traceevent: Add direct access to dynamic arrays ... Jiri Olsa was writing a plugin for the cfg80211_tx_mlme_mgmt trace event, and was not able to get the implemented function working. The event's print fmt looks like: "netdev:%s(%d), ftype:0x%.2x", REC->name, REC->ifindex, __le16_to_cpup((__le16 *)__get_dynamic_array(frame)) As there's no helper function for __le16_to_cpup(), Jiri was creating one with a plugin. But unfortunately, it would not work even though he set up the plugin correctly. The problem is that the function parameters do not handle the helper function "__get_dynamic_array()", and that passes in a NULL pointer. Adding PRINT_DYNAMIC_ARRAY direct support to eval_num_arg() allows the use of __get_dynamic_array() in function parameters. Reported-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20131111160810.0ba9df7d@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2013-11-12 17:23:44 -03:00
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lk	tools lib lk: Uninclude linux/magic.h in debugfs.c	2013-09-19 15:08:53 -03:00
traceevent	tools lib traceevent: Add direct access to dynamic arrays	2013-11-12 17:23:44 -03:00