perf jevents: Add new structure to pass json fields.
This patch adds new structure called 'json_event' inside jevents.c file to improve the callback prototype inside jevent files. Initially, whenever user want to add new field, they need to update in all function callback which make it more and more complex with increased number of parmeters. With this change, we just need to add it in new structure 'json_event'. Signed-off-by: NKajol Jain <kjain@linux.ibm.com> Reviewed-by: NAndi Kleen <ak@linux.intel.com> Reviewed-by: NJohn Garry <john.garry@huawei.com> Acked-by: NJiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Clarke <pc@us.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Link: http://lore.kernel.org/lkml/20200907064133.75090-3-kjain@linux.ibm.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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