Jin Yao reported issue with possible conflict between raw events and term values in pmu event syntax. Currently following syntax is resolved as raw event with 0xead value: uncore_imc_free_running/read/ instead of using 'read' term from uncore_imc_free_running pmu, because 'read' is correct raw event syntax with 0xead value. To solve this issue we do following: - check existing terms during rXXXX syntax processing and make them priority in case of conflict - allow pmu/r0x1234/ syntax to be able to specify conflicting raw event (implemented in previous patch) Also add automated tests for this and perf_pmu__parse_cleanup call to parse_events_terms, so the test gets properly cleaned up. Fixes: 3a6c51e4d66c ("perf parser: Add support to specify rXXX event with pmu") Reported-by: Jin Yao <yao.jin@linux.intel.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Jin Yao <yao.jin@linux.intel.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: http://lore.kernel.org/lkml/20200726075244.1191481-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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