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623ba6ea45
Due to an off-by-one error introduced in commit73bbb94466("kallsyms: support "big" kernel symbols"), long symbols (which are currently only produced by Rust) can have their symbol type being wrongly parsed by kernel/kallsyms.c. This has been fixed in commitf3f9f42232("kallsyms: Fix wrong "big" kernel symbol type read from procfs"), and these symbols are now reported correctly. Drop the workaround in perf symbol that filter out these symbol types. Specifically, '1' and 'l' can never be generated by nm -- 'u' does indicate GNU unique, however such symbols are only generated by G++ for C++ templates, and are never generated by LLVM (LLVM generates weak symbols in such cases instead). 'N' can appear if symbols exist inside debug sections, and 'n' may appear for symbols inside note sections, however these sections do not typically have symbol (and they're explicitly filtered out by kallsyms). Therefore, the previous occurrence of these symbols types must be due to the off-by-one error and can be safely removed. Signed-off-by: Gary Guo <gary@garyguo.net> Acked-by: Miguel Ojeda <ojeda@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alice Ryhl <aliceryhl@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andreas Hindborg <a.hindborg@kernel.org> Cc: Benno Lossin <lossin@kernel.org> Cc: Bill Wendling <morbo@google.com> Cc: Björn Roy Baron <bjorn3_gh@protonmail.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Danilo Krummrich <dakr@kernel.org> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Justin Stitt <justinstitt@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Cc: Trevor Gross <tmgross@umich.edu> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>