[ Upstream commit d9180e23fbfa3875424d3a6b28b71b072862a52a ] 'perf bench internals inject-build-id' suffers from the following error when only one DSO is collected. # perf bench internals inject-build-id -v Collected 1 DSOs traps: internals-injec[2305] trap divide error ip:557566ba6394 sp:7ffd4de97fe0 error:0 in perf[557566b2a000+23d000] Build-id injection benchmark Iteration #1 Floating point exception This patch removes the unnecessary minus one from the divisor which also corrects the randomization range. Signed-off-by: He Zhe <zhe.he@windriver.com> Fixes: 0bf02a0d80427f26 ("perf bench: Add build-id injection benchmark") Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240507065026.2652929-1-zhe.he@windriver.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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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