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commit4e14814454upstream. When locating the DWARF module for a given address, __find_debuginfo() requires a 'struct dso' passed via the userdata argument. However, this field is only set in __report_module() if the module is found in via dwfl_addrmodule(), not if it is found later via dwfl_report_elf(). Set userdata irrespective of how the DWARF module was found, as long as we found a module. Fixes:bf53fc6b5f("perf unwind: Fix separate debug info files when using elfutils' libdw's unwinder") Signed-off-by: Dave Rigby <d.rigby@me.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=211801 Acked-by: Jan Kratochvil <jan.kratochvil@redhat.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/linux-perf-users/20210218165654.36604-1-d.rigby@me.com/ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: "Tommi Rantala" <tommi.t.rantala@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.