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    SubjectRe: [PATCH 3/4] perf symbols: Record the build_ids of kernel modules too
    > +		snprintf(name, sizeof(name),
    > + "/sys/module/%s/notes/", line);

    The arch linker script for .ko's is free to fold notes into a single
    section with a different name or suchlike, and maybe future ones will. So
    it's not pedantically kosher to assume the name of the section rather than
    just looking at all the /sys/module/%s/notes/* files present until you find
    NT_GNU_BUILD_ID. (In practice there is probably only ever one file there
    to look at, but you never know.)


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