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    SubjectRe: [PATCH v2 14/28] kbuild: lto: remove duplicate dependencies from .mod files
    On Thu, Sep 03, 2020 at 01:30:39PM -0700, Sami Tolvanen wrote:
    > With LTO, llvm-nm prints out symbols for each archive member
    > separately, which results in a lot of duplicate dependencies in the
    > .mod file when CONFIG_TRIM_UNUSED_SYMS is enabled. When a module
    > consists of several compilation units, the output can exceed the
    > default xargs command size limit and split the dependency list to
    > multiple lines, which results in used symbols getting trimmed.
    >
    > This change removes duplicate dependencies, which will reduce the
    > probability of this happening and makes .mod files smaller and
    > easier to read.
    >
    > Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

    Reviewed-by: Kees Cook <keescook@chromium.org>

    --
    Kees Cook

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