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    Subject[tip: x86/core] static_call: Avoid building empty .static_call_sites
    The following commit has been merged into the x86/core branch of tip:

    Commit-ID: b44544fe0298ee2224960a31f795e317029e2a60
    Gitweb: https://git.kernel.org/tip/b44544fe0298ee2224960a31f795e317029e2a60
    Author: Peter Zijlstra <peterz@infradead.org>
    AuthorDate: Tue, 08 Mar 2022 16:30:12 +01:00
    Committer: Peter Zijlstra <peterz@infradead.org>
    CommitterDate: Tue, 15 Mar 2022 10:32:31 +01:00

    static_call: Avoid building empty .static_call_sites

    Without CONFIG_HAVE_STATIC_CALL_INLINE there's no point in creating
    the .static_call_sites section and it's related symbols.

    Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
    Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
    Link: https://lore.kernel.org/r/20220308154317.223798256@infradead.org
    ---
    include/asm-generic/vmlinux.lds.h | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
    index 42f3866..a41e623 100644
    --- a/include/asm-generic/vmlinux.lds.h
    +++ b/include/asm-generic/vmlinux.lds.h
    @@ -404,6 +404,7 @@
    KEEP(*(__jump_table)) \
    __stop___jump_table = .;

    +#ifdef CONFIG_HAVE_STATIC_CALL_INLINE
    #define STATIC_CALL_DATA \
    . = ALIGN(8); \
    __start_static_call_sites = .; \
    @@ -412,6 +413,9 @@
    __start_static_call_tramp_key = .; \
    KEEP(*(.static_call_tramp_key)) \
    __stop_static_call_tramp_key = .;
    +#else
    +#define STATIC_CALL_DATA
    +#endif

    /*
    * Allow architectures to handle ro_after_init data on their
    \
     
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