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Date: Tue, 08 Mar 2022 16:30:12 +0100 From: Peter Zijlstra <peterz@...radead.org> To: x86@...nel.org, joao@...rdrivepizza.com, hjl.tools@...il.com, jpoimboe@...hat.com, andrew.cooper3@...rix.com Cc: linux-kernel@...r.kernel.org, peterz@...radead.org, ndesaulniers@...gle.com, keescook@...omium.org, samitolvanen@...gle.com, mark.rutland@....com, alyssa.milburn@...el.com, mbenes@...e.cz, rostedt@...dmis.org, mhiramat@...nel.org, alexei.starovoitov@...il.com Subject: [PATCH v4 01/45] 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@...radead.org> --- include/asm-generic/vmlinux.lds.h | 4 ++++ 1 file changed, 4 insertions(+) --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -398,6 +398,7 @@ KEEP(*(__jump_table)) \ __stop___jump_table = .; +#ifdef CONFIG_HAVE_STATIC_CALL_INLINE #define STATIC_CALL_DATA \ . = ALIGN(8); \ __start_static_call_sites = .; \ @@ -406,6 +407,9 @@ __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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