Messages in this thread Patch in this message | | | From | "Jiri Slaby (SUSE)" <> | Subject | [PATCH 12/46] x86/paravirt, lto: Mark native_steal_clock() as __visible_on_lto | Date | Mon, 14 Nov 2022 12:43:10 +0100 |
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From: Andi Kleen <ak@linux.intel.com>
Symbols referenced from assembler (either directly or e.f. from DEFINE_STATIC_KEY()) need to be global and visible in gcc LTO because they could end up in a different object file than the assembler. This can lead to linker errors without this patch.
So mark native_steal_clock() as __visible_on_lto.
[js] use __visible_on_lto
Cc: Juergen Gross <jgross@suse.com> Cc: "Srivatsa S. Bhat Cc: Alexey Makhalov <amakhalov@vmware.com> Cc: VMware PV-Drivers Reviewers <pv-drivers@vmware.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Martin Liska <mliska@suse.cz> Signed-off-by: Jiri Slaby <jslaby@suse.cz> --- arch/x86/kernel/paravirt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 7ca2d46c08cc..27a537cd4b0e 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -120,7 +120,7 @@ unsigned int paravirt_patch(u8 type, void *insn_buff, unsigned long addr, struct static_key paravirt_steal_enabled; struct static_key paravirt_steal_rq_enabled; -static u64 native_steal_clock(int cpu) +__visible_on_lto u64 native_steal_clock(int cpu) { return 0; } -- 2.38.1
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