3.16.56-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: Peter Zijlstra <[email protected]> commit c940a3fb1e2e9b7d03228ab28f375fb5a47ff699 upstream. Replace indirect call with CALL_NOSPEC. Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: David Woodhouse <[email protected]> Cc: Andrea Arcangeli <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ashok Raj <[email protected]> Cc: Greg KH <[email protected]> Cc: Jun Nakajima <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: [email protected] Cc: Dave Hansen <[email protected]> Cc: Asit Mallick <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Jason Baron <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Dan Williams <[email protected]> Cc: Arjan Van De Ven <[email protected]> Cc: Tim Chen <[email protected]> Link: https://lkml.kernel.org/r/[email protected] [bwh: Backported to 3.16: also add ASM_CALL_CONSTRAINT] Signed-off-by: Ben Hutchings <[email protected]> --- --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -7248,13 +7248,14 @@ static void vmx_handle_external_intr(str "pushf\n\t" "orl $0x200, (%%" _ASM_SP ")\n\t" __ASM_SIZE(push) " $%c[cs]\n\t" - "call *%[entry]\n\t" + CALL_NOSPEC : #ifdef CONFIG_X86_64 - [sp]"=&r"(tmp) + [sp]"=&r"(tmp), #endif + ASM_CALL_CONSTRAINT : - [entry]"r"(entry), + THUNK_TARGET(entry), [ss]"i"(__KERNEL_DS), [cs]"i"(__KERNEL_CS) );
