From a2e7f0e3a4f0f23fe4cd8cc22da547872f0170bb Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 22 Oct 2013 09:07:56 -0700 Subject: x86, asmlinkage, paravirt: Make paravirt thunks global The paravirt thunks use a hack of using a static reference to a static function to reference that function from the top level statement. This assumes that gcc always generates static function names in a specific format, which is not necessarily true. Simply make these functions global and asmlinkage or __visible. This way the static __used variables are not needed and everything works. Functions with arguments are __visible to keep the register calling convention on 32bit. Changed in paravirt and in all users (Xen and vsmp) v2: Use __visible for functions with arguments Cc: Jeremy Fitzhardinge Cc: Ido Yariv Signed-off-by: Andi Kleen Link: http://lkml.kernel.org/r/1382458079-24450-5-git-send-email-andi@firstfloor.org Signed-off-by: H. Peter Anvin --- arch/x86/xen/irq.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/x86/xen/irq.c') diff --git a/arch/x86/xen/irq.c b/arch/x86/xen/irq.c index 0da7f863056f..f56c23b60a6c 100644 --- a/arch/x86/xen/irq.c +++ b/arch/x86/xen/irq.c @@ -22,7 +22,7 @@ void xen_force_evtchn_callback(void) (void)HYPERVISOR_xen_version(0, NULL); } -static unsigned long xen_save_fl(void) +asmlinkage unsigned long xen_save_fl(void) { struct vcpu_info *vcpu; unsigned long flags; @@ -40,7 +40,7 @@ static unsigned long xen_save_fl(void) } PV_CALLEE_SAVE_REGS_THUNK(xen_save_fl); -static void xen_restore_fl(unsigned long flags) +__visible void xen_restore_fl(unsigned long flags) { struct vcpu_info *vcpu; @@ -62,7 +62,7 @@ static void xen_restore_fl(unsigned long flags) } PV_CALLEE_SAVE_REGS_THUNK(xen_restore_fl); -static void xen_irq_disable(void) +asmlinkage void xen_irq_disable(void) { /* There's a one instruction preempt window here. We need to make sure we're don't switch CPUs between getting the vcpu @@ -73,7 +73,7 @@ static void xen_irq_disable(void) } PV_CALLEE_SAVE_REGS_THUNK(xen_irq_disable); -static void xen_irq_enable(void) +asmlinkage void xen_irq_enable(void) { struct vcpu_info *vcpu; -- cgit