x86: move _set_gate and its users to a common location

This patch moves _set_gate and its users to desc.h. We can now
use common code for x86_64 and i386.

[ mingo@elte.hu: set_system_gate() fixes for nasty crashes. ]

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 45 deletions

diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index b0290c45319c..6bc92e6e5cc3 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -11,51 +11,6 @@
 
 #include <asm/segment.h>
 
-static inline void _set_gate(int gate, unsigned type, unsigned long func,
-                             unsigned dpl, unsigned ist)
-{
-        gate_desc s;
-
-        s.offset_low = PTR_LOW(func);
-        s.segment = __KERNEL_CS;
-        s.ist = ist;
-        s.p = 1;
-        s.dpl = dpl;
-        s.zero0 = 0;
-        s.zero1 = 0;
-        s.type = type;
-        s.offset_middle = PTR_MIDDLE(func);
-        s.offset_high = PTR_HIGH(func);
-        /*
-         * does not need to be atomic because it is only done once at
-         * setup time
-         */
-        write_idt_entry(idt_table, gate, &s);
-}
-
-static inline void set_intr_gate(int nr, void *func)
-{
-        BUG_ON((unsigned)nr > 0xFF);
-        _set_gate(nr, GATE_INTERRUPT, (unsigned long) func, 0, 0);
-}
-
-static inline void set_intr_gate_ist(int nr, void *func, unsigned ist)
-{
-        BUG_ON((unsigned)nr > 0xFF);
-        _set_gate(nr, GATE_INTERRUPT, (unsigned long) func, 0, ist);
-}
-
-static inline void set_system_gate(int nr, void *func)
-{
-        BUG_ON((unsigned)nr > 0xFF);
-        _set_gate(nr, GATE_INTERRUPT, (unsigned long) func, 3, 0);
-}
-
-static inline void set_system_gate_ist(int nr, void *func, unsigned ist)
-{
-        _set_gate(nr, GATE_INTERRUPT, (unsigned long) func, 3, ist);
-}
-
 static inline void set_tss_desc(unsigned cpu, void *addr)
 {
         struct desc_struct *d = get_cpu_gdt_table(cpu);