x86: change write_idt_entry signature

this patch changes write_idt_entry signature. It now takes a gate_desc
instead of the a and b parameters. It will allow it to be later unified
between i386 and x86_64.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
CC: Zachary Amsden <zach@vmware.com>
CC: Jeremy Fitzhardinge <Jeremy.Fitzhardinge.citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 8 insertions, 2 deletions

diff --git a/include/asm-x86/desc_32.h b/include/asm-x86/desc_32.h
index 77f1e5a4ad7c..54b2314f2ddf 100644
--- a/include/asm-x86/desc_32.h
+++ b/include/asm-x86/desc_32.h
@@ -70,9 +70,15 @@ static inline void pack_gate(gate_desc *gate,
 
 #define write_ldt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
 #define write_gdt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
-#define write_idt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b)
+#define write_idt_entry(dt, entry, g) native_write_idt_entry(dt, entry, g)
 #endif
 
+static inline void native_write_idt_entry(gate_desc *idt, int entry,
+                                          const gate_desc *gate)
+{
+        memcpy(&idt[entry], gate, sizeof(*gate));
+}
+
 static inline void write_dt_entry(struct desc_struct *dt,
                                   int entry, u32 entry_low, u32 entry_high)
 {
@@ -142,7 +148,7 @@ static inline void _set_gate(int gate, unsigned int type, void *addr, unsigned s
 {
         gate_desc g;
         pack_gate(&g, (unsigned long)addr, seg, type, 0);
-        write_idt_entry(idt_table, gate, g.a, g.b);
+        write_idt_entry(idt_table, gate, &g);
 }
 
 static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, const void *addr)