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Diffstat (limited to 'arch/x86/kernel/irq_32.c')
-rw-r--r--arch/x86/kernel/irq_32.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index d3fde94f7345..b49616bcc16b 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -70,7 +70,7 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
70{ 70{
71 struct pt_regs *old_regs; 71 struct pt_regs *old_regs;
72 /* high bit used in ret_from_ code */ 72 /* high bit used in ret_from_ code */
73 int irq = ~regs->orig_eax; 73 int irq = ~regs->orig_ax;
74 struct irq_desc *desc = irq_desc + irq; 74 struct irq_desc *desc = irq_desc + irq;
75#ifdef CONFIG_4KSTACKS 75#ifdef CONFIG_4KSTACKS
76 union irq_ctx *curctx, *irqctx; 76 union irq_ctx *curctx, *irqctx;
@@ -88,13 +88,13 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
88#ifdef CONFIG_DEBUG_STACKOVERFLOW 88#ifdef CONFIG_DEBUG_STACKOVERFLOW
89 /* Debugging check for stack overflow: is there less than 1KB free? */ 89 /* Debugging check for stack overflow: is there less than 1KB free? */
90 { 90 {
91 long esp; 91 long sp;
92 92
93 __asm__ __volatile__("andl %%esp,%0" : 93 __asm__ __volatile__("andl %%esp,%0" :
94 "=r" (esp) : "0" (THREAD_SIZE - 1)); 94 "=r" (sp) : "0" (THREAD_SIZE - 1));
95 if (unlikely(esp < (sizeof(struct thread_info) + STACK_WARN))) { 95 if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) {
96 printk("do_IRQ: stack overflow: %ld\n", 96 printk("do_IRQ: stack overflow: %ld\n",
97 esp - sizeof(struct thread_info)); 97 sp - sizeof(struct thread_info));
98 dump_stack(); 98 dump_stack();
99 } 99 }
100 } 100 }
@@ -112,7 +112,7 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
112 * current stack (which is the irq stack already after all) 112 * current stack (which is the irq stack already after all)
113 */ 113 */
114 if (curctx != irqctx) { 114 if (curctx != irqctx) {
115 int arg1, arg2, ebx; 115 int arg1, arg2, bx;
116 116
117 /* build the stack frame on the IRQ stack */ 117 /* build the stack frame on the IRQ stack */
118 isp = (u32*) ((char*)irqctx + sizeof(*irqctx)); 118 isp = (u32*) ((char*)irqctx + sizeof(*irqctx));
@@ -128,10 +128,10 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
128 (curctx->tinfo.preempt_count & SOFTIRQ_MASK); 128 (curctx->tinfo.preempt_count & SOFTIRQ_MASK);
129 129
130 asm volatile( 130 asm volatile(
131 " xchgl %%ebx,%%esp \n" 131 " xchgl %%ebx,%%esp \n"
132 " call *%%edi \n" 132 " call *%%edi \n"
133 " movl %%ebx,%%esp \n" 133 " movl %%ebx,%%esp \n"
134 : "=a" (arg1), "=d" (arg2), "=b" (ebx) 134 : "=a" (arg1), "=d" (arg2), "=b" (bx)
135 : "0" (irq), "1" (desc), "2" (isp), 135 : "0" (irq), "1" (desc), "2" (isp),
136 "D" (desc->handle_irq) 136 "D" (desc->handle_irq)
137 : "memory", "cc" 137 : "memory", "cc"