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-rw-r--r--arch/x86_64/kernel/irq.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/irq.c b/arch/x86_64/kernel/irq.c
index 59518d4..3be0a7e 100644
--- a/arch/x86_64/kernel/irq.c
+++ b/arch/x86_64/kernel/irq.c
@@ -115,8 +115,8 @@ skip:
*/
asmlinkage unsigned int do_IRQ(struct pt_regs *regs)
{
- /* high bits used in ret_from_ code */
- unsigned irq = regs->orig_rax & 0xff;
+ /* high bit used in ret_from_ code */
+ unsigned irq = ~regs->orig_rax;
exit_idle();
irq_enter();
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