enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/arch/x86/um/ptrace_64.c
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@@ -52,14 +52,6 @@
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 int putreg(struct task_struct *child, int regno, unsigned long value)
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 {
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-#ifdef TIF_IA32
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-	/*
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-	 * Some code in the 64bit emulation may not be 64bit clean.
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-	 * Don't take any chances.
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-	 */
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-	if (test_tsk_thread_flag(child, TIF_IA32))
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-		value &= 0xffffffff;
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-#endif
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 	switch (regno) {
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 	case R8:
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 	case R9:
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@@ -137,10 +129,7 @@
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 unsigned long getreg(struct task_struct *child, int regno)
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 {
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 	unsigned long mask = ~0UL;
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-#ifdef TIF_IA32
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-	if (test_tsk_thread_flag(child, TIF_IA32))
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-		mask = 0xffffffff;
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-#endif
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+
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 	switch (regno) {
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 	case R8:
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 	case R9: