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2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4

 kernel/arch/s390/kernel/sys_s390.c
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@@ -58,6 +58,7 @@
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 	return error;
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 }
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+#ifdef CONFIG_SYSVIPC
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 /*
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  * sys_ipc() is the de-multiplexer for the SysV IPC calls.
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  */
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@@ -74,19 +75,28 @@
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 	 * Therefore we can call the generic variant by simply passing the
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 	 * third parameter also as fifth parameter.
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 	 */
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-	return sys_ipc(call, first, second, third, ptr, third);
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+	return ksys_ipc(call, first, second, third, ptr, third);
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 }
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+#endif /* CONFIG_SYSVIPC */
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 SYSCALL_DEFINE1(s390_personality, unsigned int, personality)
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 {
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-	unsigned int ret;
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+	unsigned int ret = current->personality;
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 	if (personality(current->personality) == PER_LINUX32 &&
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 	    personality(personality) == PER_LINUX)
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 		personality |= PER_LINUX32;
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-	ret = sys_personality(personality);
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+
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+	if (personality != 0xffffffff)
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+		set_personality(personality);
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+
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 	if (personality(ret) == PER_LINUX32)
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 		ret &= ~PER_LINUX32;
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 	return ret;
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 }
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+
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+SYSCALL_DEFINE0(ni_syscall)
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+{
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+	return -ENOSYS;
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+}