| 1 | // SPDX-License-Identifier: GPL-2.0 |
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| 2 | /* |
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| 3 | * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
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| 4 | */ |
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| 5 | |
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| 6 | #include <asm/errno.h> |
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| 7 | #include <init.h> |
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| 8 | #include <kern.h> |
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| 9 | #include <os.h> |
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| 10 | |
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| 11 | /* Changed by set_umid_arg */ |
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| 12 | static int umid_inited; |
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| 13 | |
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| 14 | static int __init set_umid_arg(char *name, int *add) |
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| 15 | { |
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| 16 | int err; |
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| 17 | |
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| 18 | if (umid_inited) { |
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| 19 | os_warn("umid already set\n" ); |
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| 20 | return 0; |
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| 21 | } |
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| 22 | |
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| 23 | *add = 0; |
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| 24 | err = set_umid(name); |
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| 25 | if (err == -EEXIST) |
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| 26 | os_warn("umid '%s' already in use\n" , name); |
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| 27 | else if (!err) |
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| 28 | umid_inited = 1; |
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| 29 | |
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| 30 | return 0; |
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| 31 | } |
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| 32 | |
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| 33 | __uml_setup("umid=" , set_umid_arg, |
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| 34 | "umid=<name>\n" |
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| 35 | " This is used to assign a unique identity to this UML machine and\n" |
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| 36 | " is used for naming the pid file and management console socket.\n\n" |
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| 37 | ); |
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| 38 | |
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| 39 | |
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