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Diffstat (limited to 'arch/ia64/kernel/machvec.c')
-rw-r--r--arch/ia64/kernel/machvec.c27
1 files changed, 18 insertions, 9 deletions
diff --git a/arch/ia64/kernel/machvec.c b/arch/ia64/kernel/machvec.c
index 13df337508e7..7ccb228ceedc 100644
--- a/arch/ia64/kernel/machvec.c
+++ b/arch/ia64/kernel/machvec.c
@@ -13,14 +13,6 @@
13struct ia64_machine_vector ia64_mv; 13struct ia64_machine_vector ia64_mv;
14EXPORT_SYMBOL(ia64_mv); 14EXPORT_SYMBOL(ia64_mv);
15 15
16static __initdata const char *mvec_name;
17static __init int setup_mvec(char *s)
18{
19 mvec_name = s;
20 return 0;
21}
22early_param("machvec", setup_mvec);
23
24static struct ia64_machine_vector * __init 16static struct ia64_machine_vector * __init
25lookup_machvec (const char *name) 17lookup_machvec (const char *name)
26{ 18{
@@ -41,7 +33,7 @@ machvec_init (const char *name)
41 struct ia64_machine_vector *mv; 33 struct ia64_machine_vector *mv;
42 34
43 if (!name) 35 if (!name)
44 name = mvec_name ? mvec_name : acpi_get_sysname(); 36 name = acpi_get_sysname();
45 mv = lookup_machvec(name); 37 mv = lookup_machvec(name);
46 if (!mv) 38 if (!mv)
47 panic("generic kernel failed to find machine vector for" 39 panic("generic kernel failed to find machine vector for"
@@ -51,6 +43,23 @@ machvec_init (const char *name)
51 printk(KERN_INFO "booting generic kernel on platform %s\n", name); 43 printk(KERN_INFO "booting generic kernel on platform %s\n", name);
52} 44}
53 45
46void __init
47machvec_init_from_cmdline(const char *cmdline)
48{
49 char str[64];
50 const char *start;
51 char *end;
52
53 if (! (start = strstr(cmdline, "machvec=")) )
54 return machvec_init(NULL);
55
56 strlcpy(str, start + strlen("machvec="), sizeof(str));
57 if ( (end = strchr(str, ' ')) )
58 *end = '\0';
59
60 return machvec_init(str);
61}
62
54#endif /* CONFIG_IA64_GENERIC */ 63#endif /* CONFIG_IA64_GENERIC */
55 64
56void 65void