[PATCH] Don't pass boot parameters to argv_init[]

The boot cmdline is parsed in parse_early_param() and
parse_args(,unknown_bootoption).

And __setup() is used in obsolete_checksetup().

	start_kernel()
		-> parse_args()
			-> unknown_bootoption()
				-> obsolete_checksetup()

If __setup()'s callback (->setup_func()) returns 1 in
obsolete_checksetup(), obsolete_checksetup() thinks a parameter was
handled.

If ->setup_func() returns 0, obsolete_checksetup() tries other
->setup_func().  If all ->setup_func() that matched a parameter returns 0,
a parameter is seted to argv_init[].

Then, when runing /sbin/init or init=app, argv_init[] is passed to the app.
If the app doesn't ignore those arguments, it will warning and exit.

This patch fixes a wrong usage of it, however fixes obvious one only.

Signed-off-by: OGAWA Hirofumi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

arch/alpha/kernel/core_marvel.c

@@ -435,7 +435,7 @@ marvel_specify_io7(char *str)
 		str = pchar;
 	} while(*str);
 
-	return 0;
+	return 1;
 }
 __setup("io7=", marvel_specify_io7);
 

arch/i386/kernel/apic.c

@@ -752,7 +752,7 @@ static int __init apic_set_verbosity(char *str)
 		printk(KERN_WARNING "APIC Verbosity level %s not recognised"
 				" use apic=verbose or apic=debug\n", str);
 
-	return 0;
+	return 1;
 }
 
 __setup("apic=", apic_set_verbosity);

arch/i386/kernel/cpu/mcheck/mce.c

@@ -64,13 +64,13 @@ void mcheck_init(struct cpuinfo_x86 *c)
 static int __init mcheck_disable(char *str)
 {
 	mce_disabled = 1;
-	return 0;
+	return 1;
 }
 
 static int __init mcheck_enable(char *str)
 {
 	mce_disabled = -1;
-	return 0;
+	return 1;
 }
 
 __setup("nomce", mcheck_disable);

arch/i386/kernel/io_apic.c

@@ -644,7 +644,7 @@ failed:
 int __init irqbalance_disable(char *str)
 {
 	irqbalance_disabled = 1;
-	return 0;
+	return 1;
 }
 
 __setup("noirqbalance", irqbalance_disable);

arch/i386/kernel/traps.c

@@ -1193,6 +1193,6 @@ void __init trap_init(void)
 static int __init kstack_setup(char *s)
 {
 	kstack_depth_to_print = simple_strtoul(s, NULL, 0);
-	return 0;
+	return 1;
 }
 __setup("kstack=", kstack_setup);

arch/powerpc/kernel/crash_dump.c

@@ -61,7 +61,7 @@ static int __init parse_elfcorehdr(char *p)
 	if (p)
 		elfcorehdr_addr = memparse(p, &p);
 
-	return 0;
+	return 1;
 }
 __setup("elfcorehdr=", parse_elfcorehdr);
 #endif
@@ -71,7 +71,7 @@ static int __init parse_savemaxmem(char *p)
 	if (p)
 		saved_max_pfn = (memparse(p, &p) >> PAGE_SHIFT) - 1;
 
-	return 0;
+	return 1;
 }
 __setup("savemaxmem=", parse_savemaxmem);
 

arch/sh/kernel/cpu/init.c

@@ -30,7 +30,7 @@ static int x##_disabled __initdata = 0;		\
 static int __init x##_setup(char *opts)		\
 {						\
 	x##_disabled = 1;			\
-	return 0;				\
+	return 1;				\
 }						\
 __setup("no" __stringify(x), x##_setup);
 

arch/x86_64/kernel/apic.c

@@ -615,7 +615,7 @@ static int __init apic_set_verbosity(char *str)
 		printk(KERN_WARNING "APIC Verbosity level %s not recognised"
 				" use apic=verbose or apic=debug", str);
 
-	return 0;
+	return 1;
 }
 
 __setup("apic=", apic_set_verbosity);
@@ -1137,35 +1137,35 @@ int __init APIC_init_uniprocessor (void)
 static __init int setup_disableapic(char *str) 
 { 
 	disable_apic = 1;
-	return 0;
+	return 1;
 } 
 
 static __init int setup_nolapic(char *str) 
 { 
 	disable_apic = 1;
-	return 0;
+	return 1;
 } 
 
 static __init int setup_noapictimer(char *str) 
 { 
 	if (str[0] != ' ' && str[0] != 0)
-		return -1;
+		return 0;
 	disable_apic_timer = 1;
-	return 0;
+	return 1;
 } 
 
 static __init int setup_apicmaintimer(char *str)
 {
 	apic_runs_main_timer = 1;
 	nohpet = 1;
-	return 0;
+	return 1;
 }
 __setup("apicmaintimer", setup_apicmaintimer);
 
 static __init int setup_noapicmaintimer(char *str)
 {
 	apic_runs_main_timer = -1;
-	return 0;
+	return 1;
 }
 __setup("noapicmaintimer", setup_noapicmaintimer);
 

arch/x86_64/kernel/early_printk.c

@@ -221,7 +221,7 @@ int __init setup_early_printk(char *opt)
 	char buf[256];
 
 	if (early_console_initialized)
-		return -1;
+		return 1;
 
 	strlcpy(buf,opt,sizeof(buf));
 	space = strchr(buf, ' ');

arch/x86_64/kernel/mce.c

@@ -501,7 +501,7 @@ static struct miscdevice mce_log_device = {
 static int __init mcheck_disable(char *str)
 {
 	mce_dont_init = 1;
-	return 0;
+	return 1;
 }
 
 /* mce=off disables machine check. Note you can reenable it later
@@ -521,7 +521,7 @@ static int __init mcheck_enable(char *str)
 		get_option(&str, &tolerant);
 	else
 		printk("mce= argument %s ignored. Please use /sys", str); 
-	return 0;
+	return 1;
 }
 
 __setup("nomce", mcheck_disable);

arch/x86_64/kernel/pmtimer.c

@@ -121,7 +121,7 @@ unsigned int do_gettimeoffset_pm(void)
 static int __init nopmtimer_setup(char *s)
 {
 	pmtmr_ioport = 0;
-	return 0;
+	return 1;
 }
 
 __setup("nopmtimer", nopmtimer_setup);

arch/x86_64/kernel/setup.c

@@ -540,7 +540,7 @@ void __init alternative_instructions(void)
 static int __init noreplacement_setup(char *s)
 { 
      no_replacement = 1; 
-     return 0; 
+     return 1;
 } 
 
 __setup("noreplacement", noreplacement_setup); 

arch/x86_64/kernel/setup64.c

@@ -55,7 +55,7 @@ int __init nonx_setup(char *str)
 		do_not_nx = 1;
 		__supported_pte_mask &= ~_PAGE_NX;
         }
-	return 0;
+	return 1;
 } 
 __setup("noexec=", nonx_setup);	/* parsed early actually */
 
@@ -74,7 +74,7 @@ static int __init nonx32_setup(char *str)
 		force_personality32 &= ~READ_IMPLIES_EXEC;
 	else if (!strcmp(str, "off"))
 		force_personality32 |= READ_IMPLIES_EXEC;
-	return 0;
+	return 1;
 }
 __setup("noexec32=", nonx32_setup);
 

arch/x86_64/kernel/smpboot.c

@@ -353,7 +353,7 @@ static void __cpuinit tsc_sync_wait(void)
 static __init int notscsync_setup(char *s)
 {
 	notscsync = 1;
-	return 0;
+	return 1;
 }
 __setup("notscsync", notscsync_setup);
 

arch/x86_64/kernel/time.c

@@ -1306,7 +1306,7 @@ irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 static int __init nohpet_setup(char *s) 
 { 
 	nohpet = 1;
-	return 0;
+	return 1;
 } 
 
 __setup("nohpet", nohpet_setup);
@@ -1314,7 +1314,7 @@ __setup("nohpet", nohpet_setup);
 int __init notsc_setup(char *s)
 {
 	notsc = 1;
-	return 0;
+	return 1;
 }
 
 __setup("notsc", notsc_setup);

arch/x86_64/kernel/traps.c

@@ -973,14 +973,14 @@ void __init trap_init(void)
 static int __init oops_dummy(char *s)
 { 
 	panic_on_oops = 1;
-	return -1; 
+	return 1;
 } 
 __setup("oops=", oops_dummy); 
 
 static int __init kstack_setup(char *s)
 {
 	kstack_depth_to_print = simple_strtoul(s,NULL,0);
-	return 0;
+	return 1;
 }
 __setup("kstack=", kstack_setup);
 

arch/x86_64/mm/fault.c

@@ -623,6 +623,6 @@ void vmalloc_sync_all(void)
 static int __init enable_pagefaulttrace(char *str)
 {
 	page_fault_trace = 1;
-	return 0;
+	return 1;
 }
 __setup("pagefaulttrace", enable_pagefaulttrace);