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authorRandy Dunlap <rdunlap@infradead.org>2022-02-23 20:46:35 +0100
committerRussell King (Oracle) <rmk+kernel@armlinux.org.uk>2022-02-28 13:57:32 +0000
commit7b83299e5b9385943a857d59e15cba270df20d7e (patch)
treea475da73e365df2a8a23b37ded76ba0657c2e1b7 /arch/arm/mm/mmu.c
parent11c57c3ba94da74c3446924260e34e0b1950b5d7 (diff)
ARM: 9182/1: mmu: fix returns from early_param() and __setup() functions
early_param() handlers should return 0 on success. __setup() handlers should return 1 on success, i.e., the parameter has been handled. A return of 0 would cause the "option=value" string to be added to init's environment strings, polluting it. ../arch/arm/mm/mmu.c: In function 'test_early_cachepolicy': ../arch/arm/mm/mmu.c:215:1: error: no return statement in function returning non-void [-Werror=return-type] ../arch/arm/mm/mmu.c: In function 'test_noalign_setup': ../arch/arm/mm/mmu.c:221:1: error: no return statement in function returning non-void [-Werror=return-type] Fixes: b849a60e0903 ("ARM: make cr_alignment read-only #ifndef CONFIG_CPU_CP15") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: linux-arm-kernel@lists.infradead.org Cc: patches@armlinux.org.uk Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/mm/mmu.c')
-rw-r--r--arch/arm/mm/mmu.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 274e4f73fd33..5e2be37a198e 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -212,12 +212,14 @@ early_param("ecc", early_ecc);
static int __init early_cachepolicy(char *p)
{
pr_warn("cachepolicy kernel parameter not supported without cp15\n");
+ return 0;
}
early_param("cachepolicy", early_cachepolicy);
static int __init noalign_setup(char *__unused)
{
pr_warn("noalign kernel parameter not supported without cp15\n");
+ return 1;
}
__setup("noalign", noalign_setup);