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[3/7] ARM: nommu: provide dummy cpu_switch_mm implementation

Message ID 1368532137-8871-4-git-send-email-jonathan.austin@arm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jonathan Austin May 14, 2013, 11:48 a.m. UTC 
From: Will Deacon <will.deacon@arm.com>

cpu_switch_mm is a logical nop on nommu systems, so define it as such
when !CONFIG_MMU.

Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm/include/asm/proc-fns.h |    4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h
index f3628fb..a6c99fe 100644
--- a/arch/arm/include/asm/proc-fns.h
+++ b/arch/arm/include/asm/proc-fns.h
@@ -137,6 +137,10 @@  extern void cpu_resume(void);
 	})
 #endif
 
+#else	/*!CONFIG_MMU */
+
+#define cpu_switch_mm(pgd,mm)	{ }
+
 #endif
 
 #endif /* __ASSEMBLY__ */