From: Will Deacon <will.deacon@arm.com>
Date: Tue, 22 Jan 2013 19:11:38 +0000 (+0000)
Subject: ARM: mm: remove broken condition check for v4 flushing
X-Git-Tag: firefly_0821_release~3680^2~705^2~6^2~1
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=794fe85da484353dedcb5dc6da14d923d0645fc3;p=firefly-linux-kernel-4.4.55.git

ARM: mm: remove broken condition check for v4 flushing

There's no point having a conditional cache flush if we don't know the
state of the condition beforehand.

This patch makes the cacheflush in v4_flush_user_cache_range
unconditional.

signed-off-by: will deacon <will.deacon@arm.com>
---

diff --git a/arch/arm/mm/cache-v4.S b/arch/arm/mm/cache-v4.S
index 43e5d77be677..a7ba68f59f0c 100644
--- a/arch/arm/mm/cache-v4.S
+++ b/arch/arm/mm/cache-v4.S
@@ -58,7 +58,7 @@ ENTRY(v4_flush_kern_cache_all)
 ENTRY(v4_flush_user_cache_range)
 #ifdef CONFIG_CPU_CP15
 	mov	ip, #0
-	mcreq	p15, 0, ip, c7, c7, 0		@ flush ID cache
+	mcr	p15, 0, ip, c7, c7, 0		@ flush ID cache
 	mov	pc, lr
 #else
 	/* FALLTHROUGH */