linux-kernel - [3.13-rc regression] Unbreak Loongson2 and r4k-generic flush icache range

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Date:	Mon, 13 Jan 2014 09:26:10 -0200
From:	Alexandre Oliva <oliva@....org>
To:	Ralf Baechle <ralf@...ux-mips.org>
Cc:	linux-mips@...ux-mips.org, linux-kernel@...r.kernel.org
Subject: [3.13-rc regression] Unbreak Loongson2 and r4k-generic flush icache range

Commit 14bd8c08, that replaced Loongson2-specific ifdefs with cpu tests,
inverted the CPU test in local_r4k_flush_icache_range.  Loongson2 won't
boot up using the generic icache flush code.  Presumably other CPUs
might face other problems when presented with Loongson2-specific icache
flush code too.  This patch enabled my Yeeloong to boot up successfully
a 3.13-rc kernel for the first time, after a long git bisect session.

Signed-off-by: Alexandre Oliva <lxoliva@...la.org>
---
 arch/mips/mm/c-r4k.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 62ffd20..1c2029d 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -580,11 +580,11 @@ static inline void local_r4k_flush_icache_range(unsigned long start, unsigned lo
 	else {
 		switch (boot_cpu_type()) {
 		case CPU_LOONGSON2:
-			protected_blast_icache_range(start, end);
+			protected_loongson23_blast_icache_range(start, end);
 			break;
 
 		default:
-			protected_loongson23_blast_icache_range(start, end);
+			protected_blast_icache_range(start, end);
 			break;
 		}
 	}
-- 
1.8.3.1

-- 
Alexandre Oliva, freedom fighter    http://FSFLA.org/~lxoliva/
You must be the change you wish to see in the world. -- Gandhi
Be Free! -- http://FSFLA.org/   FSF Latin America board member
Free Software Evangelist      Red Hat Brazil Compiler Engineer
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