From: Anton Blanchard <anton@samba.org>
Date: Fri, 6 Aug 2010 03:28:19 +0000 (+0000)
Subject: powerpc: Inline ppc64_runlatch_off
X-Git-Tag: firefly_0821_release~9833^2~664^2~7
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4138d65333fa8961714441ed40229ea8cbeaf7e5;p=firefly-linux-kernel-4.4.55.git

powerpc: Inline ppc64_runlatch_off

I'm sick of seeing ppc64_runlatch_off in our profiles, so inline it
into the callers. To avoid a mess of circular includes I didn't add
it as an inline function.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index d8be016d2ede..ff0005eec7dd 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -951,7 +951,14 @@
 #ifdef CONFIG_PPC64
 
 extern void ppc64_runlatch_on(void);
-extern void ppc64_runlatch_off(void);
+extern void __ppc64_runlatch_off(void);
+
+#define ppc64_runlatch_off()					\
+	do {							\
+		if (cpu_has_feature(CPU_FTR_CTRL) &&		\
+		    test_thread_flag(TIF_RUNLATCH))		\
+			__ppc64_runlatch_off();			\
+	} while (0)
 
 extern unsigned long scom970_read(unsigned int address);
 extern void scom970_write(unsigned int address, unsigned long value);
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 986fedf7e278..b1c648a36b03 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1199,19 +1199,17 @@ void ppc64_runlatch_on(void)
 	}
 }
 
-void ppc64_runlatch_off(void)
+void __ppc64_runlatch_off(void)
 {
 	unsigned long ctrl;
 
-	if (cpu_has_feature(CPU_FTR_CTRL) && test_thread_flag(TIF_RUNLATCH)) {
-		HMT_medium();
+	HMT_medium();
 
-		clear_thread_flag(TIF_RUNLATCH);
+	clear_thread_flag(TIF_RUNLATCH);
 
-		ctrl = mfspr(SPRN_CTRLF);
-		ctrl &= ~CTRL_RUNLATCH;
-		mtspr(SPRN_CTRLT, ctrl);
-	}
+	ctrl = mfspr(SPRN_CTRLF);
+	ctrl &= ~CTRL_RUNLATCH;
+	mtspr(SPRN_CTRLT, ctrl);
 }
 #endif