From: Michael Ellerman <michael@ellerman.id.au>
Date: Thu, 23 Mar 2006 12:33:03 +0000 (+1100)
Subject: [PATCH] powerpc: Change firmware_has_feature() to a macro
X-Git-Tag: v2.6.17-rc1~165^2~61
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=dd4d7bfad635dddc56b74dab1894ef01c8c836e1;p=platform%2Fkernel%2Flinux-3.10.git

[PATCH] powerpc: Change firmware_has_feature() to a macro

So that we can use firmware_has_feature() in a BUG_ON() and have the compiler
elide the code entirely if the feature can never be set, change
firmware_has_feature to a macro. Unfortunate, but necessary at least until
GCC bug #26724 is fixed.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

diff --git a/include/asm-powerpc/firmware.h b/include/asm-powerpc/firmware.h
index ce37882..03c2fdf 100644
--- a/include/asm-powerpc/firmware.h
+++ b/include/asm-powerpc/firmware.h
@@ -84,11 +84,9 @@ enum {
  */
 extern unsigned long	ppc64_firmware_features;
 
-static inline unsigned long firmware_has_feature(unsigned long feature)
-{
-	return (FW_FEATURE_ALWAYS & feature) ||
-		(FW_FEATURE_POSSIBLE & ppc64_firmware_features & feature);
-}
+#define firmware_has_feature(feature)					\
+	((FW_FEATURE_ALWAYS & (feature)) ||				\
+		(FW_FEATURE_POSSIBLE & ppc64_firmware_features & (feature)))
 
 extern void system_reset_fwnmi(void);
 extern void machine_check_fwnmi(void);