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authorAndi Kleen <ak@linux.intel.com>2008-08-18 09:06:01 +0200
committerIngo Molnar <mingo@elte.hu>2008-08-18 09:20:14 +0200
commit1b72691ce35812ff865d778f303779e774d2b098 (patch)
tree636fdf2bf0217537384914ca2842658bc8e0117d /arch/x86/boot/boot.h
parentf71066624d5d91bf179a1ea25da0800b72e20c60 (diff)
downloadlinux-1b72691ce35812ff865d778f303779e774d2b098.tar.bz2
x86: fix build warnings in real mode code
This recent patch commit c3965bd15118742d72b4bc1a290d37b3f081eb98 Author: Paul Jackson <pj@sgi.com> Date: Wed May 14 08:15:34 2008 -0700 x86 boot: proper use of ARRAY_SIZE instead of repeated E820MAX constant caused these new warnings during a normal build: In file included from linux-2.6/arch/x86/boot/memory.c:17: linux-2.6/include/linux/log2.h: In function '__ilog2_u32': linux-2.6/include/linux/log2.h:34: warning: implicit declaration of function 'fls' linux-2.6/include/linux/log2.h: In function '__ilog2_u64': linux-2.6/include/linux/log2.h:42: warning: implicit declaration of function 'fls64' linux-2.6/include/linux/log2.h: In function '__roundup_pow_of_two ': linux-2.6/include/linux/log2.h:63: warning: implicit declaration of function 'fls_long' I tried to fix them in log2.h, but it's difficult because the real mode environment is completely different from a normal kernel environment. Instead define an own ARRAY_SIZE macro in boot.h, similar to the other private macros there. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/boot/boot.h')
-rw-r--r--arch/x86/boot/boot.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
index 616b804a2295..cc0ef13fba7a 100644
--- a/arch/x86/boot/boot.h
+++ b/arch/x86/boot/boot.h
@@ -30,6 +30,8 @@
/* Useful macros */
#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))
+
extern struct setup_header hdr;
extern struct boot_params boot_params;