[PATCH] h8300/kernel/setup.c: add "linux/initrd.h" to pass compiling

[Chen Gang]

Need add "linux/initrd.h" to pass compiling.

The related error (allmodconfig for h8300):

  arch/h8300/kernel/setup.c: In function 'setup_arch':
  arch/h8300/kernel/setup.c:103:3: error: 'initrd_start' undeclared (first use in this function)
     initrd_start = memory_start;
     ^
  arch/h8300/kernel/setup.c:103:3: note: each undeclared identifier is reported only once for each function it appears in
  arch/h8300/kernel/setup.c:104:3: error: 'initrd_end' undeclared (first use in this function)
     initrd_end = memory_start += be32_to_cpu(((unsigned long *) (memory_start))[2]);
     ^

Signed-off-by: Chen Gang <gang.chen@xxxxxxxxxxx>
---
 arch/h8300/kernel/setup.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
index d0b1607..684e734 100644
--- a/arch/h8300/kernel/setup.c
+++ b/arch/h8300/kernel/setup.c
@@ -47,6 +47,9 @@
 #include <asm/regs267x.h>
 #endif
 
+#if defined(CONFIG_BLK_DEV_INITRD)
+#include <linux/initrd.h>
+#endif
 #define STUBSIZE 0xc000
 
 unsigned long rom_length;
-- 
1.7.7.6
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