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Subject[PATCH] sh: fix kernel build error

arch/sh/kernel/kgdb.c: In function 'sleeping_thread_to_gdb_regs':
>> arch/sh/kernel/kgdb.c:225:32: error: implicit declaration of function 'task_stack_page' [-Werror=implicit-function-declaration]
>> arch/sh/kernel/kgdb.c:242:23: error: dereferencing pointer to incomplete type
>> arch/sh/kernel/kgdb.c:243:22: error: dereferencing pointer to incomplete type
arch/sh/kernel/kgdb.c: In function 'singlestep_trap_handler':
>> arch/sh/kernel/kgdb.c:310:27: error: 'SIGTRAP' undeclared (first use in this function)
arch/sh/kernel/kgdb.c:310:27: note: each undeclared identifier is reported only once for each function it appears in
cc1: all warnings being treated as errors

This is introduced by commit 16559ae.

Reported-by: Fengguang Wu <>
Signed-off-by: Wanlong Gao <>
arch/sh/kernel/kgdb.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c
index 38b3139..adad46e 100644
--- a/arch/sh/kernel/kgdb.c
+++ b/arch/sh/kernel/kgdb.c
@@ -13,6 +13,7 @@
#include <linux/kdebug.h>
#include <linux/irq.h>
#include <linux/io.h>
+#include <linux/sched.h>
#include <asm/cacheflush.h>
#include <asm/traps.h>


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