From: Richard Weinberger <richard@nod.at>
Date: Fri, 3 Apr 2015 16:56:16 +0000 (+0200)
Subject: blackfin: Autogenerate offsets in struct thread_info
X-Git-Tag: firefly_0821_release~176^2~1966^2~21
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ede45dd302385007b7ee83148753654ab8453167;p=firefly-linux-kernel-4.4.55.git

blackfin: Autogenerate offsets in struct thread_info

Maintaining offsets by hand is no fun.

Signed-off-by: Richard Weinberger <richard@nod.at>
---

diff --git a/arch/blackfin/include/asm/thread_info.h b/arch/blackfin/include/asm/thread_info.h
index 57c3a8bd583d..962be3fb3ee1 100644
--- a/arch/blackfin/include/asm/thread_info.h
+++ b/arch/blackfin/include/asm/thread_info.h
@@ -75,15 +75,6 @@ static inline struct thread_info *current_thread_info(void)
 
 #endif				/* __ASSEMBLY__ */
 
-/*
- * Offsets in thread_info structure, used in assembly code
- */
-#define TI_TASK		0
-#define TI_EXECDOMAIN	4
-#define TI_FLAGS	8
-#define TI_CPU		12
-#define TI_PREEMPT	16
-
 /*
  * thread information flag bit numbers
  */
diff --git a/arch/blackfin/kernel/asm-offsets.c b/arch/blackfin/kernel/asm-offsets.c
index 37fcae950216..486560aea050 100644
--- a/arch/blackfin/kernel/asm-offsets.c
+++ b/arch/blackfin/kernel/asm-offsets.c
@@ -42,6 +42,12 @@ int main(void)
 	DEFINE(THREAD_PC, offsetof(struct thread_struct, pc));
 	DEFINE(KERNEL_STACK_SIZE, THREAD_SIZE);
 
+	/* offsets in thread_info struct */
+	OFFSET(TI_TASK, thread_info, task);
+	OFFSET(TI_FLAGS, thread_info, flags);
+	OFFSET(TI_CPU, thread_info, cpu);
+	OFFSET(TI_PREEMPT, thread_info, preempt_count);
+
 	/* offsets into the pt_regs */
 	DEFINE(PT_ORIG_R0, offsetof(struct pt_regs, orig_r0));
 	DEFINE(PT_ORIG_P0, offsetof(struct pt_regs, orig_p0));
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index de5c2c3ebd9b..1ed85ddadc0d 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -18,6 +18,7 @@
 #include <asm/fixed_code.h>
 #include <asm/pseudo_instructions.h>
 #include <asm/pda.h>
+#include <asm/asm-offsets.h>
 
 #ifdef CONFIG_KGDB
 # include <linux/kgdb.h>