linux-kernel - [PATCH 05/24] arm64: Remove signal translation and exec

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Date:	Sat, 11 Apr 2015 22:47:44 +0200
From:	Richard Weinberger <richard@....at>
To:	linux-arch@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, rth@...ddle.net,
	ink@...assic.park.msu.ru, mattst88@...il.com, vgupta@...opsys.com,
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	hch@...radead.org, viro@...iv.linux.org.uk,
	torvalds@...ux-foundation.org, Richard Weinberger <richard@....at>
Subject: [PATCH 05/24] arm64: Remove signal translation and exec_domain

As execution domain support is gone we can remove
signal translation from the signal code and remove
exec_domain from thread_info.

Signed-off-by: Richard Weinberger <richard@....at>
---
 arch/arm64/include/asm/thread_info.h | 3 ---
 arch/arm64/kernel/asm-offsets.c      | 1 -
 arch/arm64/kernel/signal.c           | 6 ------
 3 files changed, 10 deletions(-)

diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h
index 702e1e6..dcd06d1 100644
--- a/arch/arm64/include/asm/thread_info.h
+++ b/arch/arm64/include/asm/thread_info.h
@@ -33,7 +33,6 @@
 #ifndef __ASSEMBLY__
 
 struct task_struct;
-struct exec_domain;
 
 #include <asm/types.h>
 
@@ -47,7 +46,6 @@ struct thread_info {
 	unsigned long		flags;		/* low level flags */
 	mm_segment_t		addr_limit;	/* address limit */
 	struct task_struct	*task;		/* main task structure */
-	struct exec_domain	*exec_domain;	/* execution domain */
 	int			preempt_count;	/* 0 => preemptable, <0 => bug */
 	int			cpu;		/* cpu */
 };
@@ -55,7 +53,6 @@ struct thread_info {
 #define INIT_THREAD_INFO(tsk)						\
 {									\
 	.task		= &tsk,						\
-	.exec_domain	= &default_exec_domain,				\
 	.flags		= 0,						\
 	.preempt_count	= INIT_PREEMPT_COUNT,				\
 	.addr_limit	= KERNEL_DS,					\
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c
index f7fa65d..56cadd3 100644
--- a/arch/arm64/kernel/asm-offsets.c
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -38,7 +38,6 @@ int main(void)
   DEFINE(TI_PREEMPT,		offsetof(struct thread_info, preempt_count));
   DEFINE(TI_ADDR_LIMIT,		offsetof(struct thread_info, addr_limit));
   DEFINE(TI_TASK,		offsetof(struct thread_info, task));
-  DEFINE(TI_EXEC_DOMAIN,	offsetof(struct thread_info, exec_domain));
   DEFINE(TI_CPU,		offsetof(struct thread_info, cpu));
   BLANK();
   DEFINE(THREAD_CPU_CONTEXT,	offsetof(struct task_struct, thread.cpu_context));
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
index 660ccf9..9f28eaa 100644
--- a/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@ -294,12 +294,6 @@ static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)
 	int ret;
 
 	/*
-	 * translate the signal
-	 */
-	if (usig < 32 && thread->exec_domain && thread->exec_domain->signal_invmap)
-		usig = thread->exec_domain->signal_invmap[usig];
-
-	/*
 	 * Set up the stack frame
 	 */
 	if (is_compat_task()) {
-- 
1.8.4.5

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