Merge branch 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc

Pull exec domain removal from Richard Weinberger:
 "This series removes execution domain support from Linux.

  The idea behind exec domains was to support different ABIs.  The
  feature was never complete nor stable.  Let's rip it out and make the
  kernel signal handling code less complicated"

* 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (27 commits)
  arm64: Removed unused variable
  sparc: Fix execution domain removal
  Remove rest of exec domains.
  arch: Remove exec_domain from remaining archs
  arc: Remove signal translation and exec_domain
  xtensa: Remove signal translation and exec_domain
  xtensa: Autogenerate offsets in struct thread_info
  x86: Remove signal translation and exec_domain
  unicore32: Remove signal translation and exec_domain
  um: Remove signal translation and exec_domain
  tile: Remove signal translation and exec_domain
  sparc: Remove signal translation and exec_domain
  sh: Remove signal translation and exec_domain
  s390: Remove signal translation and exec_domain
  mn10300: Remove signal translation and exec_domain
  microblaze: Remove signal translation and exec_domain
  m68k: Remove signal translation and exec_domain
  m32r: Remove signal translation and exec_domain
  m32r: Autogenerate offsets in struct thread_info
  frv: Remove signal translation and exec_domain
  ...

3 files changed, 10 insertions, 22 deletions

diff --git a/arch/xtensa/include/asm/thread_info.h b/arch/xtensa/include/asm/thread_info.h
index a9b5d3b..9ad12c6 100644
--- a/arch/xtensa/include/asm/thread_info.h
+++ b/arch/xtensa/include/asm/thread_info.h
@@ -44,7 +44,6 @@ typedef struct xtregs_coprocessor {
 
 struct thread_info {
 	struct task_struct	*task;		/* main task structure */
-	struct exec_domain	*exec_domain;	/* execution domain */
 	unsigned long		flags;		/* low level flags */
 	unsigned long		status;		/* thread-synchronous flags */
 	__u32			cpu;		/* current CPU */
@@ -61,17 +60,6 @@ struct thread_info {
 	xtregs_user_t		xtregs_user;
 };
 
-#else /* !__ASSEMBLY__ */
-
-/* offsets into the thread_info struct for assembly code access */
-#define TI_TASK		 0x00000000
-#define TI_EXEC_DOMAIN	 0x00000004
-#define TI_FLAGS	 0x00000008
-#define TI_STATUS	 0x0000000C
-#define TI_CPU		 0x00000010
-#define TI_PRE_COUNT	 0x00000014
-#define TI_ADDR_LIMIT	 0x00000018
-
 #endif
 
 /*
@@ -83,7 +71,6 @@ struct thread_info {
 #define INIT_THREAD_INFO(tsk)			\
 {						\
 	.task		= &tsk,			\
-	.exec_domain	= &default_exec_domain,	\
 	.flags		= 0,			\
 	.cpu		= 0,			\
 	.preempt_count	= INIT_PREEMPT_COUNT,	\
diff --git a/arch/xtensa/kernel/asm-offsets.c b/arch/xtensa/kernel/asm-offsets.c
index 1915c7c..b123ace 100644
--- a/arch/xtensa/kernel/asm-offsets.c
+++ b/arch/xtensa/kernel/asm-offsets.c
@@ -77,6 +77,14 @@ int main(void)
 	DEFINE(TASK_THREAD_INFO, offsetof (struct task_struct, stack));
 	DEFINE(TASK_STRUCT_SIZE, sizeof (struct task_struct));
 
+	/* offsets in thread_info struct */
+	OFFSET(TI_TASK, thread_info, task);
+	OFFSET(TI_FLAGS, thread_info, flags);
+	OFFSET(TI_STSTUS, thread_info, status);
+	OFFSET(TI_CPU, thread_info, cpu);
+	OFFSET(TI_PRE_COUNT, thread_info, preempt_count);
+	OFFSET(TI_ADDR_LIMIT, thread_info, addr_limit);
+
 	/* struct thread_info (offset from start_struct) */
 	DEFINE(THREAD_RA, offsetof (struct task_struct, thread.ra));
 	DEFINE(THREAD_SP, offsetof (struct task_struct, thread.sp));
diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index 6b37904..e87adaa 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -336,7 +336,6 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
 {
 	struct rt_sigframe *frame;
 	int err = 0, sig = ksig->sig;
-	int signal;
 	unsigned long sp, ra, tp;
 
 	sp = regs->areg[1];
@@ -354,12 +353,6 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
 		return -EFAULT;
 	}
 
-	signal = current_thread_info()->exec_domain
-		&& current_thread_info()->exec_domain->signal_invmap
-		&& sig < 32
-		? current_thread_info()->exec_domain->signal_invmap[sig]
-		: sig;
-
 	if (ksig->ka.sa.sa_flags & SA_SIGINFO) {
 		err |= copy_siginfo_to_user(&frame->info, &ksig->info);
 	}
@@ -400,14 +393,14 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
 	 * Note: PS.CALLINC is set to one by start_thread
 	 */
 	regs->areg[4] = (((unsigned long) ra) & 0x3fffffff) | 0x40000000;
-	regs->areg[6] = (unsigned long) signal;
+	regs->areg[6] = (unsigned long) sig;
 	regs->areg[7] = (unsigned long) &frame->info;
 	regs->areg[8] = (unsigned long) &frame->uc;
 	regs->threadptr = tp;
 
 #if DEBUG_SIG
 	printk("SIG rt deliver (%s:%d): signal=%d sp=%p pc=%08x\n",
-		current->comm, current->pid, signal, frame, regs->pc);
+		current->comm, current->pid, sig, frame, regs->pc);
 #endif
 
 	return 0;