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platform_kernel-5.15
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arc: 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@nod.at>
This commit is contained in:
Richard Weinberger 2015-03-27 09:55:52 +01:00
parent 3e66701cbd
commit e6de3ca91c
2 changed files with 1 additions and 15 deletions
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2
arch/arc/include/asm/thread_info.h
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@ -43,7 +43,6 @@ struct thread_info {
int preempt_count; /* 0 => preemptable, <0 => BUG */ int preempt_count; /* 0 => preemptable, <0 => BUG */
struct task_struct *task; /* main task structure */ struct task_struct *task; /* main task structure */
mm_segment_t addr_limit; /* thread address space */ mm_segment_t addr_limit; /* thread address space */
struct exec_domain *exec_domain;/* execution domain */
__u32 cpu; /* current CPU */ __u32 cpu; /* current CPU */
unsigned long thr_ptr; /* TLS ptr */ unsigned long thr_ptr; /* TLS ptr */
}; };
@ -56,7 +55,6 @@ struct thread_info {
#define INIT_THREAD_INFO(tsk) \ #define INIT_THREAD_INFO(tsk) \
{ \ { \
.task = &tsk, \ .task = &tsk, \
.exec_domain = &default_exec_domain, \
.flags = 0, \ .flags = 0, \
.cpu = 0, \ .cpu = 0, \
.preempt_count = INIT_PREEMPT_COUNT, \ .preempt_count = INIT_PREEMPT_COUNT, \

14
arch/arc/kernel/signal.c
View File

@ -171,18 +171,6 @@ static inline void __user *get_sigframe(struct ksignal *ksig,
return frame; return frame;
} }
/*
* translate the signal
*/
static inline int map_sig(int sig)
{
struct thread_info *thread = current_thread_info();
if (thread->exec_domain && thread->exec_domain->signal_invmap
&& sig < 32)
sig = thread->exec_domain->signal_invmap[sig];
return sig;
}
static int static int
setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)
{ {
@ -231,7 +219,7 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)
return err; return err;
/* #1 arg to the user Signal handler */ /* #1 arg to the user Signal handler */
regs->r0 = map_sig(ksig->sig); regs->r0 = ksig->sig;
/* setup PC of user space signal handler */ /* setup PC of user space signal handler */
regs->ret = (unsigned long)ksig->ka.sa.sa_handler; regs->ret = (unsigned long)ksig->ka.sa.sa_handler;