diff options
Diffstat (limited to 'arch/hexagon')
| -rw-r--r-- | arch/hexagon/Kconfig | 2 | ||||
| -rw-r--r-- | arch/hexagon/kernel/signal.c | 16 | ||||
| -rw-r--r-- | arch/hexagon/kernel/traps.c | 2 |
3 files changed, 3 insertions, 17 deletions
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 0744f7d7b1fd..e4decc6b8947 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -12,9 +12,7 @@ config HEXAGON # select ARCH_WANT_OPTIONAL_GPIOLIB # select ARCH_REQUIRE_GPIOLIB # select HAVE_CLK - # select IRQ_PER_CPU # select GENERIC_PENDING_IRQ if SMP - select HAVE_IRQ_WORK select GENERIC_ATOMIC64 select HAVE_PERF_EVENTS select HAVE_GENERIC_HARDIRQS diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c index fe0d1373165d..60fa2ca3202b 100644 --- a/arch/hexagon/kernel/signal.c +++ b/arch/hexagon/kernel/signal.c @@ -125,6 +125,7 @@ static int setup_rt_frame(int signr, struct k_sigaction *ka, siginfo_t *info, err |= __put_user(0x5400c004, &frame->tramp[1]); err |= setup_sigcontext(regs, &frame->uc.uc_mcontext); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); + err |= __save_altstack(&frame->uc.uc_stack, user_stack_pointer(regs)); if (err) goto sigsegv; @@ -247,12 +248,6 @@ void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags) /* * Architecture-specific wrappers for signal-related system calls */ -asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) -{ - struct pt_regs *regs = current_pt_regs(); - - return do_sigaltstack(uss, uoss, regs->r29); -} asmlinkage int sys_rt_sigreturn(void) { @@ -288,14 +283,7 @@ asmlinkage int sys_rt_sigreturn(void) */ regs->syscall_nr = __NR_rt_sigreturn; - /* - * If we were meticulous, we'd only call this if we knew that - * we were actually going to use an alternate stack, and we'd - * consider any error to be fatal. What we do here, in common - * with many other architectures, is call it blindly and only - * consider the -EFAULT return case to be proof of a problem. - */ - if (do_sigaltstack(&frame->uc.uc_stack, NULL, pt_psp(regs)) == -EFAULT) + if (restore_altstack(&frame->uc.uc_stack)) goto badframe; return 0; diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c index a41eeb8eeaa1..be5e2dd9c9d3 100644 --- a/arch/hexagon/kernel/traps.c +++ b/arch/hexagon/kernel/traps.c @@ -225,7 +225,7 @@ int die(const char *str, struct pt_regs *regs, long err) do_show_stack(current, ®s->r30, pt_elr(regs)); bust_spinlocks(0); - add_taint(TAINT_DIE); + add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE); spin_unlock_irq(&die.lock); |