From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 05694C43219 for ; Sat, 27 Apr 2019 15:16:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D67F1206A3 for ; Sat, 27 Apr 2019 15:16:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727958AbfD0PQI (ORCPT ); Sat, 27 Apr 2019 11:16:08 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:33758 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727533AbfD0PPb (ORCPT ); Sat, 27 Apr 2019 11:15:31 -0400 Received: from [192.168.4.242] (helo=deadeye) by shadbolt.decadent.org.uk with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1hKP32-0000zL-Ca; Sat, 27 Apr 2019 16:15:28 +0100 Received: from ben by deadeye with local (Exim 4.92) (envelope-from ) id 1hKP2l-0004XF-0q; Sat, 27 Apr 2019 16:15:11 +0100 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, Denis Kirjanov , "Richard Weinberger" , "Steven Miao" Date: Sat, 27 Apr 2019 16:13:09 +0100 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) X-Patchwork-Hint: ignore Subject: [PATCH 3.16 110/202] blackfin: Use get_signal() signal_setup_done() In-Reply-To: X-SA-Exim-Connect-IP: 192.168.4.242 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.16.66-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Richard Weinberger commit 1270cff147a39f7da5b25225dca6ca3132ca6130 upstream. Use the more generic functions get_signal() signal_setup_done() for signal delivery. Signed-off-by: Richard Weinberger Acked-by: Steven Miao [bwh: Backported to 3.16 as dependency of commit 35634ffa1751 "signal: Always notice exiting tasks"] Signed-off-by: Ben Hutchings --- arch/blackfin/kernel/signal.c | 39 +++++++++++++++-------------------- 1 file changed, 17 insertions(+), 22 deletions(-) --- a/arch/blackfin/kernel/signal.c +++ b/arch/blackfin/kernel/signal.c @@ -152,23 +152,22 @@ static inline void *get_sigframe(struct } static int -setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t * info, - sigset_t * set, struct pt_regs *regs) +setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) { struct rt_sigframe *frame; int err = 0; - frame = get_sigframe(ka, regs, sizeof(*frame)); + frame = get_sigframe(&ksig->ka, regs, sizeof(*frame)); err |= __put_user((current_thread_info()->exec_domain && current_thread_info()->exec_domain->signal_invmap - && sig < 32 + && ksig->sig < 32 ? current_thread_info()->exec_domain-> - signal_invmap[sig] : sig), &frame->sig); + signal_invmap[ksig->sig] : ksig->sig), &frame->sig); err |= __put_user(&frame->info, &frame->pinfo); err |= __put_user(&frame->uc, &frame->puc); - err |= copy_siginfo_to_user(&frame->info, info); + err |= copy_siginfo_to_user(&frame->info, &ksig->info); /* Create the ucontext. */ err |= __put_user(0, &frame->uc.uc_flags); @@ -183,7 +182,7 @@ setup_rt_frame(int sig, struct k_sigacti /* Set up registers for signal handler */ if (current->personality & FDPIC_FUNCPTRS) { struct fdpic_func_descriptor __user *funcptr = - (struct fdpic_func_descriptor *) ka->sa.sa_handler; + (struct fdpic_func_descriptor *) ksig->ka.sa.sa_handler; u32 pc, p3; err |= __get_user(pc, &funcptr->text); err |= __get_user(p3, &funcptr->GOT); @@ -192,7 +191,7 @@ setup_rt_frame(int sig, struct k_sigacti regs->pc = pc; regs->p3 = p3; } else - regs->pc = (unsigned long)ka->sa.sa_handler; + regs->pc = (unsigned long)ksig->ka.sa.sa_handler; wrusp((unsigned long)frame); regs->rets = SIGRETURN_STUB; @@ -237,20 +236,19 @@ handle_restart(struct pt_regs *regs, str * OK, we're invoking a handler */ static void -handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka, - struct pt_regs *regs) +handle_signal(struct ksignal *ksig, struct pt_regs *regs) { + int ret; + /* are we from a system call? to see pt_regs->orig_p0 */ if (regs->orig_p0 >= 0) /* If so, check system call restarting.. */ - handle_restart(regs, ka, 1); + handle_restart(regs, &ksig->ka, 1); /* set up the stack frame */ - if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs) < 0) - force_sigsegv(sig, current); - else - signal_delivered(sig, info, ka, regs, - test_thread_flag(TIF_SINGLESTEP)); + ret = setup_rt_frame(ksig, sigmask_to_save(), regs); + + signal_setup_done(ret, ksig, test_thread_flag(TIF_SINGLESTEP)); } /* @@ -264,16 +262,13 @@ handle_signal(int sig, siginfo_t *info, */ asmlinkage void do_signal(struct pt_regs *regs) { - siginfo_t info; - int signr; - struct k_sigaction ka; + struct ksignal ksig; current->thread.esp0 = (unsigned long)regs; - signr = get_signal_to_deliver(&info, &ka, regs, NULL); - if (signr > 0) { + if (get_signal(&ksig)) { /* Whee! Actually deliver the signal. */ - handle_signal(signr, &info, &ka, regs); + handle_signal(&ksig, regs); return; }