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=unavailable 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 64EDBC282E3 for ; Thu, 25 Apr 2019 10:01:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3FE70206BA for ; Thu, 25 Apr 2019 10:01:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729372AbfDYKBe (ORCPT ); Thu, 25 Apr 2019 06:01:34 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:58137 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728758AbfDYKBd (ORCPT ); Thu, 25 Apr 2019 06:01:33 -0400 Received: from localhost ([127.0.0.1] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1hJb9o-0001qh-0J; Thu, 25 Apr 2019 11:59:08 +0200 Message-Id: <20190425094801.501919093@linutronix.de> User-Agent: quilt/0.65 Date: Thu, 25 Apr 2019 11:44:57 +0200 From: Thomas Gleixner To: LKML Cc: Josh Poimboeuf , x86@kernel.org, Andy Lutomirski , Steven Rostedt , Alexander Potapenko , Alexey Dobriyan , Andrew Morton , Christoph Lameter , Pekka Enberg , linux-mm@kvack.org, David Rientjes , Catalin Marinas , Dmitry Vyukov , Andrey Ryabinin , kasan-dev@googlegroups.com, Mike Rapoport , Akinobu Mita , Christoph Hellwig , iommu@lists.linux-foundation.org, Robin Murphy , Marek Szyprowski , Johannes Thumshirn , David Sterba , Chris Mason , Josef Bacik , linux-btrfs@vger.kernel.org, dm-devel@redhat.com, Mike Snitzer , Alasdair Kergon , Daniel Vetter , intel-gfx@lists.freedesktop.org, Joonas Lahtinen , Maarten Lankhorst , dri-devel@lists.freedesktop.org, David Airlie , Jani Nikula , Rodrigo Vivi , Tom Zanussi , Miroslav Benes , linux-arch@vger.kernel.org Subject: [patch V3 04/29] backtrace-test: Simplify stack trace handling References: <20190425094453.875139013@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Replace the indirection through struct stack_trace by using the storage array based interfaces. Signed-off-by: Thomas Gleixner --- kernel/backtracetest.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) --- a/kernel/backtracetest.c +++ b/kernel/backtracetest.c @@ -48,19 +48,14 @@ static void backtrace_test_irq(void) #ifdef CONFIG_STACKTRACE static void backtrace_test_saved(void) { - struct stack_trace trace; unsigned long entries[8]; + unsigned int nr_entries; pr_info("Testing a saved backtrace.\n"); pr_info("The following trace is a kernel self test and not a bug!\n"); - trace.nr_entries = 0; - trace.max_entries = ARRAY_SIZE(entries); - trace.entries = entries; - trace.skip = 0; - - save_stack_trace(&trace); - print_stack_trace(&trace, 0); + nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 0); + stack_trace_print(entries, nr_entries, 0); } #else static void backtrace_test_saved(void) From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Gleixner Subject: [patch V3 04/29] backtrace-test: Simplify stack trace handling Date: Thu, 25 Apr 2019 11:44:57 +0200 Message-ID: <20190425094801.501919093@linutronix.de> References: <20190425094453.875139013@linutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: LKML Cc: Mike Snitzer , David Airlie , Catalin Marinas , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, dm-devel@redhat.com, Alexander Potapenko , Christoph Lameter , Miroslav Benes , Christoph Hellwig , Alasdair Kergon , Marek Szyprowski , linux-arch@vger.kernel.org, x86@kernel.org, kasan-dev@googlegroups.com, Johannes Thumshirn , Andrey Ryabinin , Alexey Dobriyan , intel-gfx@lists.freedesktop.org, David Rientjes , Akinobu Mita , Steven Rostedt , Josef Bacik , Mike Rapoport , Andy Lutomirski , Josh Poimboeuf List-Id: linux-arch.vger.kernel.org UmVwbGFjZSB0aGUgaW5kaXJlY3Rpb24gdGhyb3VnaCBzdHJ1Y3Qgc3RhY2tfdHJhY2UgYnkgdXNp bmcgdGhlIHN0b3JhZ2UKYXJyYXkgYmFzZWQgaW50ZXJmYWNlcy4KClNpZ25lZC1vZmYtYnk6IFRo b21hcyBHbGVpeG5lciA8dGdseEBsaW51dHJvbml4LmRlPgotLS0KIGtlcm5lbC9iYWNrdHJhY2V0 ZXN0LmMgfCAgIDExICsrKy0tLS0tLS0tCiAxIGZpbGUgY2hhbmdlZCwgMyBpbnNlcnRpb25zKCsp LCA4IGRlbGV0aW9ucygtKQoKLS0tIGEva2VybmVsL2JhY2t0cmFjZXRlc3QuYworKysgYi9rZXJu ZWwvYmFja3RyYWNldGVzdC5jCkBAIC00OCwxOSArNDgsMTQgQEAgc3RhdGljIHZvaWQgYmFja3Ry YWNlX3Rlc3RfaXJxKHZvaWQpCiAjaWZkZWYgQ09ORklHX1NUQUNLVFJBQ0UKIHN0YXRpYyB2b2lk IGJhY2t0cmFjZV90ZXN0X3NhdmVkKHZvaWQpCiB7Ci0Jc3RydWN0IHN0YWNrX3RyYWNlIHRyYWNl OwogCXVuc2lnbmVkIGxvbmcgZW50cmllc1s4XTsKKwl1bnNpZ25lZCBpbnQgbnJfZW50cmllczsK IAogCXByX2luZm8oIlRlc3RpbmcgYSBzYXZlZCBiYWNrdHJhY2UuXG4iKTsKIAlwcl9pbmZvKCJU aGUgZm9sbG93aW5nIHRyYWNlIGlzIGEga2VybmVsIHNlbGYgdGVzdCBhbmQgbm90IGEgYnVnIVxu Iik7CiAKLQl0cmFjZS5ucl9lbnRyaWVzID0gMDsKLQl0cmFjZS5tYXhfZW50cmllcyA9IEFSUkFZ X1NJWkUoZW50cmllcyk7Ci0JdHJhY2UuZW50cmllcyA9IGVudHJpZXM7Ci0JdHJhY2Uuc2tpcCA9 IDA7Ci0KLQlzYXZlX3N0YWNrX3RyYWNlKCZ0cmFjZSk7Ci0JcHJpbnRfc3RhY2tfdHJhY2UoJnRy YWNlLCAwKTsKKwlucl9lbnRyaWVzID0gc3RhY2tfdHJhY2Vfc2F2ZShlbnRyaWVzLCBBUlJBWV9T SVpFKGVudHJpZXMpLCAwKTsKKwlzdGFja190cmFjZV9wcmludChlbnRyaWVzLCBucl9lbnRyaWVz LCAwKTsKIH0KICNlbHNlCiBzdGF0aWMgdm9pZCBiYWNrdHJhY2VfdGVzdF9zYXZlZCh2b2lkKQoK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdm eCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xp c3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeA== 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 1185DC10F03 for ; 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Thu, 25 Apr 2019 10:34:12 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1hJb9o-0001qh-0J; Thu, 25 Apr 2019 11:59:08 +0200 Message-Id: <20190425094801.501919093@linutronix.de> User-Agent: quilt/0.65 Date: Thu, 25 Apr 2019 11:44:57 +0200 From: Thomas Gleixner To: LKML Subject: [patch V3 04/29] backtrace-test: Simplify stack trace handling References: <20190425094453.875139013@linutronix.de> MIME-Version: 1.0 Cc: Mike Snitzer , David Airlie , Catalin Marinas , Joonas Lahtinen , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, dm-devel@redhat.com, Alexander Potapenko , Christoph Lameter , Miroslav Benes , Christoph Hellwig , Alasdair Kergon , linux-arch@vger.kernel.org, x86@kernel.org, kasan-dev@googlegroups.com, Johannes Thumshirn , Andrey Ryabinin , Alexey Dobriyan , intel-gfx@lists.freedesktop.org, David Rientjes , Maarten Lankhorst , Akinobu Mita , Steven Rostedt , Josef Bacik , Rodrigo Vivi , Mike Rapoport , Jani Nikula , Andy Lutomirski , Josh Poimboeuf , David Sterba , Dmitry Vyukov , Tom Zanussi , Chris Mason , Pekka Enberg , iommu@lists.linux-foundation.org, Daniel Vetter , Andrew Morton , Robin Murphy , linux-btrfs@vger.kernel.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org Message-ID: <20190425094457.mYB21IlbOBgHVb1NyGK-0JScRCM4UC1_d9EkyZFu8YQ@z> Replace the indirection through struct stack_trace by using the storage array based interfaces. Signed-off-by: Thomas Gleixner --- kernel/backtracetest.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) --- a/kernel/backtracetest.c +++ b/kernel/backtracetest.c @@ -48,19 +48,14 @@ static void backtrace_test_irq(void) #ifdef CONFIG_STACKTRACE static void backtrace_test_saved(void) { - struct stack_trace trace; unsigned long entries[8]; + unsigned int nr_entries; pr_info("Testing a saved backtrace.\n"); pr_info("The following trace is a kernel self test and not a bug!\n"); - trace.nr_entries = 0; - trace.max_entries = ARRAY_SIZE(entries); - trace.entries = entries; - trace.skip = 0; - - save_stack_trace(&trace); - print_stack_trace(&trace, 0); + nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 0); + stack_trace_print(entries, nr_entries, 0); } #else static void backtrace_test_saved(void) _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu