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=-8.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 27C72C28CC0 for ; Thu, 30 May 2019 11:40:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E7F8F2586C for ; Thu, 30 May 2019 11:40:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="unjcBkAg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726883AbfE3Lk4 (ORCPT ); Thu, 30 May 2019 07:40:56 -0400 Received: from mail-pl1-f195.google.com ([209.85.214.195]:42602 "EHLO mail-pl1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726065AbfE3Lkz (ORCPT ); Thu, 30 May 2019 07:40:55 -0400 Received: by mail-pl1-f195.google.com with SMTP id go2so2444580plb.9 for ; Thu, 30 May 2019 04:40:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id; bh=vt7q/LditmDyJBAB6cODqCjJUh7AilXzOQaTQy3jvoI=; b=unjcBkAgbw7XsoMLAZ3G8TtJb7hRvvDrGCUXt/xh35DPXr0Q6iK9Qwvs4QCBOzzEkB OuW1PbA+HZRHkHu/3wDGMqIFPhkGLzwMvFQVBEfYFmTcCvL+cXuiDCdv6WDFS1JPnVR4 1U+pdfaC93/wlJtQq2rXR4vAjJNd41e5CS2gHfkVlVjXUdtxpVi1HvkqvQ2VeS8Di8HS Ht5j+8hRoUWFWtXR+yqcfvTOzqIukwdSnf6vCA7PyVjciPoDdvVXKVGW/izBfm+oNI2A kfm3ueYlKfUExbZzZxjJykMTKBOK9WeZnGmZlmVUUa9ZSv09ZjQufUGzRZ5eH2nNPWlA hxRQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id; bh=vt7q/LditmDyJBAB6cODqCjJUh7AilXzOQaTQy3jvoI=; b=NHISmy+/5fa3TXMnHia9/vWI8N2Gc16kfmVEivUPLPtUMNWSKq9qIsWtElVLG1A9YV 1d7TZpfSYQ6C1lAh4vuoHKSjCj3Ev91UrkBqP6DVQlC64w2Ql264oQooznqaPrt8QV7x CYXIhJY0vVKer9jdqtMUxd4i3H6GKYneVxSXAK/czeCBcUo2pwIrZPtlxK3RqFH7W1Mo /Mqics0jhf8sIlJ4eAg2sPA61ouFbyUpECRPtlIlDh4NzOO+sydZtavtQlp+LhZwWVzl kzJ43IN6GXBsyIRkKoRe7FiHUUzG+i2nPtt4bGIaPtA1CJ3nihyaCJ6Etyh9mxJ3GmDT iqUg== X-Gm-Message-State: APjAAAV8vo8AFj5mKOQUgMJL5y+caVaqVjiNrwRFp9YhTcxS57/DKnz9 c9rPbWzHhJBth3ne7Z4NHzHSZZgL X-Google-Smtp-Source: APXvYqwBA+Uj6mDofhNVWONUsMFMYOTtuvz9+6Wg0FgaiY7D1ADu2S+AI0dY67QYuwZWpa5x/4QTOA== X-Received: by 2002:a17:902:8c82:: with SMTP id t2mr3344131plo.256.1559216455332; Thu, 30 May 2019 04:40:55 -0700 (PDT) Received: from localhost ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id x23sm3361352pfn.160.2019.05.30.04.40.54 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 30 May 2019 04:40:54 -0700 (PDT) From: Guenter Roeck To: Jann Horn Cc: Christian Brauner , linux-kernel@vger.kernel.org, Guenter Roeck Subject: [PATCH] samples: pidfd: Fix compile error seen if __NR_pidfd_send_signal is undefined Date: Thu, 30 May 2019 04:40:47 -0700 Message-Id: <1559216447-28355-1-git-send-email-linux@roeck-us.net> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org To make pidfd-metadata compile on all arches, irrespective of whether or not syscall numbers are assigned, define the syscall number to -1 if it isn't to cause the kernel to return -ENOSYS. Fixes: 43c6afee48d4 ("samples: show race-free pidfd metadata access") Cc: Christian Brauner Signed-off-by: Guenter Roeck --- samples/pidfd/pidfd-metadata.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/samples/pidfd/pidfd-metadata.c b/samples/pidfd/pidfd-metadata.c index 640f5f757c57..1e125ddde268 100644 --- a/samples/pidfd/pidfd-metadata.c +++ b/samples/pidfd/pidfd-metadata.c @@ -21,6 +21,10 @@ #define CLONE_PIDFD 0x00001000 #endif +#ifndef __NR_pidfd_send_signal +#define __NR_pidfd_send_signal -1 +#endif + static int do_child(void *args) { printf("%d\n", getpid()); -- 2.7.4