From owner-svn-src-stable@freebsd.org Wed Jun 20 06:58:00 2018 Return-Path: Delivered-To: svn-src-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9F4EC1005E25; Wed, 20 Jun 2018 06:58:00 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 508D06CE96; Wed, 20 Jun 2018 06:58:00 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 321211EE67; Wed, 20 Jun 2018 06:58:00 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w5K6vx3A032056; Wed, 20 Jun 2018 06:57:59 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w5K6vxe2032055; Wed, 20 Jun 2018 06:57:59 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201806200657.w5K6vxe2032055@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Wed, 20 Jun 2018 06:57:59 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r335433 - stable/11/sys/compat/linuxkpi/common/include/linux X-SVN-Group: stable-11 X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: stable/11/sys/compat/linuxkpi/common/include/linux X-SVN-Commit-Revision: 335433 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Jun 2018 06:58:00 -0000 Author: hselasky Date: Wed Jun 20 06:57:59 2018 New Revision: 335433 URL: https://svnweb.freebsd.org/changeset/base/335433 Log: MFC r334958: Implement the kstrtobool() and kstrtobool_from_user() functions in the LinuxKPI. Submitted by: Johannes Lundberg Sponsored by: Mellanox Technologies Sponsored by: Limelight Networks Modified: stable/11/sys/compat/linuxkpi/common/include/linux/kernel.h Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/compat/linuxkpi/common/include/linux/kernel.h ============================================================================== --- stable/11/sys/compat/linuxkpi/common/include/linux/kernel.h Wed Jun 20 06:57:14 2018 (r335432) +++ stable/11/sys/compat/linuxkpi/common/include/linux/kernel.h Wed Jun 20 06:57:59 2018 (r335433) @@ -50,7 +50,9 @@ #include #include #include + #include +#include #include @@ -370,6 +372,46 @@ kstrtou32(const char *cp, unsigned int base, u32 *res) if (temp != (u32)temp) return (-ERANGE); return (0); +} + +static inline int +kstrtobool(const char *s, bool *res) +{ + int len; + + if (s == NULL || (len = strlen(s)) == 0 || res == NULL) + return (-EINVAL); + + /* skip newline character, if any */ + if (s[len - 1] == '\n') + len--; + + if (len == 1 && strchr("yY1", s[0]) != NULL) + *res = true; + else if (len == 1 && strchr("nN0", s[0]) != NULL) + *res = false; + else if (strncasecmp("on", s, len) == 0) + *res = true; + else if (strncasecmp("off", s, len) == 0) + *res = false; + else + return (-EINVAL); + + return (0); +} + +static inline int +kstrtobool_from_user(const char __user *s, size_t count, bool *res) +{ + char buf[8] = {}; + + if (count > (sizeof(buf) - 1)) + count = (sizeof(buf) - 1); + + if (copy_from_user(buf, s, count)) + return (-EFAULT); + + return (kstrtobool(buf, res)); } #define min(x, y) ((x) < (y) ? (x) : (y))