From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELuVVfTmo2C9BcXnJ3fyqCCG8C6DuPvfaUZjVm6kadOOZLRpUYjVJbaprSgNS2eX4YtgunJV ARC-Seal: i=1; a=rsa-sha256; t=1521214285; cv=none; d=google.com; s=arc-20160816; b=ArNxpy865wxWYnxar2pJx/BthzCi0sOynLjeC9HzyiooCfpAIcVo+2CGQTloqFVgBw 41ICXBM0OrTc6gp0yOZqVFuwD7jrDALHp9v/5c4xFQQ4Rjg4yY7w6/eE2Jdap20mFxC4 2mAE9cHqV9bYNhIcnN3v5wJGSL3Frj9DqsHxE6WZ7NvttNCHftChtk//Fzea25oWYU9M Oz286WW+FMWAOx0ykCPhv7brH8bxyOnzFfl2t9MNWFo4HuYIs91ZYCAzsVdLlguDMRiE WEwt+efVAZ8ooJWrIlzGYi8yZNHSIKb921urikAnuHocn3C+FO7/4zmyivkD/ZZouCSS cE2Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=Gytr+Xd5NT33+Ni6t3/IRQ6h6n60GaacKJiswXljZqU=; b=FY/0osFyYkC4YbTDEJ6rIDYvWNNDtlt2K45hKNQtd0WJnIAEPwh0nsewGn8Uu/IOVL aMq1CYet/DZDioq6oPQjMaWVKaFHth1iRsX22m5OXZ3oCkW8db+JxDBXXKSR9zCgdQWi UDQ6UrhQitpHndQjiXiaLIe2wqTEUSxQFmQczINuL/Z+UWy6EYdRXQTerCSa16xllHdS /eQ0KJDN6B0GyRDeiJ/s+oDqkS5PoPJWjcF121dyXP9aLFzcDGYtnA+JMMqbLCWB2Qll dhOJcE95YPXOF92j5itYfWvWaPnDTJwOIWNqz7/gIXPf7r137RxS7kfNcqU5/m1gjL5Y 39Qg== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christian Borntraeger , Dan Williams , Andy Lutomirski , Arjan van de Ven , Borislav Petkov , Dave Hansen , David Woodhouse , Josh Poimboeuf , Linus Torvalds , Peter Zijlstra , Thomas Gleixner , Will Deacon , linux-arch@vger.kernel.org, Ingo Molnar Subject: [PATCH 4.9 39/86] nospec: Include dependency Date: Fri, 16 Mar 2018 16:23:02 +0100 Message-Id: <20180316152320.039234992@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180316152317.167709497@linuxfoundation.org> References: <20180316152317.167709497@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1595108559026857789?= X-GMAIL-MSGID: =?utf-8?q?1595108790801741788?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Williams commit eb6174f6d1be16b19cfa43dac296bfed003ce1a6 upstream. The nospec.h header expects the per-architecture header file to optionally define array_index_mask_nospec(). Include that dependency to prevent inadvertent fallback to the default array_index_mask_nospec() implementation. The default implementation may not provide a full mitigation on architectures that perform data value speculation. Reported-by: Christian Borntraeger Signed-off-by: Dan Williams Cc: Andy Lutomirski Cc: Arjan van de Ven Cc: Borislav Petkov Cc: Dave Hansen Cc: David Woodhouse Cc: Greg Kroah-Hartman Cc: Josh Poimboeuf Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Will Deacon Cc: linux-arch@vger.kernel.org Link: http://lkml.kernel.org/r/151881605404.17395.1341935530792574707.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman --- include/linux/nospec.h | 1 + 1 file changed, 1 insertion(+) --- a/include/linux/nospec.h +++ b/include/linux/nospec.h @@ -5,6 +5,7 @@ #ifndef _LINUX_NOSPEC_H #define _LINUX_NOSPEC_H +#include /** * array_index_mask_nospec() - generate a ~0 mask when index < size, 0 otherwise