From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 94AC48F7D for ; Wed, 19 Feb 2025 18:07:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739988427; cv=none; b=HF8Gj9iDifeto9kEjznLL5N4ErKUFhdQmWxYCD5ybdvfreg+sVEUQO5pZGnr44rI4gXW4TYhL9T9hT3qMe5Gh1J0T+Uf90zcdO8c3HCgyU5MujKRjgcLLZWh/QOyOBq4CTsouTmEmZQEHokiuwr9tN0QsJGtLinOaqpKhwMQ6DA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739988427; c=relaxed/simple; bh=Skh2wJ04F5Kr2nHySTRk+8wz68hyI06FRmvz74fCBME=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=SZC4Q/PhRvFkkOxQ2wXPnHxGBKuqPRsgdZDkTYqBVQdBI/ovOuMSRo4N4tWVcQnxVvsuCWDP02Zxa5luRYj5CpZZI3ZQQ/YxsWsS05Ft0xKNKLqbnsZzLYNt+FQiMz8HcdPB69bmN2q1yzILu8q8FrIODEyYASz55eN9pm0mVCM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WuiG6/kv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WuiG6/kv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1F346C4CED1; Wed, 19 Feb 2025 18:07:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1739988427; bh=Skh2wJ04F5Kr2nHySTRk+8wz68hyI06FRmvz74fCBME=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=WuiG6/kvAHVaC3VcqttYoHg1dZFUnl5QegNc1NeUQmBU8DM8bk3CqtOT0AitQEmbu bSBiJPcaDExA+ASX5rDD7O3trol6WTLwLz2usqn10HrEDSI8TqSx7E14mmpHE0IkCZ qUw3KdNIi2eOYP7wNY6CQ2YoM0ti5VKe5NfrnsxXhhlr+eoCtAF5k0yKvaJxBX9D4P N/2XtOtMtaHR+D5oFcqw7g1ql4//eT9dCz8K0CasltrJMPC/ZaT95KwijRQWtPk5rV 8xOXtVIOT6B7Wt65D98g72jnIlxK3TEMnJoRgwLy0moOOKYYopBc/Mz0SryD9sl4Yt CP1S9unbAvK5w== Date: Wed, 19 Feb 2025 10:07:04 -0800 From: Kees Cook To: Peter Zijlstra Cc: x86@kernel.org, linux-kernel@vger.kernel.org, alyssa.milburn@intel.com, scott.d.constable@intel.com, joao@overdrivepizza.com, andrew.cooper3@citrix.com, jpoimboe@kernel.org, jose.marchesi@oracle.com, hjl.tools@gmail.com, ndesaulniers@google.com, samitolvanen@google.com, nathan@kernel.org, ojeda@kernel.org, alexei.starovoitov@gmail.com, mhiramat@kernel.org, jmill@asu.edu Subject: Re: [PATCH v3 08/10] x86: BHI stubs Message-ID: <202502191006.923E600C3@keescook> References: <20250219162107.880673196@infradead.org> <20250219163515.150619755@infradead.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250219163515.150619755@infradead.org> On Wed, Feb 19, 2025 at 05:21:15PM +0100, Peter Zijlstra wrote: > --- a/arch/x86/lib/Makefile > +++ b/arch/x86/lib/Makefile > @@ -66,5 +66,6 @@ endif > lib-y += clear_page_64.o copy_page_64.o > lib-y += memmove_64.o memset_64.o > lib-y += copy_user_64.o copy_user_uncached_64.o > - lib-y += cmpxchg16b_emu.o > + lib-y += cmpxchg16b_emu.o > + lib-y += bhi.o > endif Unrelated whitespace fix? -- Kees Cook