From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f178.google.com (mail-pl1-f178.google.com [209.85.214.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0B53C2F25 for ; Sat, 14 May 2022 21:54:18 +0000 (UTC) Received: by mail-pl1-f178.google.com with SMTP id i1so11104719plg.7 for ; Sat, 14 May 2022 14:54:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=FykryA/PR0f3p83HjJunId+gp3pqJzOIiL8j+Agnd3A=; b=P0ytf3VHbbsXrhqae2Zd5Ll2MuTMZ+sX3YHcECJ6uHTAKjjZna4wFiZzv5hRwMvEBn MxFkALqYT4Cep0hR0dt+cnddTbsgr75zHgcZlKpFQ9CIHgn+CBZ3EJ9Igtchk6wXVYPF Y/kmkar9pi2d7USkoTKnPI5F2B7oJSyz12a68= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=FykryA/PR0f3p83HjJunId+gp3pqJzOIiL8j+Agnd3A=; b=N2lAiuAD3ywfP7Z6nn7M0n3AGj/whkJkFUG6FQNLNgje8pNClwwH/AV7y3MUdn1fXr ls5RbOEVKyloHyEjNQ8sQDUy+5ls/d1J+/Fey7uU1Uz++CDhXsMt1gzWhOdxZtJ9wtdO 5moPtyMYjJ4WR786QXQpjBvn7PCnq+5cqgEgjP35F92lnq+DaxS7HHJqJXrtLh+H0emq UyFHRWYQkmpw45bvpsUIhar++bwozJAyi8PjpPKiqbuZRCr4I3T8el+NAy0kGl1UBg1H xi8m+vFhlPw0Mcx4QLW28M+Wd710Rnltgnljp0+dytNahzm1P/r6btogjJSPKCcj/Zup bp5g== X-Gm-Message-State: AOAM532HH+5a3WJaaQ3d0vfyzF+JWPFfSbh5ge3FjQXDKnZus3R3gLdn 0TkdzxFQId+KneLyLjLctnqkfw== X-Google-Smtp-Source: ABdhPJzoC13YHvqAZkelFuizL5j4/KrYwDhjo/xw/hl3PuFmx/isLndYV81BpaWdnzBIXYZT4z2fTA== X-Received: by 2002:a17:902:d507:b0:15e:afc4:85b5 with SMTP id b7-20020a170902d50700b0015eafc485b5mr10971844plg.52.1652565258544; Sat, 14 May 2022 14:54:18 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id fv7-20020a17090b0e8700b001cd4989fecfsm5694602pjb.27.2022.05.14.14.54.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 May 2022 14:54:18 -0700 (PDT) Date: Sat, 14 May 2022 14:54:17 -0700 From: Kees Cook To: Sami Tolvanen Cc: linux-kernel@vger.kernel.org, Josh Poimboeuf , Peter Zijlstra , x86@kernel.org, Catalin Marinas , Will Deacon , Mark Rutland , Nathan Chancellor , Nick Desaulniers , Joao Moreira , Sedat Dilek , Steven Rostedt , linux-hardening@vger.kernel.org, linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev Subject: Re: [RFC PATCH v2 12/21] treewide: Drop function_nocfi Message-ID: <202205141454.9EBF450@keescook> References: <20220513202159.1550547-1-samitolvanen@google.com> <20220513202159.1550547-13-samitolvanen@google.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220513202159.1550547-13-samitolvanen@google.com> On Fri, May 13, 2022 at 01:21:50PM -0700, Sami Tolvanen wrote: > With -fsanitize=kcfi, we no longer need function_nocfi() as > the compiler won't change function references to point to a > jump table. Remove all implementations and uses of the macro. > > Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook -- Kees Cook