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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8C471C54ED0 for ; Fri, 23 May 2025 04:58:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5WwsZAyhqCNKq8impC0uPdRnLe811mvhdI4uAc7GwKQ=; b=V8Z5aeN+GknstO2kPdOR4bngtT ckPlPPyd3msjxQ1h+VwSkr1ATV4ogyH/O20MyjE5rLE0Ys+kQKAiWWWWiLKF8X0GurcfZJiiyw3Df N6nNFBbsF/5bbyahFAdsBvar2/nOP/dhKulgctXRDKglGE+N96d0AVyTPVZO4o6QoeNuDXHIOdPBo f8qlyZ33JWqicokT6XGs8+aIdqG7p0R/WJF1V/qC6PzOF226P4jQaNfvkgyo3KvZi80xy4clv5bwg b0k+HpVi7u8+3tdUmpVOn/iBfjkwyVQhA2cNeKg/rFsbNVf/H59ikmyIUYrd5m0f8RnqnIpFiaLKV QiBVRn0Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uIKTk-00000002xGs-2QmH; Fri, 23 May 2025 04:57:56 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uIKC5-00000002tzE-2zgY; Fri, 23 May 2025 04:39:45 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 634464A959; Fri, 23 May 2025 04:39:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E840C4CEED; Fri, 23 May 2025 04:39:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747975181; bh=yaSxmxtYpasuc+rufEWrdAWe3aDh1VboHkgvW7Uuxmk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CHB1UIrXXIJNnDqoawhvxACuyRxlpr3fsHJOcaMiX78eZBw6bj2aCmamSdxBgr0Q1 cv2JxCHOnwvyafgtOlwyLeWkIJcvvmBOc3FGaH7CycNh6ciUxu783i7rIN1Q7uR/YZ egoHkAstCNIvH0Ni9mbt5Ty4Gh02RZ66vXL7zkVg5EvNVKTTIDuVY7AvMEtb0fYV8p mJKUBNr2h5nbAO7s6Ui4esyy2FZgHJ+NnCkDJYKNpnSZCOqTVyO+IRaFk0btgFjTdO S8daDPWHmwFh5MEl/KFRRxM9icxB3PHJq5dg1QlY9jE+fNHEdaX6TMoMVDjrVztIdI PtpSj3RRaZDNw== From: Kees Cook To: Arnd Bergmann Cc: Kees Cook , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Naveen N Rao , "Ritesh Harjani (IBM)" , "Aneesh Kumar K.V" , Andrew Morton , linuxppc-dev@lists.ozlabs.org, "Gustavo A. R. Silva" , Christoph Hellwig , Marco Elver , Andrey Konovalov , Andrey Ryabinin , Ard Biesheuvel , Masahiro Yamada , Nathan Chancellor , Nicolas Schier , Nick Desaulniers , Bill Wendling , Justin Stitt , linux-kernel@vger.kernel.org, x86@kernel.org, kasan-dev@googlegroups.com, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-efi@vger.kernel.org, linux-hardening@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-security-module@vger.kernel.org, linux-kselftest@vger.kernel.org, sparclinux@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH v2 08/14] powerpc: Handle KCOV __init vs inline mismatches Date: Thu, 22 May 2025 21:39:18 -0700 Message-Id: <20250523043935.2009972-8-kees@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250523043251.it.550-kees@kernel.org> References: <20250523043251.it.550-kees@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1981; i=kees@kernel.org; h=from:subject; bh=yaSxmxtYpasuc+rufEWrdAWe3aDh1VboHkgvW7Uuxmk=; b=owGbwMvMwCVmps19z/KJym7G02pJDBn6v3+dEGvzLNyc4frZMlegpp5xqfLf4qvOhQ6vClwWG c4+vkWro5SFQYyLQVZMkSXIzj3OxeNte7j7XEWYOaxMIEMYuDgFYCJ6nYwMa39MVvl34OWuxWLC YitLL7uZs+fqxoq1bLk+uZ0hXWGaIMP/IouHmyfNuDCZ8fKpT88FFNw8Sr8vU98je2Fj6/LNOe9 62AA= X-Developer-Key: i=kees@kernel.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250522_213941_900734_227D6951 X-CRM114-Status: GOOD ( 12.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org When KCOV is enabled all functions get instrumented, unless the __no_sanitize_coverage attribute is used. To prepare for __no_sanitize_coverage being applied to __init functions, we have to handle differences in how GCC's inline optimizations get resolved. For s390 this requires forcing a couple functions to be inline with __always_inline. Signed-off-by: Kees Cook --- Cc: Madhavan Srinivasan Cc: Michael Ellerman Cc: Nicholas Piggin Cc: Christophe Leroy Cc: Naveen N Rao Cc: "Ritesh Harjani (IBM)" Cc: "Aneesh Kumar K.V" Cc: Andrew Morton Cc: --- arch/powerpc/mm/book3s64/hash_utils.c | 2 +- arch/powerpc/mm/book3s64/radix_pgtable.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c index 5158aefe4873..93f1e1eb5ea6 100644 --- a/arch/powerpc/mm/book3s64/hash_utils.c +++ b/arch/powerpc/mm/book3s64/hash_utils.c @@ -409,7 +409,7 @@ static DEFINE_RAW_SPINLOCK(linear_map_kf_hash_lock); static phys_addr_t kfence_pool; -static inline void hash_kfence_alloc_pool(void) +static __always_inline void hash_kfence_alloc_pool(void) { if (!kfence_early_init_enabled()) goto err; diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c index 9f764bc42b8c..3238e9ed46b5 100644 --- a/arch/powerpc/mm/book3s64/radix_pgtable.c +++ b/arch/powerpc/mm/book3s64/radix_pgtable.c @@ -363,7 +363,7 @@ static int __meminit create_physical_mapping(unsigned long start, } #ifdef CONFIG_KFENCE -static inline phys_addr_t alloc_kfence_pool(void) +static __always_inline phys_addr_t alloc_kfence_pool(void) { phys_addr_t kfence_pool; -- 2.34.1