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 147282C08BB; Fri, 18 Jul 2025 13:04:09 +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=1752843850; cv=none; b=otpCtaWkDSXuwpQGtfETqHzzMCHn7vpo30KQF9Um8eYWyqrj1hYJaMv5H8cfq306GrkZZ65aBgQG4PNLQt/27GTruAu0TacM87LNAjRW0JNP2AK8DoJ8cNqopGVUYLIBJ+3F4jOW7SoSh62ijBDHaZcBrptQpiEGxuwUDzLORYk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752843850; c=relaxed/simple; bh=e9JV0Z0iQk3JJlBwUijpHfs6OkBiHHnta1gSH+W9zOQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=q4cNNy1iQbLnNATt4KxTKtj9IG2Zhl9rd7ci+oBA/SHW2T5SW4fUF4xQ8oImpC2R/jJY/aSudbc54c9gc/yZdvp/csqTaOBlRpxYLsJaHvtvBjWKZzexpC9hYBaOhIbZb/0NYFzgdmhdifAWo/C+Rcvk2rkl+0gR8vdX5/+Akbc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dSHIa+Mr; 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="dSHIa+Mr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 76E41C4CEEB; Fri, 18 Jul 2025 13:04:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752843849; bh=e9JV0Z0iQk3JJlBwUijpHfs6OkBiHHnta1gSH+W9zOQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dSHIa+MrlwXDsebHQMAOBrcdcgNNRuFu1OTjumS8fxdFBEiWA23QLsWePa1HP1jXa DP7rD2arOXkIYe04ayLXrk6t48TKPhah+qrfUQk4ky4F4LbYRccQTgZL/kXp3nQJYB nrJLucASNeNNY+00+8mINN6UNjKqm5BId8c4coJWxb2glH/Jf36YSDoPuBM+WSroOr n4i8t1jm9SduQegLb6spa4A1/MFx1Gu+g8rrZJhbtALp3VA5PnisWIVkS3OfF1re3r AMqmvtywhenvyRLdeSc0OM7qWEwqaMFUvF5JgNdpEgu+srMur2jwIhNPEyXJW5TR2q 5vV09+6vxMu3A== Date: Fri, 18 Jul 2025 14:04:00 +0100 From: Lee Jones To: Kees Cook Cc: Arnd Bergmann , Nishanth Menon , Russell King , Daniel Lezcano , Thomas Gleixner , Santosh Shilimkar , Allison Randal , Greg Kroah-Hartman , linux-arm-kernel@lists.infradead.org, Ingo Molnar , "Gustavo A. R. Silva" , Christoph Hellwig , 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, 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: Re: [PATCH v3 05/13] arm: Handle KCOV __init vs inline mismatches Message-ID: <20250718130400.GB11056@google.com> References: <20250717231756.make.423-kees@kernel.org> <20250717232519.2984886-5-kees@kernel.org> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20250717232519.2984886-5-kees@kernel.org> On Thu, 17 Jul 2025, Kees Cook wrote: > 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 > arm this exposed several places where __init annotations were missing > but ended up being "accidentally correct". Fix these cases and force > several functions to be inline with __always_inline. > > Acked-by: Nishanth Menon > Signed-off-by: Kees Cook > --- > Cc: Russell King > Cc: Daniel Lezcano > Cc: Thomas Gleixner > Cc: Nishanth Menon > Cc: Santosh Shilimkar > Cc: Lee Jones > Cc: Allison Randal > Cc: Greg Kroah-Hartman > Cc: > --- > include/linux/mfd/dbx500-prcmu.h | 2 +- Acked-by: Lee Jones > arch/arm/mm/cache-feroceon-l2.c | 2 +- > arch/arm/mm/cache-tauros2.c | 2 +- > drivers/clocksource/timer-orion.c | 2 +- > drivers/soc/ti/pm33xx.c | 2 +- > 5 files changed, 5 insertions(+), 5 deletions(-) > > diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h > index 98567623c9df..828362b7860c 100644 > --- a/include/linux/mfd/dbx500-prcmu.h > +++ b/include/linux/mfd/dbx500-prcmu.h > @@ -213,7 +213,7 @@ struct prcmu_fw_version { > > #if defined(CONFIG_UX500_SOC_DB8500) > > -static inline void prcmu_early_init(void) > +static inline void __init prcmu_early_init(void) > { > db8500_prcmu_early_init(); > } > diff --git a/arch/arm/mm/cache-feroceon-l2.c b/arch/arm/mm/cache-feroceon-l2.c > index 25dbd84a1aaf..2bfefb252ffd 100644 > --- a/arch/arm/mm/cache-feroceon-l2.c > +++ b/arch/arm/mm/cache-feroceon-l2.c > @@ -295,7 +295,7 @@ static inline u32 read_extra_features(void) > return u; > } > > -static inline void write_extra_features(u32 u) > +static inline void __init write_extra_features(u32 u) > { > __asm__("mcr p15, 1, %0, c15, c1, 0" : : "r" (u)); > } > diff --git a/arch/arm/mm/cache-tauros2.c b/arch/arm/mm/cache-tauros2.c > index b1e1aba602f7..bfe166ccace0 100644 > --- a/arch/arm/mm/cache-tauros2.c > +++ b/arch/arm/mm/cache-tauros2.c > @@ -177,7 +177,7 @@ static inline void __init write_actlr(u32 actlr) > __asm__("mcr p15, 0, %0, c1, c0, 1\n" : : "r" (actlr)); > } > > -static void enable_extra_feature(unsigned int features) > +static void __init enable_extra_feature(unsigned int features) > { > u32 u; > > diff --git a/drivers/clocksource/timer-orion.c b/drivers/clocksource/timer-orion.c > index 49e86cb70a7a..61f1e27fc41e 100644 > --- a/drivers/clocksource/timer-orion.c > +++ b/drivers/clocksource/timer-orion.c > @@ -43,7 +43,7 @@ static struct delay_timer orion_delay_timer = { > .read_current_timer = orion_read_timer, > }; > > -static void orion_delay_timer_init(unsigned long rate) > +static void __init orion_delay_timer_init(unsigned long rate) > { > orion_delay_timer.freq = rate; > register_current_timer_delay(&orion_delay_timer); > diff --git a/drivers/soc/ti/pm33xx.c b/drivers/soc/ti/pm33xx.c > index dfdff186c805..dc52a2197d24 100644 > --- a/drivers/soc/ti/pm33xx.c > +++ b/drivers/soc/ti/pm33xx.c > @@ -145,7 +145,7 @@ static int am33xx_do_sram_idle(u32 wfi_flags) > return pm_ops->cpu_suspend(am33xx_do_wfi_sram, wfi_flags); > } > > -static int __init am43xx_map_gic(void) > +static int am43xx_map_gic(void) > { > gic_dist_base = ioremap(AM43XX_GIC_DIST_BASE, SZ_4K); > > -- > 2.34.1 > -- Lee Jones [李琼斯] 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 6D876C83F17 for ; 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Fri, 18 Jul 2025 13:06:50 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uckl0-0000000CeXP-3ouP; Fri, 18 Jul 2025 13:04:11 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id E3DEC601D9; Fri, 18 Jul 2025 13:04:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 76E41C4CEEB; Fri, 18 Jul 2025 13:04:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752843849; bh=e9JV0Z0iQk3JJlBwUijpHfs6OkBiHHnta1gSH+W9zOQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dSHIa+MrlwXDsebHQMAOBrcdcgNNRuFu1OTjumS8fxdFBEiWA23QLsWePa1HP1jXa DP7rD2arOXkIYe04ayLXrk6t48TKPhah+qrfUQk4ky4F4LbYRccQTgZL/kXp3nQJYB nrJLucASNeNNY+00+8mINN6UNjKqm5BId8c4coJWxb2glH/Jf36YSDoPuBM+WSroOr n4i8t1jm9SduQegLb6spa4A1/MFx1Gu+g8rrZJhbtALp3VA5PnisWIVkS3OfF1re3r AMqmvtywhenvyRLdeSc0OM7qWEwqaMFUvF5JgNdpEgu+srMur2jwIhNPEyXJW5TR2q 5vV09+6vxMu3A== Date: Fri, 18 Jul 2025 14:04:00 +0100 From: Lee Jones To: Kees Cook Cc: Arnd Bergmann , Nishanth Menon , Russell King , Daniel Lezcano , Thomas Gleixner , Santosh Shilimkar , Allison Randal , Greg Kroah-Hartman , linux-arm-kernel@lists.infradead.org, Ingo Molnar , "Gustavo A. R. Silva" , Christoph Hellwig , 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, 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: Re: [PATCH v3 05/13] arm: Handle KCOV __init vs inline mismatches Message-ID: <20250718130400.GB11056@google.com> References: <20250717231756.make.423-kees@kernel.org> <20250717232519.2984886-5-kees@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20250717232519.2984886-5-kees@kernel.org> X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list 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