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 91F9C37707; Sun, 5 May 2024 16:07:00 +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=1714925220; cv=none; b=gr7dg9xR2QnYbKCHNu0ABI84OTyz0M9fKwEVCD3tt1qMEwcBitbz6xnHhqgEwA+z0K+OxbKH2siaisGr385i0VtN1cbyCoWXdVp8muZLjAhBPkfSryiswXgenTyK9Q1enL50sfeino/4q8GDwA5ueh8s92v5IIM/gr99F7NRe8U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714925220; c=relaxed/simple; bh=M6QQiy27Yx7cZTOC0617KB9Ln6pKKwikPWIcgenY/bM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=aE4ylf3ALZho69UjXZrZ9FXYEvXjk5GQzZTzWuidZzcBL7koHNnPx/QN4qbY3SfXaXV92Hbae7aaXbqKqrZ0gw0SOo2ERg6dXK52Oo1Gxkefujp/CSYlu0dOKtz57d/P8f7OmwnyTgDknfF1763U1GA+i7RfrwlFLa4vQo7JiK0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qq9xkaB6; 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="qq9xkaB6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F4F3C4DDE3; Sun, 5 May 2024 16:06:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1714925220; bh=M6QQiy27Yx7cZTOC0617KB9Ln6pKKwikPWIcgenY/bM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qq9xkaB6DJwbvT6OTP2sGk7b6G6bmDN5GyK5sBXSm32BVbedH8jHvu58xQEar8ba4 uKzUigAgbBAtsz8r5l3mt2L2za5eSKU/+BjQNHwkb8bkk1dSzjGw0MuhLVplgL5ZP8 9+4Xjjkzq/fb5aRZ15hEIYgAO+SLQ3ZdibwPKIo+aOqxO1Wde5HY2qBWwQ/K0irIeT ivaaNIlis9trjR8Xspz86sAH3Biv9Y1hr0lxZc08RADzGXQ7JtgHd1tAb126rA5WHB b8dLhnVtioffkmnpyWBCyjSpVlTprGY0DDKi7/kPoX4BYqxHmygNlAT6hSyOu4Q7Tl 8KyBh8i4EO9TA== From: Mike Rapoport To: linux-kernel@vger.kernel.org Cc: Alexandre Ghiti , Andrew Morton , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , Catalin Marinas , Christophe Leroy , "David S. Miller" , Dinh Nguyen , Donald Dutile , Eric Chanudet , Heiko Carstens , Helge Deller , Huacai Chen , Kent Overstreet , Liviu Dudau , Luis Chamberlain , Mark Rutland , Masami Hiramatsu , Michael Ellerman , Mike Rapoport , Nadav Amit , Palmer Dabbelt , Peter Zijlstra , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Rick Edgecombe , Russell King , Sam Ravnborg , Song Liu , Steven Rostedt , Thomas Bogendoerfer , Thomas Gleixner , Will Deacon , bpf@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, netdev@vger.kernel.org, sparclinux@vger.kernel.org, x86@kernel.org Subject: [PATCH RESEND v8 01/16] arm64: module: remove unneeded call to kasan_alloc_module_shadow() Date: Sun, 5 May 2024 19:06:13 +0300 Message-ID: <20240505160628.2323363-2-rppt@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240505160628.2323363-1-rppt@kernel.org> References: <20240505160628.2323363-1-rppt@kernel.org> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: "Mike Rapoport (IBM)" Since commit f6f37d9320a1 ("arm64: select KASAN_VMALLOC for SW/HW_TAGS modes") KASAN_VMALLOC is always enabled when KASAN is on. This means that allocations in module_alloc() will be tracked by KASAN protection for vmalloc() and that kasan_alloc_module_shadow() will be always an empty inline and there is no point in calling it. Drop meaningless call to kasan_alloc_module_shadow() from module_alloc(). Signed-off-by: Mike Rapoport (IBM) --- arch/arm64/kernel/module.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c index 47e0be610bb6..e92da4da1b2a 100644 --- a/arch/arm64/kernel/module.c +++ b/arch/arm64/kernel/module.c @@ -141,11 +141,6 @@ void *module_alloc(unsigned long size) __func__); } - if (p && (kasan_alloc_module_shadow(p, size, GFP_KERNEL) < 0)) { - vfree(p); - return NULL; - } - /* Memory is intended to be executable, reset the pointer tag. */ return kasan_reset_tag(p); } -- 2.43.0 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 70D3FC04FFE for ; Sun, 5 May 2024 16:07:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=uWa569Spl6eGxd51iOYucP6jjJkdg1FUAKEALKGmaic=; b=jIahPaoJo9khus zWiICGz5iFT21D2xmFReoocFVCyMVXpm9wqbXukLvMDBprgnVF0X0Vgp2AFeHeD6563OPhkRnMXgO +JUx9Mgoj7svzlkfqSM8uxjsHooj700x+Tfegtv4FkpO+08TjCiAyOocBk6+oS3U86TbY2O5QYxKm zled2imdO6hziztRCOzPsSFszUx1AwY9U/w7ReVGq1BFVM3G6uNVxL5ny9a8KBvPTairWEhSsz0wD 6XlPf+OkMWoteFSUrJPJoRwikeQZ9Ua1at2k41hvlvxy4asMHqxJw/C96t2gYHeXdcBah+rmp30+q uo+lg16RZwoPPKBdzVkA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s3eOI-00000004gmO-3ZUD; Sun, 05 May 2024 16:07:07 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s3eOD-00000004ghu-2lpq; Sun, 05 May 2024 16:07:03 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 8666060C90; Sun, 5 May 2024 16:07:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F4F3C4DDE3; Sun, 5 May 2024 16:06:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1714925220; bh=M6QQiy27Yx7cZTOC0617KB9Ln6pKKwikPWIcgenY/bM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qq9xkaB6DJwbvT6OTP2sGk7b6G6bmDN5GyK5sBXSm32BVbedH8jHvu58xQEar8ba4 uKzUigAgbBAtsz8r5l3mt2L2za5eSKU/+BjQNHwkb8bkk1dSzjGw0MuhLVplgL5ZP8 9+4Xjjkzq/fb5aRZ15hEIYgAO+SLQ3ZdibwPKIo+aOqxO1Wde5HY2qBWwQ/K0irIeT ivaaNIlis9trjR8Xspz86sAH3Biv9Y1hr0lxZc08RADzGXQ7JtgHd1tAb126rA5WHB b8dLhnVtioffkmnpyWBCyjSpVlTprGY0DDKi7/kPoX4BYqxHmygNlAT6hSyOu4Q7Tl 8KyBh8i4EO9TA== From: Mike Rapoport To: linux-kernel@vger.kernel.org Cc: Alexandre Ghiti , Andrew Morton , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , Catalin Marinas , Christophe Leroy , "David S. Miller" , Dinh Nguyen , Donald Dutile , Eric Chanudet , Heiko Carstens , Helge Deller , Huacai Chen , Kent Overstreet , Liviu Dudau , Luis Chamberlain , Mark Rutland , Masami Hiramatsu , Michael Ellerman , Mike Rapoport , Nadav Amit , Palmer Dabbelt , Peter Zijlstra , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Rick Edgecombe , Russell King , Sam Ravnborg , Song Liu , Steven Rostedt , Thomas Bogendoerfer , Thomas Gleixner , Will Deacon , bpf@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, netdev@vger.kernel.org, sparclinux@vger.kernel.org, x86@kernel.org Subject: [PATCH RESEND v8 01/16] arm64: module: remove unneeded call to kasan_alloc_module_shadow() Date: Sun, 5 May 2024 19:06:13 +0300 Message-ID: <20240505160628.2323363-2-rppt@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240505160628.2323363-1-rppt@kernel.org> References: <20240505160628.2323363-1-rppt@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240505_090701_820478_BB2E6437 X-CRM114-Status: GOOD ( 11.75 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: "Mike Rapoport (IBM)" Since commit f6f37d9320a1 ("arm64: select KASAN_VMALLOC for SW/HW_TAGS modes") KASAN_VMALLOC is always enabled when KASAN is on. This means that allocations in module_alloc() will be tracked by KASAN protection for vmalloc() and that kasan_alloc_module_shadow() will be always an empty inline and there is no point in calling it. Drop meaningless call to kasan_alloc_module_shadow() from module_alloc(). Signed-off-by: Mike Rapoport (IBM) --- arch/arm64/kernel/module.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c index 47e0be610bb6..e92da4da1b2a 100644 --- a/arch/arm64/kernel/module.c +++ b/arch/arm64/kernel/module.c @@ -141,11 +141,6 @@ void *module_alloc(unsigned long size) __func__); } - if (p && (kasan_alloc_module_shadow(p, size, GFP_KERNEL) < 0)) { - vfree(p); - return NULL; - } - /* Memory is intended to be executable, reset the pointer tag. */ return kasan_reset_tag(p); } -- 2.43.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv 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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 594FEC04FFE for ; Sun, 5 May 2024 16:08:17 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=qq9xkaB6; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4VXTwc007Nz3cY8 for ; Mon, 6 May 2024 02:08:15 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=qq9xkaB6; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=139.178.84.217; helo=dfw.source.kernel.org; envelope-from=rppt@kernel.org; receiver=lists.ozlabs.org) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4VXTvB2Ct5z3cTt for ; Mon, 6 May 2024 02:07:02 +1000 (AEST) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 8666060C90; Sun, 5 May 2024 16:07:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F4F3C4DDE3; Sun, 5 May 2024 16:06:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1714925220; bh=M6QQiy27Yx7cZTOC0617KB9Ln6pKKwikPWIcgenY/bM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qq9xkaB6DJwbvT6OTP2sGk7b6G6bmDN5GyK5sBXSm32BVbedH8jHvu58xQEar8ba4 uKzUigAgbBAtsz8r5l3mt2L2za5eSKU/+BjQNHwkb8bkk1dSzjGw0MuhLVplgL5ZP8 9+4Xjjkzq/fb5aRZ15hEIYgAO+SLQ3ZdibwPKIo+aOqxO1Wde5HY2qBWwQ/K0irIeT ivaaNIlis9trjR8Xspz86sAH3Biv9Y1hr0lxZc08RADzGXQ7JtgHd1tAb126rA5WHB b8dLhnVtioffkmnpyWBCyjSpVlTprGY0DDKi7/kPoX4BYqxHmygNlAT6hSyOu4Q7Tl 8KyBh8i4EO9TA== From: Mike Rapoport To: linux-kernel@vger.kernel.org Subject: [PATCH RESEND v8 01/16] arm64: module: remove unneeded call to kasan_alloc_module_shadow() Date: Sun, 5 May 2024 19:06:13 +0300 Message-ID: <20240505160628.2323363-2-rppt@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240505160628.2323363-1-rppt@kernel.org> References: <20240505160628.2323363-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , x86@kernel.org, Sam Ravnborg , Peter Zijlstra , Catalin Marinas , Russell King , Song Liu , Donald Dutile , sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, Nadav Amit , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Helge Deller , Huacai Chen , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , linux-trace-kernel@vger.kernel.org, Alexandre Ghiti , Will Deacon , Heiko Carstens , Steven Rostedt , loongarch@lists.linux.dev, Thomas Gleixner , bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Liviu Dudau , Thomas Bogendoerfer , linux-parisc@vger.kernel.org, =?UTF-8?q?Philippe=20Mathieu-D aud=C3=A9?= , linux-mm@kvack.org, netdev@vger.kernel.org, Kent Overstreet , linux-mips@vger.kernel.org, Dinh Nguyen , Luis Chamberlain , Eric Chanudet , Palmer Dabbelt , Masami Hiramatsu , linux-modules@vger.kernel.org, Andrew Morton , Rick Edgecombe , linuxppc-dev@lists.ozlabs.org, "David S. Miller" , Mike Rapoport Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: "Mike Rapoport (IBM)" Since commit f6f37d9320a1 ("arm64: select KASAN_VMALLOC for SW/HW_TAGS modes") KASAN_VMALLOC is always enabled when KASAN is on. This means that allocations in module_alloc() will be tracked by KASAN protection for vmalloc() and that kasan_alloc_module_shadow() will be always an empty inline and there is no point in calling it. Drop meaningless call to kasan_alloc_module_shadow() from module_alloc(). Signed-off-by: Mike Rapoport (IBM) --- arch/arm64/kernel/module.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c index 47e0be610bb6..e92da4da1b2a 100644 --- a/arch/arm64/kernel/module.c +++ b/arch/arm64/kernel/module.c @@ -141,11 +141,6 @@ void *module_alloc(unsigned long size) __func__); } - if (p && (kasan_alloc_module_shadow(p, size, GFP_KERNEL) < 0)) { - vfree(p); - return NULL; - } - /* Memory is intended to be executable, reset the pointer tag. */ return kasan_reset_tag(p); } -- 2.43.0 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 B278EC4345F for ; Sun, 5 May 2024 16:07:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ETA3vspOVT+/VB9v2tjXXqy1IG7cq8BEG03uD8FfWYI=; b=aCvJK0rV5KA93F OHEyfvFxznpQ8+uhpU0ltT3Ba9Y0m0+UMbXOr6kSx7nGjx4ZdQHacKp4Ar6aGxjSQHgYCZLMk1mHA 7VnpuvvMifOol1F966P/axbI4XZSexP5jCi7eFASi2NRxxFJATWI/H54eTTkkK7iELtGVWyUGpRK6 gCT8sR69VGKioDK1E0t0W6Yn/YTRispHx9sso+pvG7OGI6i1vxY6Q83dsJ0JLBBf+eh/3m/JrUvdd mRppkP0ggygwT29nFT1/KY08Z/gdZ2fRTSUIkEdcoLmyNovQ48mEA0bQCUfxtyhdkjmr8nOOuNFs6 MD6xosAHG8YmTz+0oYWA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s3eOH-00000004glP-3KJJ; Sun, 05 May 2024 16:07:05 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s3eOD-00000004ghu-2lpq; Sun, 05 May 2024 16:07:03 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 8666060C90; Sun, 5 May 2024 16:07:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F4F3C4DDE3; Sun, 5 May 2024 16:06:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1714925220; bh=M6QQiy27Yx7cZTOC0617KB9Ln6pKKwikPWIcgenY/bM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qq9xkaB6DJwbvT6OTP2sGk7b6G6bmDN5GyK5sBXSm32BVbedH8jHvu58xQEar8ba4 uKzUigAgbBAtsz8r5l3mt2L2za5eSKU/+BjQNHwkb8bkk1dSzjGw0MuhLVplgL5ZP8 9+4Xjjkzq/fb5aRZ15hEIYgAO+SLQ3ZdibwPKIo+aOqxO1Wde5HY2qBWwQ/K0irIeT ivaaNIlis9trjR8Xspz86sAH3Biv9Y1hr0lxZc08RADzGXQ7JtgHd1tAb126rA5WHB b8dLhnVtioffkmnpyWBCyjSpVlTprGY0DDKi7/kPoX4BYqxHmygNlAT6hSyOu4Q7Tl 8KyBh8i4EO9TA== From: Mike Rapoport To: linux-kernel@vger.kernel.org Cc: Alexandre Ghiti , Andrew Morton , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , Catalin Marinas , Christophe Leroy , "David S. Miller" , Dinh Nguyen , Donald Dutile , Eric Chanudet , Heiko Carstens , Helge Deller , Huacai Chen , Kent Overstreet , Liviu Dudau , Luis Chamberlain , Mark Rutland , Masami Hiramatsu , Michael Ellerman , Mike Rapoport , Nadav Amit , Palmer Dabbelt , Peter Zijlstra , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Rick Edgecombe , Russell King , Sam Ravnborg , Song Liu , Steven Rostedt , Thomas Bogendoerfer , Thomas Gleixner , Will Deacon , bpf@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, netdev@vger.kernel.org, sparclinux@vger.kernel.org, x86@kernel.org Subject: [PATCH RESEND v8 01/16] arm64: module: remove unneeded call to kasan_alloc_module_shadow() Date: Sun, 5 May 2024 19:06:13 +0300 Message-ID: <20240505160628.2323363-2-rppt@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240505160628.2323363-1-rppt@kernel.org> References: <20240505160628.2323363-1-rppt@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240505_090701_820478_BB2E6437 X-CRM114-Status: GOOD ( 11.75 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: "Mike Rapoport (IBM)" Since commit f6f37d9320a1 ("arm64: select KASAN_VMALLOC for SW/HW_TAGS modes") KASAN_VMALLOC is always enabled when KASAN is on. This means that allocations in module_alloc() will be tracked by KASAN protection for vmalloc() and that kasan_alloc_module_shadow() will be always an empty inline and there is no point in calling it. Drop meaningless call to kasan_alloc_module_shadow() from module_alloc(). Signed-off-by: Mike Rapoport (IBM) --- arch/arm64/kernel/module.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c index 47e0be610bb6..e92da4da1b2a 100644 --- a/arch/arm64/kernel/module.c +++ b/arch/arm64/kernel/module.c @@ -141,11 +141,6 @@ void *module_alloc(unsigned long size) __func__); } - if (p && (kasan_alloc_module_shadow(p, size, GFP_KERNEL) < 0)) { - vfree(p); - return NULL; - } - /* Memory is intended to be executable, reset the pointer tag. */ return kasan_reset_tag(p); } -- 2.43.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel