From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793786456; b=VxIjUd++N9T3KkoTOxfvnusl8ptHAlYDTl2lmls86Xzk9eUe1mMFL8I3yee6tfVgXg71 EjCQdTBRQGk4l3uU0+LfA9vOCky1Op648IkfbWJyuSaxZDgCLaudZ8bMq3BbtX4WDMYn/ r/+bT1mMHNecfAIxCWfBoogSlZViYMppIJ4cuDJh7rwPXChQUE373KLgJlumU7xQRi7P1 DX1VSTy1Aboc9IMuY7uLUVLMZmFSae2X2MSCmNgnSdw9UkyDNTdFOJ69RRyBhvl/yKpfK pU7KJQvVAi/TGjZjFFT6SSyCFuOmpxDpBfof0kheZ3EYf75u+uTPOe8JoygbgYeAOTA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793786456; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:X-Developer-Signature:X-Developer-Key: Content-Transfer-Encoding; bh=TLGga1XJaEBstF4brRpspjABd42fAO01T3Tfq+b3WRY=; b=wik0h5F3UoE4qYewI4Y1AnZLrLjOxXomMPPoXBIbPjS4Lm/bljmrHkEnLzmoHTIihbU6 1B84NMhSdN6+cdf+iClkDQ7nT5vhP7huEglonjz3a6aEdiXJitD8nShF+vWxAKN4m9o7B nmRGXKAYLCN97kKOABgP0ewpPinl6tdJsnf+cuaTWZ6H7sAozEJoXviagZRI4pgGa6Mgs g0D/BWA6/hsmRWfoLJ5LT+w7iFpXCbNbLiTrC0r1mAcbDNso6V6pi6SyDI4EST3tVDKet AMvDPqHCl908SXJsY/xD1r0ANsRPqrGNAdd41TRwYE5pCr3MV82G2RagfUIDY+hqvCg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=W2Ev9q08; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BC1DB606A31B for ; Wed, 4 Nov 2026 10:00:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=W2Ev9q08 Received: by smtp.kernel.org (Postfix) with ESMTPSA id E546D1F00919; Wed, 4 Nov 2026 10:00:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793786455; bh=TLGga1XJaEBstF4brRpspjABd42fAO01T3Tfq+b3WRY=; h=From:To:Cc:Subject:Date; b=W2Ev9q08vDAgiRgNTKq5Un4MTwLYES1RVB+l2k5R9G/f+jDIKOGXck7brNysxlGFh 2E77lBCeSt3j6p6BmUbOW0XRHAY+0Xh7bKouztiSYawKHtfPHmLcBy5AJ1ZPL0aZKJ mahuY6wwahSnpiqjfRmHYGiR9yDS+USenR929FFlv3aZSPagKN5lnqa/4XssMKAvUS ZKLbgkUggUovr6kXJB4mdVmAcZh1noRKtQ7odm7eJh/PcXZpcYzKvOMaTCZ5Ws5HwD V1mWg1CBFqg8BmXTHdC5IS9pQYK0eGobHf23phDdLXjXYT4AHHEjRcNnpG8BV0q9q6 f4aB+hKwAUJZg== From: Thorsten Blum To: Catalin Marinas , Will Deacon , Mark Rutland , Thorsten Blum Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64: patching: Use uintptr_t in aarch64_insn_patch_text_nosync() Date: Wed, 4 Nov 2026 10:59:43 +0100 Message-ID: <20261104095943.97344-3-blum@kernel.org> X-Mailer: git-send-email 2.56.0 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1058; i=blum@kernel.org; h=from:subject; bh=ZO7mmyFV27Y400PIzYZNqMgtJo/xFwDj+vG/tyF0qNI=; b=owGbwMvMwCUWt7pQ4caZUj3G02pJDFmvmfhLb1xWOha/ZM3zMO2AJ5M/R7vNTZj7nP+qWIVI5 /bdGyWPdpSyMIhxMciKKbI8mPVjhm9pTeUmk4idMHNYmUCGMHBxCsBENNYwMnSePBEj9boz8E/T j3N7j9b7zpgdu1nO+8TjlSkG050mX7Nm+KdxumL2+ZItqcEe7lud9wodFXcqvbV5vf3taDO/KT7 bbjACAA== X-Developer-Key: i=blum@kernel.org; a=openpgp; fpr=1D60735E8AEF3BE473B69D84733678FD8DFEEAD4 Content-Transfer-Encoding: 8bit Use uintptr_t for tp instead of casting it multiple times and pass addr directly to aarch64_insn_write(). Signed-off-by: Thorsten Blum --- arch/arm64/kernel/patching.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/arch/arm64/kernel/patching.c b/arch/arm64/kernel/patching.c index 09f019c6547a..24333419a8f1 100644 --- a/arch/arm64/kernel/patching.c +++ b/arch/arm64/kernel/patching.c @@ -178,17 +178,16 @@ noinstr void *aarch64_insn_set(void *dst, u32 insn, size_t len) int __kprobes aarch64_insn_patch_text_nosync(void *addr, u32 insn) { - u32 *tp = addr; + uintptr_t tp = (uintptr_t)addr; int ret; /* A64 instructions must be word aligned */ - if ((uintptr_t)tp & 0x3) + if (tp & 0x3) return -EINVAL; - ret = aarch64_insn_write(tp, insn); + ret = aarch64_insn_write(addr, insn); if (ret == 0) - caches_clean_inval_pou((uintptr_t)tp, - (uintptr_t)tp + AARCH64_INSN_SIZE); + caches_clean_inval_pou(tp, tp + AARCH64_INSN_SIZE); return ret; }