From nobody Tue Dec 2 00:26:07 2025 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 8D34618AFD for ; Tue, 25 Nov 2025 06:35:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764052529; cv=none; b=jkq801cirgBDPtgvJhAyWHj4ZTZ6At5vrNzA8W8IgczElYRv+xiJVt9gJcGQjDwQUQJEjk2QwuPCpdQsIqCbyAcKbSUuOxoWW+tSAwkeY1oZud5ZaDMDtJ8OBtOdG/c+MFVWFF3lA79cifiPxYN6ft4PQA8ZucvBj5NbgzqO5qQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764052529; c=relaxed/simple; bh=FK+sTe+yY9WPp8HqcCMalmIk11dYXmPaQhcbZ5fVymA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=P99sbZVDTq08MwwiT6TnBGVkmRCm9ZLEF5OkaRRmqYeIHkOU9DsDbBPj0V4XhgDNNjJiso6dSGbmVzfSDC8m4KJ5qf3Tp0d/rZ1wRRupH6zZfShhtjAwzX5rBrpEyNKNbV/N5/ceohybwny5qYA9UqLSguPKaSRbvII1wNgDsjQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [113.200.148.30]) by gateway (Coremail) with SMTP id _____8Cx5tArTiVpFMknAA--.20242S3; Tue, 25 Nov 2025 14:35:23 +0800 (CST) Received: from linux.localdomain (unknown [113.200.148.30]) by front1 (Coremail) with SMTP id qMiowJAxE+QqTiVp4mw+AQ--.42151S2; Tue, 25 Nov 2025 14:35:23 +0800 (CST) From: Tiezhu Yang To: Huacai Chen Cc: loongarch@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v1] LoongArch: Use unsigned long for _end and _text Date: Tue, 25 Nov 2025 14:35:07 +0800 Message-ID: <20251125063507.32177-1-yangtiezhu@loongson.cn> X-Mailer: git-send-email 2.42.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJAxE+QqTiVp4mw+AQ--.42151S2 X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj93XoW7ZFy5tFW8Jr43Jr18XF45twc_yoW8Gr4kpr y2yanFqFWrWFs7JayDX345ury5G3Z7W3ySgFsrK34ruF13ZF15Wa48u3ZFqF40qayfKF4S vry5t3sIva1UCagCm3ZEXasCq-sJn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUkYb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Jr0_JF4l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Jr0_Gr1l84ACjcxK6I8E87Iv67AKxVWxJVW8Jr1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6r4UJVWxJr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqjxCEc2xF0cIa020Ex4CE44I27w Aqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_JF0_Jw1lYx0Ex4A2jsIE 14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCF04k20xvY0x 0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E 7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jrv_JF1lIxkGc2Ij64vIr41lIxAIcV C0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Jr0_Gr1lIxAIcVCF 04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7 CjxVAFwI0_Jr0_GrUvcSsGvfC2KfnxnUUI43ZEXa7IU1LiSJUUUUU== Content-Type: text/plain; charset="utf-8" It is better to use unsigned long rather than long for _end and _text to calculate the kernel length. Cc: stable@vger.kernel.org # v6.3+ Fixes: e5f02b51fa0c ("LoongArch: Add support for kernel address space layou= t randomization (KASLR)") Signed-off-by: Tiezhu Yang --- arch/loongarch/kernel/relocate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/loongarch/kernel/relocate.c b/arch/loongarch/kernel/reloc= ate.c index b5e2312a2fca..76abbb8d2931 100644 --- a/arch/loongarch/kernel/relocate.c +++ b/arch/loongarch/kernel/relocate.c @@ -183,7 +183,7 @@ static inline void __init *determine_relocation_address= (void) if (kaslr_disabled()) return destination; =20 - kernel_length =3D (long)_end - (long)_text; + kernel_length =3D (unsigned long)_end - (unsigned long)_text; =20 random_offset =3D get_random_boot() << 16; random_offset &=3D (CONFIG_RANDOMIZE_BASE_MAX_OFFSET - 1); @@ -232,7 +232,7 @@ unsigned long __init relocate_kernel(void) early_memunmap(cmdline, COMMAND_LINE_SIZE); =20 if (random_offset) { - kernel_length =3D (long)(_end) - (long)(_text); + kernel_length =3D (unsigned long)(_end) - (unsigned long)(_text); =20 /* Copy the kernel to it's new location */ memcpy(location_new, _text, kernel_length); --=20 2.42.0