From nobody Tue Feb 10 17:31:14 2026 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 933E0481235 for ; Wed, 21 Jan 2026 09:59:21 +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=1768989565; cv=none; b=GijjZGEdBhJvcKRak6T4a/NMDzywvKAWZ/JMLAirR5pMCfiMP5NiIgzJP946kbomNP1nVN2pWHtbWkNK5xROusdnek2Mz6jzFqAJTJR9S+E8Pw+4ikdVny2qHXjCLYCpc9jhhUN8+4kUMOY4riv4ctFW2jb2oPRXbjVj1k+6GvM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768989565; c=relaxed/simple; bh=jcVRf57USTrK+cAK3eQAatxh7DWevSbXY0QtYYZhX60=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=U66OxthrbIdy/lqPl9jrNVwgYqi+ss2ZoNVkqwctZ5pf2TdoXsxepG9oJzLEHAFQX19tkA6ayyH7mdrMWPbZRhYajT5lepgANp+nldqO/Bk4WfAb7HEk29VDyOa7WBrZV2uNVelY5NQX3LTUz7kQT1vRmKz+dT+4ReRM0+/TQk0= 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 _____8AxEvFxo3BpBRELAA--.36724S3; Wed, 21 Jan 2026 17:59:13 +0800 (CST) Received: from linux.localdomain (unknown [113.200.148.30]) by front1 (Coremail) with SMTP id qMiowJCxvsJvo3BpdUMpAA--.17586S3; Wed, 21 Jan 2026 17:59:12 +0800 (CST) From: Tiezhu Yang To: Huacai Chen Cc: loongarch@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v2 1/4] LoongArch: Use %px to print unmodified unwinding address Date: Wed, 21 Jan 2026 17:59:08 +0800 Message-ID: <20260121095911.20868-2-yangtiezhu@loongson.cn> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20260121095911.20868-1-yangtiezhu@loongson.cn> References: <20260121095911.20868-1-yangtiezhu@loongson.cn> 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: qMiowJCxvsJvo3BpdUMpAA--.17586S3 X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj9xXoW7GFWkJr4rCFW5Aw4kCw1xJFc_yoWDJFX_X3 4xJw48GrZaywn8Z3Z8XF1fJa47Za10yF9Y93ZrZ3yIy34YvF17JrZ3Xw13Aw1qgr4rCrZ8 J397Wr9Ykw1IyosvyTuYvTs0mTUanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUj1kv1TuYvT s0mT0YCTnIWjqI5I8CrVACY4xI64kE6c02F40Ex7xfYxn0WfASr-VFAUDa7-sFnT9fnUUI cSsGvfJTRUUUb7AYFVCjjxCrM7AC8VAFwI0_Jr0_Gr1l1xkIjI8I6I8E6xAIw20EY4v20x vaj40_Wr0E3s1l1IIY67AEw4v_Jrv_JF1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxS w2x7M28EF7xvwVC0I7IYx2IY67AKxVWUCVW8JwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxV WUJVW8JwA2z4x0Y4vEx4A2jsIE14v26r4UJVWxJr1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6r4UJVWxJr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqjxCEc2xF0cIa020Ex4CE44I27w Aqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_JF0_Jw1lYx0Ex4A2jsIE 14v26r4j6F4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCF04k20xvY0x 0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E 7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jrv_JF1lIxkGc2Ij64vIr41lIxAIcV C0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Jr0_Gr1lIxAIcVCF 04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7 CjxVAFwI0_Jr0_GrUvcSsGvfC2KfnxnUUI43ZEXa7IU8P5r7UUUUU== Content-Type: text/plain; charset="utf-8" Currently, use %p to prevent leaking information about the kernel memory layout when printing the pc address, but the kernel log messages are not useful to debug problem if bt_address() returns 0. Given that the type of "pc" variable is unsigned long, it should use %px to print the unmodified unwinding address. Signed-off-by: Tiezhu Yang --- arch/loongarch/kernel/unwind_orc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/loongarch/kernel/unwind_orc.c b/arch/loongarch/kernel/unw= ind_orc.c index 8a6e3429a860..d6b3688a1ce9 100644 --- a/arch/loongarch/kernel/unwind_orc.c +++ b/arch/loongarch/kernel/unwind_orc.c @@ -494,7 +494,7 @@ bool unwind_next_frame(struct unwind_state *state) =20 state->pc =3D bt_address(pc); if (!state->pc) { - pr_err("cannot find unwind pc at %p\n", (void *)pc); + pr_err("cannot find unwind pc at %px\n", (void *)pc); goto err; } =20 --=20 2.42.0