From nobody Tue Feb 10 17:30:42 2026 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 3362C314B8F for ; Wed, 24 Dec 2025 10:35:42 +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=1766572545; cv=none; b=N3xfMoEmeVa+0vBTqddmj44/yVT0011i/NoyUXwhwjIbbq+r804stfCvZQh781oa4uw2YIV2CsokxXXwqj+C56EyTyQNnkVyVwhfdhadzcdyiEMzrfPjHpxeDnXqvDi82weW9ldxoYoAVH6xJdCQ2+INRDyjbAPZ0dcMZO6XXsU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766572545; c=relaxed/simple; bh=ypFvyZm69/jminGaNJwnlAaaP6Sr0+rLixYiHkjbf/k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=R7sMPtC6dPKEm30vT7kPVd4VY9pw+sOTmencqwpey8/zNQlvqZ+3wrt/9ZwSH1TF1iZoSGaGxOycXaFN7+BK66hUN2sEwsFy9pDuBoASEBcP3kH/NqaIpWd6GHbfQsc7/xm1wBqTnOtEw65m70pxodKF0N82w9LNg/ILxrqWevk= 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 _____8CxKML6wUtp4LkCAA--.8594S3; Wed, 24 Dec 2025 18:35:38 +0800 (CST) Received: from linux.localdomain (unknown [113.200.148.30]) by front1 (Coremail) with SMTP id qMiowJCx2+D0wUtpGjsEAA--.13037S4; Wed, 24 Dec 2025 18:35:37 +0800 (CST) From: Tiezhu Yang To: Huacai Chen Cc: Josh Poimboeuf , loongarch@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH 2/2] LoongArch: Remove is_entry_func() and kernel_entry_end Date: Wed, 24 Dec 2025 18:35:16 +0800 Message-ID: <20251224103516.12654-3-yangtiezhu@loongson.cn> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20251224103516.12654-1-yangtiezhu@loongson.cn> References: <20251224103516.12654-1-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: qMiowJCx2+D0wUtpGjsEAA--.13037S4 X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj93XoW7WrWxZF1rtr47Ar4fCw1DXFc_yoW8CF15pF 9xAr1DXrWF9F97t34DXw109rWDJrn7Ww1agF9rKFyrGF12qr13Zr1Fvw1DXF90q3yFgFWr XFnY9r90ka1UAacCm3ZEXasCq-sJn29KB7ZKAUJUUUU8529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUkFb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AK xVW8Jr0_Cr1UM2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12xvs2x26I8E6xACxx 1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r1q6rW5McIj6I8E87Iv 67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41l42xK82IYc2 Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s02 6x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF0x vE2Ix0cI8IcVAFwI0_JFI_Gr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE 42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6x kF7I0E14v26r1j6r4UYxBIdaVFxhVjvjDU0xZFpf9x07j0dgAUUUUU= Content-Type: text/plain; charset="utf-8" For now, the related codes of is_entry_func() are useless, so they can be removed. Then the symbol kernel_entry_end is not used any more, so it can be removed too. Link: https://lore.kernel.org/lkml/kjiyla6qj3l7ezspitulrdoc5laj2e6hoecvd254= hssnpddczm@g6nkaombh6va/ Suggested-by: Josh Poimboeuf Signed-off-by: Tiezhu Yang --- arch/loongarch/kernel/head.S | 2 -- arch/loongarch/kernel/unwind_orc.c | 11 ----------- 2 files changed, 13 deletions(-) diff --git a/arch/loongarch/kernel/head.S b/arch/loongarch/kernel/head.S index ce7f6c04f4ab..7f288e89573b 100644 --- a/arch/loongarch/kernel/head.S +++ b/arch/loongarch/kernel/head.S @@ -144,5 +144,3 @@ SYM_CODE_START(smpboot_entry) SYM_CODE_END(smpboot_entry) =20 #endif /* CONFIG_SMP */ - -SYM_ENTRY(kernel_entry_end, SYM_L_GLOBAL, SYM_A_NONE) diff --git a/arch/loongarch/kernel/unwind_orc.c b/arch/loongarch/kernel/unw= ind_orc.c index 0d5fa64a2225..710f82d73797 100644 --- a/arch/loongarch/kernel/unwind_orc.c +++ b/arch/loongarch/kernel/unwind_orc.c @@ -348,14 +348,6 @@ void unwind_start(struct unwind_state *state, struct t= ask_struct *task, } EXPORT_SYMBOL_GPL(unwind_start); =20 -static bool is_entry_func(unsigned long addr) -{ - extern u32 kernel_entry; - extern u32 kernel_entry_end; - - return addr >=3D (unsigned long)&kernel_entry && addr < (unsigned long)&k= ernel_entry_end; -} - static inline unsigned long bt_address(unsigned long ra) { extern unsigned long eentry; @@ -402,9 +394,6 @@ bool unwind_next_frame(struct unwind_state *state) /* Don't let modules unload while we're reading their ORC data. */ guard(rcu)(); =20 - if (is_entry_func(state->pc)) - goto end; - orc =3D orc_find(state->pc); if (!orc) { /* --=20 2.42.0