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 C9D392E2850 for ; Fri, 20 Mar 2026 08:51:29 +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=1773996689; cv=none; b=jV5UuLG2IY1fylpr/2pWYj+rYnhDEFXBdqgkXb947fxqtJaEgzpR6oBHWKP0HbZSTAurlQChBLCYueO/0mnsZ4/8qEMeN2d760A/KPuYLohSiTToo9wLLMATiY59CbWd9RD/osmSssWHCRq/9M7TOZej7lvDScr7LFPJvggCvXw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773996689; c=relaxed/simple; bh=B55k++iLa8SToS/1+ckXHfDHLs3K80O8Y2HyqGzzWiM=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=frsizfSBg+zATD9jL+PJWwri6AIxH296r/QDkylM4obNnHBvGakjSFikqPtdap5xI3YtF/6xKmMPh9wees0VExvCHmzHjFzZ5ymHELscUdAxxUTuSuc7n9gb+zDa+8RVEUT9iid9/xnfWOpu4nMw/w1rnvxuDrTVsLD5bYEB35I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=MQjrDxDm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="MQjrDxDm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 03A6FC4CEF7; Fri, 20 Mar 2026 08:51:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1773996689; bh=B55k++iLa8SToS/1+ckXHfDHLs3K80O8Y2HyqGzzWiM=; h=Subject:To:Cc:From:Date:From; b=MQjrDxDmXqBoyaNsP5G8MaQGaYIG/E5dnW8CtaVKqhRuasF8BD6zm2xwvmfRMznbe U/A2SfISDodvfM7z8FDaZCJUw2i6cAsrJPtS3DK7gQVHutMxX1QkWX8xNOS2w6IoAX 38KoSsaVXtI8fLZzCHx52NorJ9nH/Q5bsi3jkMYE= Subject: FAILED: patch "[PATCH] LoongArch: Check return values for set_memory_{rw,rox}" failed to apply to 5.10-stable tree To: yangtiezhu@loongson.cn,chenhuacai@loongson.cn Cc: From: Date: Fri, 20 Mar 2026 09:51:12 +0100 Message-ID: <2026032012-spotless-detergent-6668@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x 431ce839dad66d0d56fb604785452c6a57409f35 # git commit -s git send-email --to '' --in-reply-to '2026032012-spotless-detergent-6668@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 431ce839dad66d0d56fb604785452c6a57409f35 Mon Sep 17 00:00:00 2001 From: Tiezhu Yang Date: Mon, 16 Mar 2026 10:36:01 +0800 Subject: [PATCH] LoongArch: Check return values for set_memory_{rw,rox} set_memory_rw() and set_memory_rox() may fail, so we should check the return values and return immediately in larch_insn_text_copy(). Cc: stable@vger.kernel.org Signed-off-by: Tiezhu Yang Signed-off-by: Huacai Chen diff --git a/arch/loongarch/kernel/inst.c b/arch/loongarch/kernel/inst.c index 25fdb933119d..6c4ce6892276 100644 --- a/arch/loongarch/kernel/inst.c +++ b/arch/loongarch/kernel/inst.c @@ -258,6 +258,7 @@ static int text_copy_cb(void *data) int larch_insn_text_copy(void *dst, void *src, size_t len) { int ret = 0; + int err = 0; size_t start, end; struct insn_copy copy = { .dst = dst, @@ -275,9 +276,19 @@ int larch_insn_text_copy(void *dst, void *src, size_t len) start = round_down((size_t)dst, PAGE_SIZE); end = round_up((size_t)dst + len, PAGE_SIZE); - set_memory_rw(start, (end - start) / PAGE_SIZE); + err = set_memory_rw(start, (end - start) / PAGE_SIZE); + if (err) { + pr_info("%s: set_memory_rw() failed\n", __func__); + return err; + } + ret = stop_machine_cpuslocked(text_copy_cb, ©, cpu_online_mask); - set_memory_rox(start, (end - start) / PAGE_SIZE); + + err = set_memory_rox(start, (end - start) / PAGE_SIZE); + if (err) { + pr_info("%s: set_memory_rox() failed\n", __func__); + return err; + } return ret; }