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 729D1280CFC for ; Fri, 20 Mar 2026 08:51:05 +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=1773996665; cv=none; b=takzN1ndcCz3Mjj8D7STGdQTRGlcgda2YBhHVzuduWF+M/CJWfO3jCgaymLlDUICFX4pV2g25xQuAlftTUh2aUSFpc3HuVt6fKSBXxhUj4pLmIVmhsPtEn+vI4C3KPDIaj2fDT9cJ66eXdYDuFIw/1tqnVq67tpvozfCyO4rHi8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773996665; c=relaxed/simple; bh=/GS73ltj9Y35NSr/JbISTIG/FyQybHY080PmJmseez0=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=qtE8OgOmrBppKUxkZYWoKrIExCUzDVbbXJLw1UkddnEC3YrBxNWAg+tVwd7resea0bv1ocQ1u9fEN3EW0S8EFugBa2t/d7Ja+/14qbJwGtu8yhNyjohqwaNJQhiNDEFGstzmBo7X8YalN+QX1a8AIriMTaI8uzXXRJXE4B/vDIk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=1pOIuejr; 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="1pOIuejr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 99984C4CEF7; Fri, 20 Mar 2026 08:51:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1773996665; bh=/GS73ltj9Y35NSr/JbISTIG/FyQybHY080PmJmseez0=; h=Subject:To:Cc:From:Date:From; b=1pOIuejrOwj05BjsUDARC0SvfmlnpNaopzJuIGLZvkK8B0ESojVWFKQfpSuDAETzD QLS1FDd9/CTtoMEhPisw5HdKlb4I68u1gRVst5l2sVfHGwGl0LDf/frBZiBvLJ+NWN JofIlFWUk8mxMvCMvUJHQm9b1orsfwtK3EkanoAc= Subject: FAILED: patch "[PATCH] LoongArch: Check return values for set_memory_{rw,rox}" failed to apply to 6.19-stable tree To: yangtiezhu@loongson.cn,chenhuacai@loongson.cn Cc: From: Date: Fri, 20 Mar 2026 09:51:01 +0100 Message-ID: <2026032001-sizable-drivable-f1c8@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 6.19-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-6.19.y git checkout FETCH_HEAD git cherry-pick -x 431ce839dad66d0d56fb604785452c6a57409f35 # git commit -s git send-email --to '' --in-reply-to '2026032001-sizable-drivable-f1c8@gregkh' --subject-prefix 'PATCH 6.19.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; }