From nobody Sun Feb 8 05:23:43 2026 Received: from mail-pl1-f176.google.com (mail-pl1-f176.google.com [209.85.214.176]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C6F101BC4E for ; Thu, 4 Jul 2024 06:52:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.176 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720075944; cv=none; b=tSeGikvqAkdnyi9f+kvzmwrzr7Ri/DlRndcTxtvnEb2FRzjnBX6vL1NdkpPNM4PyXNL0whITLd9ewgaWBSVmUudXNml+9yX5QCN4xHy0rONIRwmmfxIC/RYqtx7EglSY5nCZSjZq8q3C71rnkOUubw7vqncAn5b1sY2pWbD5oGo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720075944; c=relaxed/simple; bh=HJDaGmoijA8IivDlw4ITokq/M9xuWc6aBVPFDUB0iYg=; h=From:To:Cc:Subject:Date:Message-Id; b=uGkEGRPkvfFymF0RQzMMuq/bM+dQoni7KdsfotzOiCJQ02UV/U9hHadcYILfGRuoA3XlL6H4dRA0y4+1ANeNAt5mgiNjMj2rLfUlvaDGFVvDlTZNgw8MxwIPXWSdpVFT9l5Z+2ohYr425uEIGvB8FlPsPGESnyr94g0S9jd9iHM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=LUcVL8qX; arc=none smtp.client-ip=209.85.214.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="LUcVL8qX" Received: by mail-pl1-f176.google.com with SMTP id d9443c01a7336-1fa244db0b2so1998895ad.3 for ; Wed, 03 Jul 2024 23:52:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1720075942; x=1720680742; darn=vger.kernel.org; h=message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=qb7qEMakmFij5zhdLHflF693Oy2d+rmi2NgGIv7uThI=; b=LUcVL8qXzpTX+kcwSueVLz+Vc22VkxONUFrQo+qpSKw1+wXdksjaNdg7RasC+XNbPn QOuW8fc8k3/p6ZSQSvVqnt3JKLRZJ6bzB+AnNxzrsX7g0y6yPYshCb+MwQPIPey1saDP C7y9Mj/te7VUHvLjT6EBtyo08qXyT0Dzbq31S8i828Zyx3y4nvWnPowfOql7Zx6O72y/ +mNfCEfG6KGvBUMMn8+ibyYOfoglUfNVA50J3twrOA9K+VOuRHnYkDXShP/v3WwaPR98 PJBOA0rkNKC9VdqnnS41hwynjtkKPXlwIVyCpKXakaqK8mXHNuU5lsRkTbT6gXvuSrdc uJ8w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720075942; x=1720680742; h=message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=qb7qEMakmFij5zhdLHflF693Oy2d+rmi2NgGIv7uThI=; b=ASKKlZL3tiugydjtK7MP9zio4oaZgsPX/d+yGg43iTCLyLRTb3M9ZW8a7I4MM2A8Mr thDq3WEC+W2bP895qz0SOemLiJ8u6j0NpbTYVldOARBUWc4i1DKVBrgvBtWoeDjIrczR AOm/Jdn+A3p2B1Dymwe4j+56WkEAOfHd9dyRvfrRyzycq8ux2yLDN7hPCIN2mL962QA+ ocymqnDxdKP3JqUKdu9SIKmDF5wPLFgvH/EyGTiZdCGy4rEI0A6FrHad6XLSeGfg3/FY g1PAhFjrKSNlmUx4xq9c1FZd4oF8/cW3iy4MtInPFDX6Ca16Ox0Oz0wjr/994fFgZuTd RYUw== X-Gm-Message-State: AOJu0Yy3eQLe5u8yUU+Gsq+3q7u+MPc+/QShxFLzNKXsvWQQQ9bop+dv k4Zz8IpEPHvtkFlb+k5PYDCay11Ki0piDh0PEH4vXRU+ADHpXOrB X-Google-Smtp-Source: AGHT+IFGhuYncYUd5lCY/Rs8aSDcoWkdWxNKb66fdLNPpmPLF28xg8Jzo48BCnbCswA2XTGI3/LRCA== X-Received: by 2002:a17:902:f690:b0:1f7:1b42:431d with SMTP id d9443c01a7336-1fb33e7a014mr6436945ad.30.1720075941786; Wed, 03 Jul 2024 23:52:21 -0700 (PDT) Received: from MSCND1355B05.fareast.nevint.com ([117.128.58.94]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1fb1cad5b4dsm22615155ad.105.2024.07.03.23.52.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Jul 2024 23:52:21 -0700 (PDT) From: Zqiang To: paulmck@kernel.org, imran.f.khan@oracle.com, tglx@linutronix.de Cc: linux-kernel@vger.kernel.org Subject: [PATCH] smp: Fix missed destroy_work_on_stack() calls in smp_call_on_cpu() Date: Thu, 4 Jul 2024 14:52:13 +0800 Message-Id: <20240704065213.13559-1-qiang.zhang1211@gmail.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" For builts with CONFIG_DEBUG_OBJECTS_WORK=3Dy kernels, the sscs.work defined using INIT_WORK_ONSTACK() will be initialized by debug_object_init_on_stack() for debug check in __init_work(). This commit therefore invoke destroy_work_on_stack() to free sscs.work debug objects before smp_call_on_cpu() returns. Signed-off-by: Zqiang Tested-by: Paul E. McKenney --- kernel/smp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/smp.c b/kernel/smp.c index cc13e73a887c..61f10f982341 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -1135,6 +1135,7 @@ int smp_call_on_cpu(unsigned int cpu, int (*func)(voi= d *), void *par, bool phys) =20 queue_work_on(cpu, system_wq, &sscs.work); wait_for_completion(&sscs.done); + destroy_work_on_stack(&sscs.work); =20 return sscs.ret; } --=20 2.17.1