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 05C1B17C9E for ; Sun, 26 Oct 2025 03:31:21 +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=1761449485; cv=none; b=qOKMu+k/gzilYg/Erd0mtkUOp0evfYlpaA+JiORjHKfIicH9IC+OO2TSTaH922Z1QUpMiKxGTpQDJvny0gAf0eCPrF8MAGwPZQDdxTcqCPc8QQLHJ5z44/9G33pYC+F1889pq8n1RLgr2Z1wG2LBMEW5Ks1kRktqmftL3Y+h7VI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761449485; c=relaxed/simple; bh=eYCciPjO1aS8sWJ0V5x97hiAcsCfjPqZTFRozflIuwc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=pgm/NinxpwvjpQEv86PIsteNqKFk3TRCuYF5J9fPZNv2AC0vNPmfyzRMfUwrlierWyVDGiziaN1PFma3KhR6bitUzGWHVd92JejKG7Q+NJk/VzDNEyLM7jF7+v3lppbtnJhmJcxH+mSOnVazTqtrld7zDXz3LMUhYSOeZffFTcM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=V0FKXXi3; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="V0FKXXi3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BAA4CC4CEE7; Sun, 26 Oct 2025 03:31:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761449481; bh=eYCciPjO1aS8sWJ0V5x97hiAcsCfjPqZTFRozflIuwc=; h=From:To:Cc:Subject:Date:From; b=V0FKXXi39WnUFT2FRJhVne9a6nYxePvk9ZbISZnW+bN0mTWm88XmbSGU2yh/HLy1i LbbgR+i8LQQbJ8qWSpCW1AwFGd3q7dBY8c7enDNOwXZvEnlPeSTs4X7MVuJr4QXP18 h2WDGqV9s6INLoVjSQg/fDrjxoDHboQ5Sbk1VcVA7Yy+sLzrhdTeNjdwyo/bT06oEv ZHbUz1s4hmXmApuxFLR0wxyFE+6PCt2ziZsgCMwRrgFPj9HozkpkbvBFFjzxoYDJR+ hYiJTaFNi6bF5NyC9YbM/ZHVx8c+qFvQEDu4KbmPC5ZSCuv5IpRC9PkSaJNIY2vpkE edJbUXhTXryHA== From: "Mario Limonciello (AMD)" To: mario.limonciello@amd.com, rafael@kernel.org, lenb@kernel.org, pavel@kernel.org, superm1@kernel.org Cc: Askar Safin , rafael.j.wysocki@intel.com, linux-pm@vger.kernel.org Subject: [PATCH] PM: hibernate: Restore GFP mask in power_down() for HIBERNATION_PLATFORM Date: Sat, 25 Oct 2025 22:31:00 -0500 Message-ID: <20251026033115.436448-1-superm1@kernel.org> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit commit 449c9c02537a1 ("PM: hibernate: Restrict GFP mask in hibernation_snapshot()") added a restrict GFP mask call that leads to mismatch when using the platform for hibernation. As part of calling hibernation_platform_enter() the mask will be restricted when calling dpm_suspend_start(). This is a similar problem as occurred with hybrid sleep that was fixed by commit 469d80a3712c6 ("PM: hibernate: Fix hybrid-sleep"). Restore GFP maks as part of power_down() in HIBERNATION_PLATFORM case to fix the mismatch. Reported-by: Askar Safin Closes: https://lore.kernel.org/linux-pm/20251025050812.421905-1-safinaskar@gmail.com/ Fixes: 449c9c02537a1 ("PM: hibernate: Restrict GFP mask in hibernation_snapshot()") Signed-off-by: Mario Limonciello (AMD) --- kernel/power/hibernate.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index 14e85ff235512..e15907f28c4cd 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -721,6 +721,7 @@ static void power_down(void) kernel_restart(NULL); break; case HIBERNATION_PLATFORM: + pm_restore_gfp_mask(); error = hibernation_platform_enter(); if (error == -EAGAIN || error == -EBUSY) { events_check_enabled = false; -- 2.43.0