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 8B3DC231C9D for ; Tue, 10 Dec 2024 09:14:37 +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=1733822077; cv=none; b=SN3Jd74292POi7bJhTUxYXqQi1CtIlAQ6at72VOev3FDgTSjQOxVzAWIYltgvXUuo7DDwHFymTVYO6Cirmfyaup4ROG3OaJ0QL61vd9fyiPGCZwmHTjGP7FXXws9RPqTo/SYoR/nD+Cklf4Q9ECLJUszH3+F9XRT7QLkMIlpzms= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733822077; c=relaxed/simple; bh=UZ+Bvc6lMq6lLNidLG2oLJFqMajOA1mVUpN0syyzD2U=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=buNeObADZVGKuYA27uPR2A9zueQ5esvZxBsOK8xwQdCZbI00LTP0uosXXqbibfYzzMM/1httFFf2o9PX+Lb1hWEAwPmcPyBun5HgorJoyZufqhHgKxe+nnvJhfe0lGFb6kjUJaSnVP3bFBRKjYX2H/+PLVx5rd31wbzPu9rR8Xw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=fEbD7DoH; 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="fEbD7DoH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BE291C4CED6; Tue, 10 Dec 2024 09:14:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1733822077; bh=UZ+Bvc6lMq6lLNidLG2oLJFqMajOA1mVUpN0syyzD2U=; h=Subject:To:Cc:From:Date:From; b=fEbD7DoH2PFeO0RaUeuIK071RihFVeQvQp4qmelzo0CyfRPzx1bBOyfR1QGwRdb8F jAdDLdN/bwJVqRsgLoEemoJQu5IdQryTaZuIC2svvGBxZxNb7z3kXdLsxMDJDVOq/S 80IORhnXUvZmI7T6GqaVRoQ2fdVcnqFr+cnPYN5Y= Subject: FAILED: patch "[PATCH] scsi: ufs: pltfrm: Drop PM runtime reference count after" failed to apply to 5.15-stable tree To: mani@kernel.org,beanhuo@micron.com,bvanassche@acm.org,manivannan.sadhasivam@linaro.org,martin.petersen@oracle.com,peter.wang@mediatek.com Cc: From: Date: Tue, 10 Dec 2024 10:13:56 +0100 Message-ID: <2024121055-pauper-peddling-ce5d@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 5.15-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-5.15.y git checkout FETCH_HEAD git cherry-pick -x 1745dcdb7227102e16248a324c600b9121c8f6df # git commit -s git send-email --to '' --in-reply-to '2024121055-pauper-peddling-ce5d@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 1745dcdb7227102e16248a324c600b9121c8f6df Mon Sep 17 00:00:00 2001 From: Manivannan Sadhasivam Date: Mon, 11 Nov 2024 23:18:33 +0530 Subject: [PATCH] scsi: ufs: pltfrm: Drop PM runtime reference count after ufshcd_remove() During the remove stage of glue drivers, some of them are incrementing the reference count using pm_runtime_get_sync(), before removing the ufshcd using ufshcd_remove(). But they are not dropping that reference count after ufshcd_remove() to balance the refcount. So drop the reference count by calling pm_runtime_put_noidle() after ufshcd_remove(). Since the behavior is applicable to all glue drivers, move the PM handling to ufshcd_pltfrm_remove(). Cc: stable@vger.kernel.org # 3.12 Fixes: 62694735ca95 ("[SCSI] ufs: Add runtime PM support for UFS host controller driver") Signed-off-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/20241111-ufs_bug_fix-v1-4-45ad8b62f02e@linaro.org Reviewed-by: Peter Wang Reviewed-by: Bean Huo Reviewed-by: Bart Van Assche Signed-off-by: Martin K. Petersen diff --git a/drivers/ufs/host/tc-dwc-g210-pltfrm.c b/drivers/ufs/host/tc-dwc-g210-pltfrm.c index 113e0ef7b2cf..c6f8565ede21 100644 --- a/drivers/ufs/host/tc-dwc-g210-pltfrm.c +++ b/drivers/ufs/host/tc-dwc-g210-pltfrm.c @@ -76,7 +76,6 @@ static int tc_dwc_g210_pltfm_probe(struct platform_device *pdev) */ static void tc_dwc_g210_pltfm_remove(struct platform_device *pdev) { - pm_runtime_get_sync(&(pdev)->dev); ufshcd_pltfrm_remove(pdev); } diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index b20f6526777a..9d4db13e142d 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -1992,7 +1992,6 @@ static void exynos_ufs_remove(struct platform_device *pdev) struct ufs_hba *hba = platform_get_drvdata(pdev); struct exynos_ufs *ufs = ufshcd_get_variant(hba); - pm_runtime_get_sync(&(pdev)->dev); ufshcd_pltfrm_remove(pdev); phy_power_off(ufs->phy); diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index b444146419de..ffe4d03a0f38 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -1879,7 +1879,6 @@ static int ufs_mtk_probe(struct platform_device *pdev) */ static void ufs_mtk_remove(struct platform_device *pdev) { - pm_runtime_get_sync(&(pdev)->dev); ufshcd_pltfrm_remove(pdev); } diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 3762337d7576..73b4fec8221a 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1863,7 +1863,6 @@ static void ufs_qcom_remove(struct platform_device *pdev) struct ufs_hba *hba = platform_get_drvdata(pdev); struct ufs_qcom_host *host = ufshcd_get_variant(hba); - pm_runtime_get_sync(&(pdev)->dev); ufshcd_pltfrm_remove(pdev); if (host->esi_enabled) platform_device_msi_free_irqs_all(hba->dev); diff --git a/drivers/ufs/host/ufs-sprd.c b/drivers/ufs/host/ufs-sprd.c index e455890cf7d4..d220978c2d8c 100644 --- a/drivers/ufs/host/ufs-sprd.c +++ b/drivers/ufs/host/ufs-sprd.c @@ -427,7 +427,6 @@ static int ufs_sprd_probe(struct platform_device *pdev) static void ufs_sprd_remove(struct platform_device *pdev) { - pm_runtime_get_sync(&(pdev)->dev); ufshcd_pltfrm_remove(pdev); } diff --git a/drivers/ufs/host/ufshcd-pltfrm.c b/drivers/ufs/host/ufshcd-pltfrm.c index bad5b1303eb6..b8dadd0a2f4c 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.c +++ b/drivers/ufs/host/ufshcd-pltfrm.c @@ -532,8 +532,10 @@ void ufshcd_pltfrm_remove(struct platform_device *pdev) { struct ufs_hba *hba = platform_get_drvdata(pdev); + pm_runtime_get_sync(&pdev->dev); ufshcd_remove(hba); pm_runtime_disable(&pdev->dev); + pm_runtime_put_noidle(&pdev->dev); } EXPORT_SYMBOL_GPL(ufshcd_pltfrm_remove);