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 14606320CC4 for ; Thu, 21 Aug 2025 13:07:40 +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=1755781660; cv=none; b=FiLc++i2pPp87iRn2dHDonb9Ob1EGEje+O6hUyKGI1YqOlSy/V1pwPD7aIPpqYKdnEpumjThvDF1zgMlz4lbkuDFwl2hg2LlfwCUc1j4z1vcI8WQIKEYjB+jdewTy4wWXeEJhgn0o1q6W2kofpRm9QxW5Rd8dspwgLsGDIrFXK0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755781660; c=relaxed/simple; bh=raKLXfMz7iQCvgcAJheynF7D8P/5gWFsnv7P0XSZl3k=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=W3IxpCQcbRsRvtFChTcpHm9X7YWcMf3tl0/mSwhXnChp/GSorNp1yfhZXg8GWMD8ieVoE/CmlD074fEeC/rJeCzBvOCef5by/HNlgwD/MuAKe2tkXzYpm1H4T6eIbOMNjc8SDRHHvRpquIDqer32cLoK6qqlylplt8IaqFtRANs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=vBJ1Mfgp; 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="vBJ1Mfgp" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7DC58C116D0; Thu, 21 Aug 2025 13:07:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755781659; bh=raKLXfMz7iQCvgcAJheynF7D8P/5gWFsnv7P0XSZl3k=; h=Subject:To:Cc:From:Date:From; b=vBJ1MfgppllrkFv8JMKAn5XGPEbcpctD+tfoQDs+rr13IUk08DDLXCdvJ308zYc6f ycz9fA4cOSkSuZLjgkzh/fC8NMbH+PnRTBxGhsxHrcf0MArnvLho6FafGdlhZNtED/ oX93KHNq3saAdhbGi22gKrHH1CTX+yymFeWfBdR0= Subject: FAILED: patch "[PATCH] scsi: ufs: exynos: Fix programming of HCI_UTRL_NEXUS_TYPE" failed to apply to 6.6-stable tree To: andre.draszik@linaro.org,bvanassche@acm.org,martin.petersen@oracle.com,peter.griffin@linaro.org Cc: From: Date: Thu, 21 Aug 2025 15:07:36 +0200 Message-ID: <2025082136-luridness-causing-3cc9@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=UTF-8 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.6-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-6.6.y git checkout FETCH_HEAD git cherry-pick -x 01aad16c2257ab8ff33b152b972c9f2e1af47912 # git commit -s git send-email --to '' --in-reply-to '2025082136-luridness-causing-3cc9@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 01aad16c2257ab8ff33b152b972c9f2e1af47912 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Draszik?= Date: Mon, 7 Jul 2025 18:05:27 +0100 Subject: [PATCH] scsi: ufs: exynos: Fix programming of HCI_UTRL_NEXUS_TYPE MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On Google gs101, the number of UTP transfer request slots (nutrs) is 32, and in this case the driver ends up programming the UTRL_NEXUS_TYPE incorrectly as 0. This is because the left hand side of the shift is 1, which is of type int, i.e. 31 bits wide. Shifting by more than that width results in undefined behaviour. Fix this by switching to the BIT() macro, which applies correct type casting as required. This ensures the correct value is written to UTRL_NEXUS_TYPE (0xffffffff on gs101), and it also fixes a UBSAN shift warning: UBSAN: shift-out-of-bounds in drivers/ufs/host/ufs-exynos.c:1113:21 shift exponent 32 is too large for 32-bit type 'int' For consistency, apply the same change to the nutmrs / UTMRL_NEXUS_TYPE write. Fixes: 55f4b1f73631 ("scsi: ufs: ufs-exynos: Add UFS host support for Exynos SoCs") Cc: stable@vger.kernel.org Signed-off-by: André Draszik Link: https://lore.kernel.org/r/20250707-ufs-exynos-shift-v1-1-1418e161ae40@linaro.org Reviewed-by: Bart Van Assche Reviewed-by: Peter Griffin Signed-off-by: Martin K. Petersen diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index 3e545af536e5..f0adcd9dd553 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -1110,8 +1110,8 @@ static int exynos_ufs_post_link(struct ufs_hba *hba) hci_writel(ufs, val, HCI_TXPRDT_ENTRY_SIZE); hci_writel(ufs, ilog2(DATA_UNIT_SIZE), HCI_RXPRDT_ENTRY_SIZE); - hci_writel(ufs, (1 << hba->nutrs) - 1, HCI_UTRL_NEXUS_TYPE); - hci_writel(ufs, (1 << hba->nutmrs) - 1, HCI_UTMRL_NEXUS_TYPE); + hci_writel(ufs, BIT(hba->nutrs) - 1, HCI_UTRL_NEXUS_TYPE); + hci_writel(ufs, BIT(hba->nutmrs) - 1, HCI_UTMRL_NEXUS_TYPE); hci_writel(ufs, 0xf, HCI_AXIDMA_RWDATA_BURST_LEN); if (ufs->opts & EXYNOS_UFS_OPT_SKIP_CONNECTION_ESTAB)