This is a note to let you know that I've just added the patch titled PCI: dwc: Fix n_fts[] array overrun to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: pci-dwc-fix-n_fts-array-overrun.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 2e368b23bfafa00dc76d9b46b840cf588540ab8e Author: Vidya Sagar <vidyas@xxxxxxxxxx> Date: Mon Sep 26 16:49:23 2022 +0530 PCI: dwc: Fix n_fts[] array overrun [ Upstream commit 66110361281b2f7da0c8bd51eaf1f152f4236035 ] commit aeaa0bfe89654 ("PCI: dwc: Move N_FTS setup to common setup") incorrectly uses pci->link_gen in deriving the index to the n_fts[] array also introducing the issue of accessing beyond the boundaries of array for greater than Gen-2 speeds. This change fixes that issue. Link: https://lore.kernel.org/r/20220926111923.22487-1-vidyas@xxxxxxxxxx Fixes: aeaa0bfe8965 ("PCI: dwc: Move N_FTS setup to common setup") Signed-off-by: Vidya Sagar <vidyas@xxxxxxxxxx> Signed-off-by: Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx> Reviewed-by: Rob Herring <robh@xxxxxxxxxx> Acked-by: Jingoo Han <jingoohan1@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c index c6725c519a47..9e4d96e5a3f5 100644 --- a/drivers/pci/controller/dwc/pcie-designware.c +++ b/drivers/pci/controller/dwc/pcie-designware.c @@ -641,7 +641,7 @@ void dw_pcie_setup(struct dw_pcie *pci) if (pci->n_fts[1]) { val = dw_pcie_readl_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL); val &= ~PORT_LOGIC_N_FTS_MASK; - val |= pci->n_fts[pci->link_gen - 1]; + val |= pci->n_fts[1]; dw_pcie_writel_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL, val); }