The patch below does not apply to the 4.19-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 stable@vger.kernel.org.

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-4.19.y git checkout FETCH_HEAD git cherry-pick -x 7e6689b34a815bd379dfdbe9855d36f395ef056c # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2023072157-acclaim-backlog-a3d3@gregkh' --subject-prefix 'PATCH 4.19.y' HEAD^..

Possible dependencies:

7e6689b34a81 ("PCI: rockchip: Set address alignment for endpoint mode") 146221768c74 ("PCI: rockchip: Populate ->get_features() dw_pcie_ep_ops")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 7e6689b34a815bd379dfdbe9855d36f395ef056c Mon Sep 17 00:00:00 2001 From: Damien Le Moal dlemoal@kernel.org Date: Tue, 18 Apr 2023 09:46:58 +0200 Subject: [PATCH] PCI: rockchip: Set address alignment for endpoint mode

The address translation unit of the rockchip EP controller does not use the lower 8 bits of a PCIe-space address to map local memory. Thus we must set the align feature field to 256 to let the user know about this constraint.

Link: https://lore.kernel.org/r/20230418074700.1083505-12-rick.wertenbroek@gmail.c... Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller") Signed-off-by: Damien Le Moal dlemoal@kernel.org Signed-off-by: Rick Wertenbroek rick.wertenbroek@gmail.com Signed-off-by: Lorenzo Pieralisi lpieralisi@kernel.org Cc: stable@vger.kernel.org

diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c index edfced311a9f..0af0e965fb57 100644 --- a/drivers/pci/controller/pcie-rockchip-ep.c +++ b/drivers/pci/controller/pcie-rockchip-ep.c @@ -442,6 +442,7 @@ static const struct pci_epc_features rockchip_pcie_epc_features = { .linkup_notifier = false, .msi_capable = true, .msix_capable = false, + .align = 256, };

static const struct pci_epc_features*