From 27600805e62f800bacf990354632eae4e487d34c Mon Sep 17 00:00:00 2001 From: Yazen Ghannam Date: Thu, 3 Sep 2026 10:43:25 -0500 Subject: x86/amd_node: Fix PCI device reference counting in amd_smn_init() The local "root" pointer is a temporary variable used during the device search. Therefore, refcount related to the search iterators should be cleaned up after the search is complete. Use the __free() cleanup macro to ensure the refcount is decremented when the temporary pointer goes out of scope. Additionally, increment the refcount when caching a root pointer. This ensures the in-use refcount is separate from the temporary search refcounting. Finally, drop the redundant "root = NULL" before the second search loop. The pci_get_class() iterator always decrements the refcount of its "from" argument, so the first loop can only fall through with "root" already NULL. Fixes: 0a4b61d9c2e4 ("x86/amd_node: Fix AMD root device caching") Closes: https://sashiko.dev/#/patchset/20260806160159.230453-1-jason.andryuk%40amd.com Reported-by: Sashiko Assisted-by: LLM Signed-off-by: Yazen Ghannam Signed-off-by: Borislav Petkov (AMD) Reviewed-by: Mario Limonciello (AMD) Cc: Link: https://patch.msgid.link/20260903154325.74343-1-yazen.ghannam@amd.com --- net/mpls/Kconfig | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 net/mpls/Kconfig (limited to 'net/mpls/Kconfig') diff --git a/net/mpls/Kconfig b/net/mpls/Kconfig new file mode 100644 index 000000000..829fb1788 --- /dev/null +++ b/net/mpls/Kconfig @@ -0,0 +1,39 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# MPLS configuration +# + +menuconfig MPLS + bool "MultiProtocol Label Switching" + default n + help + MultiProtocol Label Switching routes packets through logical + circuits. Originally conceived as a way of routing packets at + hardware speeds (before hardware was capable of routing ipv4 packets), + MPLS remains a simple way of making tunnels. + + If you have not heard of MPLS you probably want to say N here. + +if MPLS + +config NET_MPLS_GSO + tristate "MPLS: GSO support" + help + This is helper module to allow segmentation of non-MPLS GSO packets + that have had MPLS stack entries pushed onto them and thus + become MPLS GSO packets. + +config MPLS_ROUTING + tristate "MPLS: routing support" + depends on NET_IP_TUNNEL || NET_IP_TUNNEL=n + depends on SYSCTL + help + Add support for forwarding of mpls packets. + +config MPLS_IPTUNNEL + tristate "MPLS: IP over MPLS tunnel support" + depends on LWTUNNEL && MPLS_ROUTING + help + mpls ip tunnel support. + +endif # MPLS -- cgit v1.3.1