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/smc/Kconfig | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 net/smc/Kconfig (limited to 'net/smc/Kconfig') diff --git a/net/smc/Kconfig b/net/smc/Kconfig new file mode 100644 index 000000000..277ef504b --- /dev/null +++ b/net/smc/Kconfig @@ -0,0 +1,31 @@ +# SPDX-License-Identifier: GPL-2.0-only +config SMC + tristate "SMC socket protocol family" + depends on INET && INFINIBAND && DIBS + help + SMC-R provides a "sockets over RDMA" solution making use of + RDMA over Converged Ethernet (RoCE) technology to upgrade + AF_INET TCP connections transparently. + The Linux implementation of the SMC-R solution is designed as + a separate socket family SMC. + + Select this option if you want to run SMC socket applications + +config SMC_DIAG + tristate "SMC: socket monitoring interface" + depends on SMC + help + Support for SMC socket monitoring interface used by tools such as + smcss. + + if unsure, say Y. + +config SMC_HS_CTRL_BPF + bool "Generic eBPF hook for SMC handshake flow" + depends on SMC && BPF_JIT && BPF_SYSCALL + default y + help + SMC_HS_CTRL_BPF enables support to register generic eBPF hook for SMC + handshake flow, which offer much greater flexibility in modifying the behavior + of the SMC protocol stack compared to a complete kernel-based approach. Select + this option if you want filtring the handshake process via eBPF programs. -- cgit v1.3.1