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 --- drivers/net/pcs/Kconfig | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 drivers/net/pcs/Kconfig (limited to 'drivers/net/pcs/Kconfig') diff --git a/drivers/net/pcs/Kconfig b/drivers/net/pcs/Kconfig new file mode 100644 index 000000000..e417fd66f --- /dev/null +++ b/drivers/net/pcs/Kconfig @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# PCS Layer Configuration +# + +menu "PCS device drivers" + +config PCS_XPCS + tristate "Synopsys DesignWare Ethernet XPCS" + select PHYLINK + help + This module provides a driver and helper functions for Synopsys + DesignWare XPCS controllers. + +config PCS_LYNX + tristate + help + This module provides helpers to phylink for managing the Lynx PCS + which is part of the Layerscape and QorIQ Ethernet SERDES. + +config PCS_MTK_LYNXI + tristate + select PHY_COMMON_PROPS + select REGMAP + help + This module provides helpers to phylink for managing the LynxI PCS + which is part of MediaTek's SoC and Ethernet switch ICs. + +config PCS_RZN1_MIIC + tristate "Renesas RZ/N1, RZ/N2H, RZ/T2H MII converter" + depends on OF + depends on ARCH_RENESAS || COMPILE_TEST + help + This module provides a driver for the MII converter available on + Renesas RZ/N1, RZ/N2H, and RZ/T2H SoCs. This PCS converts MII to + RMII/RGMII, or can be set in pass-through mode for MII. + +endmenu -- cgit v1.3.1