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/fpga/Makefile | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 drivers/fpga/Makefile (limited to 'drivers/fpga/Makefile') diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile new file mode 100644 index 000000000..6f5798b27 --- /dev/null +++ b/drivers/fpga/Makefile @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the fpga framework and fpga manager drivers. +# + +# Core FPGA Manager Framework +obj-$(CONFIG_FPGA) += fpga-mgr.o + +# FPGA Manager Drivers +obj-$(CONFIG_FPGA_MGR_ALTERA_CVP) += altera-cvp.o +obj-$(CONFIG_FPGA_MGR_ALTERA_PS_SPI) += altera-ps-spi.o +obj-$(CONFIG_FPGA_MGR_ICE40_SPI) += ice40-spi.o +obj-$(CONFIG_FPGA_MGR_MACHXO2_SPI) += machxo2-spi.o +obj-$(CONFIG_FPGA_MGR_SOCFPGA) += socfpga.o +obj-$(CONFIG_FPGA_MGR_SOCFPGA_A10) += socfpga-a10.o +obj-$(CONFIG_FPGA_MGR_STRATIX10_SOC) += stratix10-soc.o +obj-$(CONFIG_FPGA_MGR_TS73XX) += ts73xx-fpga.o +obj-$(CONFIG_FPGA_MGR_XILINX_CORE) += xilinx-core.o +obj-$(CONFIG_FPGA_MGR_XILINX_SELECTMAP) += xilinx-selectmap.o +obj-$(CONFIG_FPGA_MGR_XILINX_SPI) += xilinx-spi.o +obj-$(CONFIG_FPGA_MGR_ZYNQ_FPGA) += zynq-fpga.o +obj-$(CONFIG_FPGA_MGR_ZYNQMP_FPGA) += zynqmp-fpga.o +obj-$(CONFIG_FPGA_MGR_VERSAL_FPGA) += versal-fpga.o +obj-$(CONFIG_FPGA_MGR_MICROCHIP_SPI) += microchip-spi.o +obj-$(CONFIG_FPGA_MGR_LATTICE_SYSCONFIG) += lattice-sysconfig.o +obj-$(CONFIG_FPGA_MGR_LATTICE_SYSCONFIG_SPI) += lattice-sysconfig-spi.o +obj-$(CONFIG_ALTERA_PR_IP_CORE) += altera-pr-ip-core.o +obj-$(CONFIG_ALTERA_PR_IP_CORE_PLAT) += altera-pr-ip-core-plat.o +obj-$(CONFIG_FPGA_MGR_EFINIX_SPI) += efinix-spi.o + +# FPGA Secure Update Drivers +obj-$(CONFIG_FPGA_M10_BMC_SEC_UPDATE) += intel-m10-bmc-sec-update.o + +# FPGA Bridge Drivers +obj-$(CONFIG_FPGA_BRIDGE) += fpga-bridge.o +obj-$(CONFIG_SOCFPGA_FPGA_BRIDGE) += altera-hps2fpga.o altera-fpga2sdram.o +obj-$(CONFIG_ALTERA_FREEZE_BRIDGE) += altera-freeze-bridge.o +obj-$(CONFIG_XILINX_PR_DECOUPLER) += xilinx-pr-decoupler.o + +# High Level Interfaces +obj-$(CONFIG_FPGA_REGION) += fpga-region.o +obj-$(CONFIG_OF_FPGA_REGION) += of-fpga-region.o + +# FPGA Device Feature List Support +obj-$(CONFIG_FPGA_DFL) += dfl.o +obj-$(CONFIG_FPGA_DFL_FME) += dfl-fme.o +obj-$(CONFIG_FPGA_DFL_FME_MGR) += dfl-fme-mgr.o +obj-$(CONFIG_FPGA_DFL_FME_BRIDGE) += dfl-fme-br.o +obj-$(CONFIG_FPGA_DFL_FME_REGION) += dfl-fme-region.o +obj-$(CONFIG_FPGA_DFL_AFU) += dfl-afu.o + +dfl-fme-objs := dfl-fme-main.o dfl-fme-pr.o dfl-fme-error.o +dfl-fme-objs += dfl-fme-perf.o +dfl-afu-objs := dfl-afu-main.o dfl-afu-region.o dfl-afu-dma-region.o +dfl-afu-objs += dfl-afu-error.o + +obj-$(CONFIG_FPGA_DFL_NIOS_INTEL_PAC_N3000) += dfl-n3000-nios.o + +# Drivers for FPGAs which implement DFL +obj-$(CONFIG_FPGA_DFL_PCI) += dfl-pci.o + +# KUnit tests +obj-$(CONFIG_FPGA_KUNIT_TESTS) += tests/ -- cgit v1.3.1