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 --- lib/raid/raid6/Makefile | 128 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 128 insertions(+) create mode 100644 lib/raid/raid6/Makefile (limited to 'lib/raid/raid6/Makefile') diff --git a/lib/raid/raid6/Makefile b/lib/raid/raid6/Makefile new file mode 100644 index 000000000..5cdb7223d --- /dev/null +++ b/lib/raid/raid6/Makefile @@ -0,0 +1,128 @@ +# SPDX-License-Identifier: GPL-2.0 + +CONTEXT_ANALYSIS := y + +ccflags-y += -I $(src) + +ifeq ($(CONFIG_RAID6_PQ_ARCH),y) +CFLAGS_algos.o += -I$(src)/$(SRCARCH) +endif + +obj-$(CONFIG_RAID6_PQ) += raid6_pq.o tests/ + +raid6_pq-y += algos.o tables.o + +# generic integer generation and recovery implementation +raid6_pq-y += int1.o int2.o int4.o int8.o +raid6_pq-y += recov.o + +# architecture-specific generation and recovery implementations: +raid6_pq-$(CONFIG_KERNEL_MODE_NEON) += arm/neon.o \ + arm/neon1.o \ + arm/neon2.o \ + arm/neon4.o \ + arm/neon8.o \ + arm/recov_neon.o \ + arm/recov_neon_inner.o +raid6_pq-$(CONFIG_LOONGARCH) += loongarch/loongarch_simd.o \ + loongarch/recov_loongarch_simd.o +raid6_pq-$(CONFIG_ALTIVEC) += powerpc/altivec1.o \ + powerpc/altivec2.o \ + powerpc/altivec4.o \ + powerpc/altivec8.o \ + powerpc/vpermxor1.o \ + powerpc/vpermxor2.o \ + powerpc/vpermxor4.o \ + powerpc/vpermxor8.o +raid6_pq-$(CONFIG_RISCV_ISA_V) += riscv/rvv.o \ + riscv/recov_rvv.o +raid6_pq-$(CONFIG_S390) += s390/s390vx8.o \ + s390/recov_s390xc.o +ifeq ($(CONFIG_X86),y) +raid6_pq-$(CONFIG_X86_32) += x86/mmx.o \ + x86/sse1.o +endif +raid6_pq-$(CONFIG_X86) += x86/sse2.o \ + x86/avx2.o \ + x86/avx512.o \ + x86/recov_ssse3.o \ + x86/recov_avx2.o \ + x86/recov_avx512.o + +hostprogs += mktables + +CFLAGS_arm/neon1.o += $(CC_FLAGS_FPU) +CFLAGS_arm/neon2.o += $(CC_FLAGS_FPU) +CFLAGS_arm/neon4.o += $(CC_FLAGS_FPU) +CFLAGS_arm/neon8.o += $(CC_FLAGS_FPU) +CFLAGS_arm/recov_neon_inner.o += $(CC_FLAGS_FPU) +CFLAGS_REMOVE_arm/neon1.o += $(CC_FLAGS_NO_FPU) +CFLAGS_REMOVE_arm/neon2.o += $(CC_FLAGS_NO_FPU) +CFLAGS_REMOVE_arm/neon4.o += $(CC_FLAGS_NO_FPU) +CFLAGS_REMOVE_arm/neon8.o += $(CC_FLAGS_NO_FPU) +CFLAGS_REMOVE_arm/recov_neon_inner.o += $(CC_FLAGS_NO_FPU) + +ifeq ($(CONFIG_ALTIVEC),y) +altivec_flags := -maltivec $(call cc-option,-mabi=altivec) +# Enable +altivec_flags += -isystem $(shell $(CC) -print-file-name=include) + +CFLAGS_powerpc/altivec1.o += $(altivec_flags) +CFLAGS_powerpc/altivec2.o += $(altivec_flags) +CFLAGS_powerpc/altivec4.o += $(altivec_flags) +CFLAGS_powerpc/altivec8.o += $(altivec_flags) +CFLAGS_powerpc/vpermxor1.o += $(altivec_flags) +CFLAGS_powerpc/vpermxor2.o += $(altivec_flags) +CFLAGS_powerpc/vpermxor4.o += $(altivec_flags) +CFLAGS_powerpc/vpermxor8.o += $(altivec_flags) + +ifdef CONFIG_CC_IS_CLANG +# clang ppc port does not yet support -maltivec when -msoft-float is +# enabled. A future release of clang will resolve this +# https://llvm.org/pr31177 +CFLAGS_REMOVE_powerpc/altivec1.o += -msoft-float +CFLAGS_REMOVE_powerpc/altivec2.o += -msoft-float +CFLAGS_REMOVE_powerpc/altivec4.o += -msoft-float +CFLAGS_REMOVE_powerpc/altivec8.o += -msoft-float +CFLAGS_REMOVE_powerpc/vpermxor1.o += -msoft-float +CFLAGS_REMOVE_powerpc/vpermxor2.o += -msoft-float +CFLAGS_REMOVE_powerpc/vpermxor4.o += -msoft-float +CFLAGS_REMOVE_powerpc/vpermxor8.o += -msoft-float +endif # CONFIG_CC_IS_CLANG +endif # CONFIG_ALTIVEC + +quiet_cmd_mktable = TABLE $@ + cmd_mktable = $(obj)/mktables > $@ + +targets += tables.c +$(obj)/tables.c: $(obj)/mktables FORCE + $(call if_changed,mktable) + +quiet_cmd_unroll = UNROLL $@ + cmd_unroll = $(AWK) -v N=$* -f $(src)/unroll.awk < $< > $@ + +targets += int1.c int2.c int4.c int8.c +$(obj)/int%.c: $(src)/int.uc $(src)/unroll.awk FORCE + $(call if_changed,unroll) + +targets += arm/neon1.c arm/neon2.c arm/neon4.c arm/neon8.c +$(obj)/arm/neon%.c: $(src)/arm/neon.uc $(src)/unroll.awk FORCE + $(call if_changed,unroll) + +targets += powerpc/altivec1.c \ + powerpc/altivec2.c \ + powerpc/altivec4.c \ + powerpc/altivec8.c +$(obj)/powerpc/altivec%.c: $(src)/powerpc/altivec.uc $(src)/unroll.awk FORCE + $(call if_changed,unroll) + +targets += powerpc/vpermxor1.c \ + powerpc/vpermxor2.c \ + powerpc/vpermxor4.c \ + powerpc/vpermxor8.c +$(obj)/powerpc/vpermxor%.c: $(src)/powerpc/vpermxor.uc $(src)/unroll.awk FORCE + $(call if_changed,unroll) + +targets += s390/s390vx8.c +$(obj)/s390/s390vx%.c: $(src)/s390/s390vx.uc $(src)/unroll.awk FORCE + $(call if_changed,unroll) -- cgit v1.3.1