s390/archrandom: prevent CPACF trng invocations in interrupt context

[mirror_ubuntu-jammy-kernel.git] / Makefile

diff --git a/Makefile b/Makefile
index 91297670da8e0abc2588548e8865fe98e3c1faf2..7c626bc0916520f0d1e0e5627c525782c6b2d037 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,9 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 15
-SUBLEVEL = 0
-EXTRAVERSION = -rc6
-NAME = Opossums on Parade
+SUBLEVEL = 58
+EXTRAVERSION =
+NAME = Trick or Treat
 
 # *DOCUMENTATION*
 # To see a list of typical targets execute "make help"
@@ -480,6 +480,8 @@ LZ4         = lz4c
 XZ             = xz
 ZSTD           = zstd
 
+PAHOLE_FLAGS   = $(shell PAHOLE=$(PAHOLE) $(srctree)/scripts/pahole-flags.sh)
+
 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
                  -Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF)
 NOSTDINC_FLAGS :=
@@ -508,6 +510,9 @@ LINUXINCLUDE    := \
                -I$(objtree)/include \
                $(USERINCLUDE)
 
+# UBUNTU: Include our third party driver stuff too
+LINUXINCLUDE   += -I$(srctree)/ubuntu/include
+
 KBUILD_AFLAGS   := -D__ASSEMBLY__ -fno-PIE
 KBUILD_CFLAGS   := -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs \
                   -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \
@@ -534,6 +539,7 @@ export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
 export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
 export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
+export PAHOLE_FLAGS
 
 # Files to ignore in find ... statements
 
@@ -661,7 +667,7 @@ endif
 ifeq ($(KBUILD_EXTMOD),)
 # Objects we will link into vmlinux / subdirs we need to visit
 core-y         := init/ usr/ arch/$(SRCARCH)/
-drivers-y      := drivers/ sound/
+drivers-y      := drivers/ sound/ ubuntu/
 drivers-$(CONFIG_SAMPLES) += samples/
 drivers-$(CONFIG_NET) += net/
 drivers-y      += virt/
@@ -687,12 +693,19 @@ endif
 
 ifdef CONFIG_CC_IS_GCC
 RETPOLINE_CFLAGS       := $(call cc-option,-mindirect-branch=thunk-extern -mindirect-branch-register)
+RETPOLINE_CFLAGS       += $(call cc-option,-mindirect-branch-cs-prefix)
 RETPOLINE_VDSO_CFLAGS  := $(call cc-option,-mindirect-branch=thunk-inline -mindirect-branch-register)
 endif
 ifdef CONFIG_CC_IS_CLANG
 RETPOLINE_CFLAGS       := -mretpoline-external-thunk
 RETPOLINE_VDSO_CFLAGS  := -mretpoline
 endif
+
+ifdef CONFIG_RETHUNK
+RETHUNK_CFLAGS         := -mfunction-return=thunk-extern
+RETPOLINE_CFLAGS       += $(RETHUNK_CFLAGS)
+endif
+ 
 export RETPOLINE_CFLAGS
 export RETPOLINE_VDSO_CFLAGS
 
@@ -811,6 +824,9 @@ endif
 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
 KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable)
 
+# These result in bogus false positives
+KBUILD_CFLAGS += $(call cc-disable-warning, dangling-pointer)
+
 ifdef CONFIG_FRAME_POINTER
 KBUILD_CFLAGS  += -fno-omit-frame-pointer -fno-optimize-sibling-calls
 else
@@ -1008,6 +1024,21 @@ ifdef CONFIG_CC_IS_GCC
 KBUILD_CFLAGS += -Wno-maybe-uninitialized
 endif
 
+ifdef CONFIG_CC_IS_GCC
+# The allocators already balk at large sizes, so silence the compiler
+# warnings for bounds checks involving those possible values. While
+# -Wno-alloc-size-larger-than would normally be used here, earlier versions
+# of gcc (<9.1) weirdly don't handle the option correctly when _other_
+# warnings are produced (?!). Using -Walloc-size-larger-than=SIZE_MAX
+# doesn't work (as it is documented to), silently resolving to "0" prior to
+# version 9.1 (and producing an error more recently). Numeric values larger
+# than PTRDIFF_MAX also don't work prior to version 9.1, which are silently
+# ignored, continuing to default to PTRDIFF_MAX. So, left with no other
+# choice, we must perform a versioned check to disable this warning.
+# https://lore.kernel.org/lkml/20210824115859.187f272f@canb.auug.org.au
+KBUILD_CFLAGS += $(call cc-ifversion, -ge, 0901, -Wno-alloc-size-larger-than)
+endif
+
 # disable invalid "can't wrap" optimizations for signed / pointers
 KBUILD_CFLAGS  += -fno-strict-overflow
 
@@ -1160,7 +1191,7 @@ KBUILD_MODULES := 1
 
 autoksyms_recursive: descend modules.order
        $(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \
-         "$(MAKE) -f $(srctree)/Makefile vmlinux"
+         "$(MAKE) -f $(srctree)/Makefile autoksyms_recursive"
 endif
 
 autoksyms_h := $(if $(CONFIG_TRIM_UNUSED_KSYMS), include/generated/autoksyms.h)
@@ -1305,6 +1336,7 @@ headers: $(version_h) scripts_unifdef uapi-asm-generic archheaders archscripts
          $(error Headers not exportable for the $(SRCARCH) architecture))
        $(Q)$(MAKE) $(hdr-inst)=include/uapi
        $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi
+       $(Q)$(MAKE) $(hdr-inst)=ubuntu/include dst=include oldheaders=
 
 # Deprecated. It is no-op now.
 PHONY += headers_check