Merge tag 'trace-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:

 - simplify the Kconfig use of FTRACE and TRACE_IRQFLAGS_SUPPORT

 - bootconfig can now start histograms

 - bootconfig supports group/all enabling

 - histograms now can put values in linear size buckets

 - execnames can be passed to synthetic events

 - introduce "event probes" that attach to other events and can retrieve
   data from pointers of fields, or record fields as different types (a
   pointer to a string as a string instead of just a hex number)

 - various fixes and clean ups

* tag 'trace-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (35 commits)
  tracing/doc: Fix table format in histogram code
  selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes
  selftests/ftrace: Add selftest for testing eprobe events on synthetic events
  selftests/ftrace: Add test case to test adding and removing of event probe
  selftests/ftrace: Fix requirement check of README file
  selftests/ftrace: Add clear_dynamic_events() to test cases
  tracing: Add a probe that attaches to trace events
  tracing/probes: Reject events which have the same name of existing one
  tracing/probes: Have process_fetch_insn() take a void * instead of pt_regs
  tracing/probe: Change traceprobe_set_print_fmt() to take a type
  tracing/probes: Use struct_size() instead of defining custom macros
  tracing/probes: Allow for dot delimiter as well as slash for system names
  tracing/probe: Have traceprobe_parse_probe_arg() take a const arg
  tracing: Have dynamic events have a ref counter
  tracing: Add DYNAMIC flag for dynamic events
  tracing: Replace deprecated CPU-hotplug functions.
  MAINTAINERS: Add an entry for os noise/latency
  tracepoint: Fix kerneldoc comments
  bootconfig/tracing/ktest: Update ktest example for boot-time tracing
  tools/bootconfig: Use per-group/all enable option in ftrace2bconf script
  ...

27 files changed, 21 insertions, 64 deletions

diff --git a/arch/Kconfig b/arch/Kconfig
index 98db63496bab..3743174da870 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -197,6 +197,9 @@ config HAVE_FUNCTION_ERROR_INJECTION
 config HAVE_NMI
 	bool
 
+config TRACE_IRQFLAGS_SUPPORT
+	bool
+
 #
 # An arch should select this if it provides all these things:
 #
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index f631a7a60979..3a5a80f302e1 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -49,9 +49,7 @@ config ARC
 	select PERF_USE_VMALLOC if ARC_CACHE_VIPT_ALIASING
 	select HAVE_ARCH_JUMP_LABEL if ISA_ARCV2 && !CPU_ENDIAN_BE32
 	select SET_FS
-
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
+	select TRACE_IRQFLAGS_SUPPORT
 
 config LOCKDEP_SUPPORT
 	def_bool y
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f1d6531b5ce5..99863022436d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -126,6 +126,7 @@ config ARM
 	select RTC_LIB
 	select SET_FS
 	select SYS_SUPPORTS_APM_EMULATION
+	select TRACE_IRQFLAGS_SUPPORT if !CPU_V7M
 	# Above selects are sorted alphabetically; please add new ones
 	# according to that.  Thanks.
 	help
@@ -189,10 +190,6 @@ config LOCKDEP_SUPPORT
 	bool
 	default y
 
-config TRACE_IRQFLAGS_SUPPORT
-	bool
-	default !CPU_V7M
-
 config ARCH_HAS_ILOG2_U32
 	bool
 
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 9dc1720a909f..077f2ec4eeb2 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -220,6 +220,7 @@ config ARM64
 	select SYSCTL_EXCEPTION_TRACE
 	select THREAD_INFO_IN_TASK
 	select HAVE_ARCH_USERFAULTFD_MINOR if USERFAULTFD
+	select TRACE_IRQFLAGS_SUPPORT
 	help
 	  ARM 64-bit (AArch64) Linux support.
 
@@ -287,9 +288,6 @@ config ILLEGAL_POINTER_VALUE
 config LOCKDEP_SUPPORT
 	def_bool y
 
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
-
 config GENERIC_BUG
 	def_bool y
 	depends on BUG
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig
index 2716f6395ba7..9d4d898df76b 100644
--- a/arch/csky/Kconfig
+++ b/arch/csky/Kconfig
@@ -82,6 +82,7 @@ config CSKY
 	select PCI_SYSCALL if PCI
 	select PCI_MSI if PCI
 	select SET_FS
+	select TRACE_IRQFLAGS_SUPPORT
 
 config LOCKDEP_SUPPORT
 	def_bool y
@@ -139,9 +140,6 @@ config STACKTRACE_SUPPORT
 config TIME_LOW_RES
 	def_bool y
 
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
-
 config CPU_TLB_SIZE
 	int
 	default "128"	if (CPU_CK610 || CPU_CK807 || CPU_CK810)
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index aab1a40eb653..15dd8f38b698 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -32,6 +32,7 @@ config HEXAGON
 	select GENERIC_CPU_DEVICES
 	select SET_FS
 	select ARCH_WANT_LD_ORPHAN_WARN
+	select TRACE_IRQFLAGS_SUPPORT
 	help
 	  Qualcomm Hexagon is a processor architecture designed for high
 	  performance and low power across a wide variety of applications.
@@ -53,9 +54,6 @@ config EARLY_PRINTK
 config MMU
 	def_bool y
 
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
-
 config GENERIC_CSUM
 	def_bool y
 
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 14a67a42fcae..59798e43cdb0 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -44,6 +44,7 @@ config MICROBLAZE
 	select SPARSE_IRQ
 	select SET_FS
 	select ZONE_DMA
+	select TRACE_IRQFLAGS_SUPPORT
 
 # Endianness selection
 choice
diff --git a/arch/microblaze/Kconfig.debug b/arch/microblaze/Kconfig.debug
index 865527ac332a..a4e40e534e6a 100644
--- a/arch/microblaze/Kconfig.debug
+++ b/arch/microblaze/Kconfig.debug
@@ -1,6 +1 @@
 # SPDX-License-Identifier: GPL-2.0-only
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/kconfig-language.rst.
-
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 9b8ff6c2c1e3..771ca53af06d 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -98,6 +98,7 @@ config MIPS
 	select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
 	select RTC_LIB
 	select SYSCTL_EXCEPTION_TRACE
+	select TRACE_IRQFLAGS_SUPPORT
 	select VIRT_TO_BUS
 	select ARCH_HAS_ELFCORE_COMPAT
 
diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug
index 43dbf5930796..f4ae7900fcd3 100644
--- a/arch/mips/Kconfig.debug
+++ b/arch/mips/Kconfig.debug
@@ -1,9 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 
-config TRACE_IRQFLAGS_SUPPORT
-	bool
-	default y
-
 config EARLY_PRINTK
 	bool "Early printk" if EXPERT
 	depends on SYS_HAS_EARLY_PRINTK
diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index 9c9f3877abf9..aea26e739543 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -46,6 +46,7 @@ config NDS32
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_DYNAMIC_FTRACE
 	select SET_FS
+	select TRACE_IRQFLAGS_SUPPORT
 	help
 	  Andes(nds32) Linux support.
 
@@ -62,9 +63,6 @@ config GENERIC_LOCKBREAK
 	def_bool y
 	depends on PREEMPTION
 
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
-
 config STACKTRACE_SUPPORT
 	def_bool y
 
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 3efe5533ea1c..33fd06f5fa41 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -41,9 +41,6 @@ config NO_IOPORT_MAP
 config FPU
 	def_bool n
 
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool n
-
 menu "Kernel features"
 
 source "kernel/Kconfig.hz"
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 50035a9816c8..e804026b4797 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -37,6 +37,7 @@ config OPENRISC
 	select GENERIC_IRQ_MULTI_HANDLER
 	select MMU_GATHER_NO_RANGE if MMU
 	select SET_FS
+	select TRACE_IRQFLAGS_SUPPORT
 
 config CPU_BIG_ENDIAN
 	def_bool y
@@ -50,9 +51,6 @@ config GENERIC_HWEIGHT
 config NO_IOPORT_MAP
 	def_bool y
 
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
-
 # For now, use generic checksum functions
 #These can be reimplemented in assembly later if so inclined
 config GENERIC_CSUM
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 95d4bbf4e455..3001a7d8fc76 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -66,6 +66,7 @@ config PARISC
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS
 	select HAVE_SOFTIRQ_ON_OWN_STACK if IRQSTACKS
 	select SET_FS
+	select TRACE_IRQFLAGS_SUPPORT
 
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 1478ded0e247..f66554cd5c45 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -1,4 +1 @@
 # SPDX-License-Identifier: GPL-2.0
-
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 8a93b509337d..ba5b66189358 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -94,10 +94,6 @@ config STACKTRACE_SUPPORT
 	bool
 	default y
 
-config TRACE_IRQFLAGS_SUPPORT
-	bool
-	default y
-
 config LOCKDEP_SUPPORT
 	bool
 	default y
@@ -270,6 +266,7 @@ config PPC
 	select STRICT_KERNEL_RWX if STRICT_MODULE_RWX
 	select SYSCTL_EXCEPTION_TRACE
 	select THREAD_INFO_IN_TASK
+	select TRACE_IRQFLAGS_SUPPORT
 	select VIRT_TO_BUS			if !PPC64
 	#
 	# Please keep this list sorted alphabetically.
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index baf60fc350a4..aac669a6c3d8 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -113,6 +113,7 @@ config RISCV
 	select SPARSE_IRQ
 	select SYSCTL_EXCEPTION_TRACE
 	select THREAD_INFO_IN_TASK
+	select TRACE_IRQFLAGS_SUPPORT
 	select UACCESS_MEMCPY if !MMU
 	select ZONE_DMA32 if 64BIT
 
@@ -182,9 +183,6 @@ config ARCH_SUPPORTS_UPROBES
 config STACKTRACE_SUPPORT
 	def_bool y
 
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
-
 config GENERIC_BUG
 	def_bool y
 	depends on BUG
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 92c0a1b4c528..5af51ace0588 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -209,6 +209,7 @@ config S390
 	select SWIOTLB
 	select SYSCTL_EXCEPTION_TRACE
 	select THREAD_INFO_IN_TASK
+	select TRACE_IRQFLAGS_SUPPORT
 	select TTY
 	select VIRT_CPU_ACCOUNTING
 	select ZONE_DMA
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index 9ea6e61d5858..e94a2a7f6bf4 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -1,8 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
-
 config EARLY_PRINTK
 	def_bool y
 
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index f37280e805ea..6904f4bdbf00 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -69,6 +69,7 @@ config SUPERH
 	select RTC_LIB
 	select SET_FS
 	select SPARSE_IRQ
+	select TRACE_IRQFLAGS_SUPPORT
 	help
 	  The SuperH is a RISC processor targeted for use in embedded systems
 	  and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 28a43d63bde1..958f790273ab 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -1,8 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
-
 config SH_STANDARD_BIOS
 	bool "Use LinuxSH standard BIOS"
 	help
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index fa650e4eadba..b120ed947f50 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -47,6 +47,7 @@ config SPARC
 	select NEED_DMA_MAP_STATE
 	select NEED_SG_DMA_LENGTH
 	select SET_FS
+	select TRACE_IRQFLAGS_SUPPORT
 
 config SPARC32
 	def_bool !64BIT
diff --git a/arch/sparc/Kconfig.debug b/arch/sparc/Kconfig.debug
index 50a918d496c8..6b2bec1888b3 100644
--- a/arch/sparc/Kconfig.debug
+++ b/arch/sparc/Kconfig.debug
@@ -1,9 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 
-config TRACE_IRQFLAGS_SUPPORT
-	bool
-	default y
-
 config DEBUG_DCFLUSH
 	bool "D-cache flush debugging"
 	depends on SPARC64 && DEBUG_KERNEL
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 77e66d3719f6..8de2646fbdb1 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -22,6 +22,7 @@ config UML
 	select GENERIC_CPU_DEVICES
 	select HAVE_GCC_PLUGINS
 	select SET_FS
+	select TRACE_IRQFLAGS_SUPPORT
 	select TTY # Needed for line.c
 
 config MMU
@@ -52,10 +53,6 @@ config ISA
 config SBUS
 	bool
 
-config TRACE_IRQFLAGS_SUPPORT
-	bool
-	default y
-
 config LOCKDEP_SUPPORT
 	bool
 	default y
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1146b85d708b..4e001bbbb425 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -259,6 +259,7 @@ config X86
 	select STACK_VALIDATION			if HAVE_STACK_VALIDATION && (HAVE_STATIC_CALL_INLINE || RETPOLINE)
 	select SYSCTL_EXCEPTION_TRACE
 	select THREAD_INFO_IN_TASK
+	select TRACE_IRQFLAGS_SUPPORT
 	select USER_STACKTRACE_SUPPORT
 	select VIRT_TO_BUS
 	select HAVE_ARCH_KCSAN			if X86_64
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 80b57e7f4947..d3a6f74a94bd 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -1,8 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
-
 config TRACE_IRQFLAGS_NMI_SUPPORT
 	def_bool y
 
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 9bf2a9bc8539..0e56bad058fa 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -42,6 +42,7 @@ config XTENSA
 	select MODULES_USE_ELF_RELA
 	select PERF_USE_VMALLOC
 	select SET_FS
+	select TRACE_IRQFLAGS_SUPPORT
 	select VIRT_TO_BUS
 	help
 	  Xtensa processors are 32-bit RISC machines designed by Tensilica
@@ -73,9 +74,6 @@ config LOCKDEP_SUPPORT
 config STACKTRACE_SUPPORT
 	def_bool y
 
-config TRACE_IRQFLAGS_SUPPORT
-	def_bool y
-
 config MMU
 	def_bool n