Commit 7a3c90df authored Jan 14, 2021 by Viresh Kumar

arch: powerpc: Stop building and using oprofile



The "oprofile" user-space tools don't use the kernel OPROFILE support
any more, and haven't in a long time. User-space has been converted to
the perf interfaces.

This commits stops building oprofile for powerpc and removes any
reference to it from directories in arch/powerpc/ apart from
arch/powerpc/oprofile, which will be removed in the next commit (this is
broken into two commits as the size of the commit became very big, ~5k
lines).

Note that the member "oprofile_cpu_type" in "struct cpu_spec" isn't
removed as it was also used by other parts of the code.

Suggested-by: Christoph Hellwig <hch@infradead.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Robert Richter <rric@kernel.org>
Acked-by: William Cohen <wcohen@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Thomas Gleixner <tglx@linutronix.de>

parent 7a22384d

arch/powerpc/Kconfig

+0 −1

Original line number	Original line	Diff line number	Diff line
	@@ -226,7 +226,6 @@ config PPC
	select HAVE_MOD_ARCH_SPECIFIC		select HAVE_MOD_ARCH_SPECIFIC
	select HAVE_NMI if PERF_EVENTS \|\| (PPC64 && PPC_BOOK3S)		select HAVE_NMI if PERF_EVENTS \|\| (PPC64 && PPC_BOOK3S)
	select HAVE_HARDLOCKUP_DETECTOR_ARCH if (PPC64 && PPC_BOOK3S)		select HAVE_HARDLOCKUP_DETECTOR_ARCH if (PPC64 && PPC_BOOK3S)
	select HAVE_OPROFILE
	select HAVE_OPTPROBES if PPC64		select HAVE_OPTPROBES if PPC64
	select HAVE_PERF_EVENTS		select HAVE_PERF_EVENTS
	select HAVE_PERF_EVENTS_NMI if PPC64		select HAVE_PERF_EVENTS_NMI if PPC64

arch/powerpc/Makefile

+0 −2

Original line number	Original line	Diff line number	Diff line
	@@ -276,8 +276,6 @@ head-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += arch/powerpc/kernel/prom_init.o
	# See arch/powerpc/Kbuild for content of core part of the kernel		# See arch/powerpc/Kbuild for content of core part of the kernel
	core-y += arch/powerpc/		core-y += arch/powerpc/

	drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/

	# Default to zImage, override when needed		# Default to zImage, override when needed
	all: zImage		all: zImage

arch/powerpc/configs/44x/akebono_defconfig

+0 −1

Original line number	Original line	Diff line number	Diff line
	@@ -8,7 +8,6 @@ CONFIG_EXPERT=y
	CONFIG_KALLSYMS_ALL=y		CONFIG_KALLSYMS_ALL=y
	# CONFIG_SLUB_CPU_PARTIAL is not set		# CONFIG_SLUB_CPU_PARTIAL is not set
	CONFIG_PROFILING=y		CONFIG_PROFILING=y
	CONFIG_OPROFILE=y
	CONFIG_MODULES=y		CONFIG_MODULES=y
	CONFIG_MODULE_UNLOAD=y		CONFIG_MODULE_UNLOAD=y
	# CONFIG_BLK_DEV_BSG is not set		# CONFIG_BLK_DEV_BSG is not set

arch/powerpc/configs/44x/currituck_defconfig

+0 −1

Original line number	Original line	Diff line number	Diff line
	@@ -6,7 +6,6 @@ CONFIG_LOG_BUF_SHIFT=14
	CONFIG_EXPERT=y		CONFIG_EXPERT=y
	CONFIG_KALLSYMS_ALL=y		CONFIG_KALLSYMS_ALL=y
	CONFIG_PROFILING=y		CONFIG_PROFILING=y
	CONFIG_OPROFILE=y
	CONFIG_MODULES=y		CONFIG_MODULES=y
	CONFIG_MODULE_UNLOAD=y		CONFIG_MODULE_UNLOAD=y
	# CONFIG_BLK_DEV_BSG is not set		# CONFIG_BLK_DEV_BSG is not set

arch/powerpc/configs/44x/fsp2_defconfig

+0 −1

Original line number	Original line	Diff line number	Diff line
	@@ -17,7 +17,6 @@ CONFIG_KALLSYMS_ALL=y
	CONFIG_BPF_SYSCALL=y		CONFIG_BPF_SYSCALL=y
	CONFIG_EMBEDDED=y		CONFIG_EMBEDDED=y
	CONFIG_PROFILING=y		CONFIG_PROFILING=y
	CONFIG_OPROFILE=y
	CONFIG_MODULES=y		CONFIG_MODULES=y
	CONFIG_MODULE_UNLOAD=y		CONFIG_MODULE_UNLOAD=y
	# CONFIG_BLK_DEV_BSG is not set		# CONFIG_BLK_DEV_BSG is not set