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Message-Id: <cover.1610622251.git.viresh.kumar@linaro.org>
Date:   Thu, 14 Jan 2021 17:04:24 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Robert Richter <rric@...nel.org>
Cc:     Viresh Kumar <viresh.kumar@...aro.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Arnd Bergmann <arnd@...nel.org>, oprofile-list@...ts.sf.net,
        William Cohen <wcohen@...hat.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        anmar.oueja@...aro.org
Subject: [PATCH 00/18] drivers: Remove oprofile and dcookies

Hello,

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.

Remove oprofile and dcookies (whose only user is oprofile) support from
the kernel.

This was suggested here [1] earlier.

This is build/boot tested by kernel test robot (Intel) and Linaro's
Tuxmake[2] for a lot of architectures and no failures were reported.

--
Viresh

[1] https://lore.kernel.org/lkml/CAHk-=whw9t3ZtV8iA2SJWYQS1VOJuS14P_qhj3v5-9PCBmGQww@mail.gmail.com/
[2] https://lwn.net/Articles/841624/

Viresh Kumar (18):
  arch: alpha: Remove CONFIG_OPROFILE support
  arch: arm: Remove CONFIG_OPROFILE support
  arch: arc: Remove CONFIG_OPROFILE support
  arch: hexagon: Don't select HAVE_OPROFILE
  arch: ia64: Remove CONFIG_OPROFILE support
  arch: ia64: Remove rest of perfmon support
  arch: microblaze: Remove CONFIG_OPROFILE support
  arch: mips: Remove CONFIG_OPROFILE support
  arch: parisc: Remove CONFIG_OPROFILE support
  arch: powerpc: Stop building and using oprofile
  arch: powerpc: Remove oprofile
  arch: s390: Remove CONFIG_OPROFILE support
  arch: sh: Remove CONFIG_OPROFILE support
  arch: sparc: Remove CONFIG_OPROFILE support
  arch: x86: Remove CONFIG_OPROFILE support
  arch: xtensa: Remove CONFIG_OPROFILE support
  drivers: Remove CONFIG_OPROFILE support
  fs: Remove dcookies support

 Documentation/RCU/NMI-RCU.rst                 |    3 +-
 .../admin-guide/kernel-parameters.txt         |   14 -
 Documentation/kbuild/makefiles.rst            |    1 -
 Documentation/process/magic-number.rst        |    1 -
 .../it_IT/process/magic-number.rst            |    1 -
 .../zh_CN/process/magic-number.rst            |    1 -
 MAINTAINERS                                   |   11 -
 arch/Kconfig                                  |   32 -
 arch/alpha/Kconfig                            |    1 -
 arch/alpha/Makefile                           |    1 -
 arch/alpha/oprofile/Makefile                  |   20 -
 arch/alpha/oprofile/common.c                  |  189 --
 arch/alpha/oprofile/op_impl.h                 |   55 -
 arch/alpha/oprofile/op_model_ev4.c            |  114 --
 arch/alpha/oprofile/op_model_ev5.c            |  209 --
 arch/alpha/oprofile/op_model_ev6.c            |  101 -
 arch/alpha/oprofile/op_model_ev67.c           |  261 ---
 arch/arc/Kconfig                              |    1 -
 arch/arc/Makefile                             |    2 -
 arch/arc/oprofile/Makefile                    |   10 -
 arch/arc/oprofile/common.c                    |   23 -
 arch/arm/Kconfig                              |    1 -
 arch/arm/Makefile                             |    2 -
 arch/arm/configs/bcm2835_defconfig            |    1 -
 arch/arm/configs/cns3420vb_defconfig          |    1 -
 arch/arm/configs/corgi_defconfig              |    1 -
 arch/arm/configs/imx_v4_v5_defconfig          |    1 -
 arch/arm/configs/keystone_defconfig           |    1 -
 arch/arm/configs/multi_v5_defconfig           |    1 -
 arch/arm/configs/mv78xx0_defconfig            |    1 -
 arch/arm/configs/mvebu_v5_defconfig           |    1 -
 arch/arm/configs/omap1_defconfig              |    1 -
 arch/arm/configs/omap2plus_defconfig          |    1 -
 arch/arm/configs/orion5x_defconfig            |    1 -
 arch/arm/configs/pxa_defconfig                |    1 -
 arch/arm/configs/qcom_defconfig               |    1 -
 arch/arm/configs/socfpga_defconfig            |    1 -
 arch/arm/configs/spitz_defconfig              |    1 -
 arch/arm/configs/vexpress_defconfig           |    1 -
 arch/arm/oprofile/Makefile                    |   14 -
 arch/arm/oprofile/common.c                    |  132 --
 arch/hexagon/Kconfig                          |    1 -
 arch/ia64/Kconfig                             |    1 -
 arch/ia64/Makefile                            |    1 -
 arch/ia64/configs/bigsur_defconfig            |    1 -
 arch/ia64/include/asm/hw_irq.h                |    1 -
 arch/ia64/include/asm/perfmon.h               |  111 --
 arch/ia64/include/uapi/asm/perfmon.h          |  178 --
 .../include/uapi/asm/perfmon_default_smpl.h   |   84 -
 arch/ia64/kernel/palinfo.c                    |   41 -
 arch/ia64/kernel/perfmon_default_smpl.c       |  297 ---
 arch/ia64/kernel/perfmon_generic.h            |   46 -
 arch/ia64/kernel/perfmon_itanium.h            |    2 +-
 arch/ia64/kernel/perfmon_mckinley.h           |  188 --
 arch/ia64/kernel/perfmon_montecito.h          |  270 ---
 arch/ia64/oprofile/Makefile                   |   10 -
 arch/ia64/oprofile/backtrace.c                |  131 --
 arch/ia64/oprofile/init.c                     |   28 -
 arch/microblaze/Kconfig                       |    1 -
 arch/microblaze/Makefile                      |    2 -
 arch/microblaze/oprofile/Makefile             |   14 -
 .../microblaze/oprofile/microblaze_oprofile.c |   22 -
 arch/mips/Kconfig                             |    3 +-
 arch/mips/Makefile                            |    1 -
 arch/mips/configs/fuloong2e_defconfig         |    1 -
 arch/mips/configs/ip32_defconfig              |    1 -
 arch/mips/configs/lemote2f_defconfig          |    1 -
 arch/mips/configs/mtx1_defconfig              |    1 -
 arch/mips/configs/rs90_defconfig              |    1 -
 .../include/asm/mach-loongson2ef/loongson.h   |    9 -
 arch/mips/loongson2ef/fuloong-2e/irq.c        |    2 +-
 arch/mips/loongson2ef/lemote-2f/irq.c         |    1 -
 arch/mips/oprofile/Makefile                   |   18 -
 arch/mips/oprofile/backtrace.c                |  177 --
 arch/mips/oprofile/common.c                   |  147 --
 arch/mips/oprofile/op_impl.h                  |   41 -
 arch/mips/oprofile/op_model_loongson2.c       |  161 --
 arch/mips/oprofile/op_model_loongson3.c       |  213 --
 arch/mips/oprofile/op_model_mipsxx.c          |  479 -----
 arch/parisc/Kconfig                           |    1 -
 arch/parisc/Makefile                          |    2 -
 arch/parisc/oprofile/Makefile                 |   10 -
 arch/parisc/oprofile/init.c                   |   23 -
 arch/powerpc/Kconfig                          |    1 -
 arch/powerpc/Makefile                         |    2 -
 arch/powerpc/configs/44x/akebono_defconfig    |    1 -
 arch/powerpc/configs/44x/currituck_defconfig  |    1 -
 arch/powerpc/configs/44x/fsp2_defconfig       |    1 -
 arch/powerpc/configs/44x/iss476-smp_defconfig |    1 -
 arch/powerpc/configs/cell_defconfig           |    1 -
 arch/powerpc/configs/g5_defconfig             |    1 -
 arch/powerpc/configs/maple_defconfig          |    1 -
 arch/powerpc/configs/pasemi_defconfig         |    1 -
 arch/powerpc/configs/pmac32_defconfig         |    1 -
 arch/powerpc/configs/powernv_defconfig        |    1 -
 arch/powerpc/configs/ppc64_defconfig          |    1 -
 arch/powerpc/configs/ppc64e_defconfig         |    1 -
 arch/powerpc/configs/ppc6xx_defconfig         |    1 -
 arch/powerpc/configs/ps3_defconfig            |    1 -
 arch/powerpc/configs/pseries_defconfig        |    1 -
 arch/powerpc/include/asm/cputable.h           |   20 -
 arch/powerpc/include/asm/oprofile_impl.h      |  135 --
 arch/powerpc/include/asm/spu.h                |   33 -
 arch/powerpc/kernel/cputable.c                |   67 -
 arch/powerpc/kernel/dt_cpu_ftrs.c             |    2 -
 arch/powerpc/oprofile/Makefile                |   19 -
 arch/powerpc/oprofile/backtrace.c             |  120 --
 arch/powerpc/oprofile/cell/pr_util.h          |  110 --
 arch/powerpc/oprofile/cell/spu_profiler.c     |  248 ---
 arch/powerpc/oprofile/cell/spu_task_sync.c    |  657 -------
 arch/powerpc/oprofile/cell/vma_map.c          |  279 ---
 arch/powerpc/oprofile/common.c                |  243 ---
 arch/powerpc/oprofile/op_model_7450.c         |  207 --
 arch/powerpc/oprofile/op_model_cell.c         | 1709 -----------------
 arch/powerpc/oprofile/op_model_fsl_emb.c      |  380 ----
 arch/powerpc/oprofile/op_model_pa6t.c         |  227 ---
 arch/powerpc/oprofile/op_model_power4.c       |  438 -----
 arch/powerpc/platforms/cell/Kconfig           |    5 -
 arch/powerpc/platforms/cell/spu_notify.c      |   55 -
 arch/powerpc/platforms/cell/spufs/run.c       |    4 +-
 arch/powerpc/platforms/cell/spufs/sched.c     |    5 -
 arch/powerpc/platforms/cell/spufs/spufs.h     |    1 -
 arch/s390/Kconfig                             |    1 -
 arch/s390/Makefile                            |    3 -
 arch/s390/configs/debug_defconfig             |    1 -
 arch/s390/configs/defconfig                   |    1 -
 arch/s390/oprofile/Makefile                   |   10 -
 arch/s390/oprofile/init.c                     |   37 -
 arch/sh/Kconfig                               |    1 -
 arch/sh/Makefile                              |    1 -
 arch/sh/configs/espt_defconfig                |    1 -
 arch/sh/configs/migor_defconfig               |    1 -
 arch/sh/configs/r7780mp_defconfig             |    1 -
 arch/sh/configs/r7785rp_defconfig             |    1 -
 arch/sh/configs/rsk7201_defconfig             |    1 -
 arch/sh/configs/rsk7203_defconfig             |    1 -
 arch/sh/configs/rts7751r2d1_defconfig         |    1 -
 arch/sh/configs/rts7751r2dplus_defconfig      |    1 -
 arch/sh/configs/sdk7786_defconfig             |    1 -
 arch/sh/configs/se7206_defconfig              |    1 -
 arch/sh/configs/sh03_defconfig                |    1 -
 arch/sh/configs/sh7724_generic_defconfig      |    1 -
 arch/sh/configs/sh7763rdp_defconfig           |    1 -
 arch/sh/configs/sh7770_generic_defconfig      |    1 -
 arch/sh/configs/shx3_defconfig                |    1 -
 arch/sh/oprofile/Makefile                     |   16 -
 arch/sh/oprofile/backtrace.c                  |   80 -
 arch/sh/oprofile/common.c                     |   64 -
 arch/sparc/Kconfig                            |    1 -
 arch/sparc/Makefile                           |    1 -
 arch/sparc/configs/sparc64_defconfig          |    1 -
 arch/sparc/oprofile/Makefile                  |   10 -
 arch/sparc/oprofile/init.c                    |   87 -
 arch/x86/Kconfig                              |    1 -
 arch/x86/Makefile                             |    3 -
 arch/x86/include/asm/nmi.h                    |    1 -
 arch/x86/kernel/cpu/perfctr-watchdog.c        |   11 +-
 arch/x86/oprofile/Makefile                    |   12 -
 arch/x86/oprofile/backtrace.c                 |  127 --
 arch/x86/oprofile/init.c                      |   38 -
 arch/x86/oprofile/nmi_int.c                   |  780 --------
 arch/x86/oprofile/op_counter.h                |   30 -
 arch/x86/oprofile/op_model_amd.c              |  542 ------
 arch/x86/oprofile/op_model_p4.c               |  723 -------
 arch/x86/oprofile/op_model_ppro.c             |  245 ---
 arch/x86/oprofile/op_x86_model.h              |   90 -
 arch/xtensa/Kconfig                           |    1 -
 arch/xtensa/Makefile                          |    1 -
 arch/xtensa/configs/audio_kc705_defconfig     |    1 -
 arch/xtensa/configs/generic_kc705_defconfig   |    1 -
 arch/xtensa/configs/smp_lx200_defconfig       |    1 -
 arch/xtensa/configs/xip_kc705_defconfig       |    1 -
 arch/xtensa/kernel/stacktrace.c               |    2 +-
 arch/xtensa/oprofile/Makefile                 |   10 -
 arch/xtensa/oprofile/backtrace.c              |   27 -
 arch/xtensa/oprofile/init.c                   |   26 -
 drivers/oprofile/buffer_sync.c                |  591 ------
 drivers/oprofile/buffer_sync.h                |   22 -
 drivers/oprofile/cpu_buffer.c                 |  465 -----
 drivers/oprofile/cpu_buffer.h                 |  121 --
 drivers/oprofile/event_buffer.c               |  209 --
 drivers/oprofile/event_buffer.h               |   40 -
 drivers/oprofile/nmi_timer_int.c              |  157 --
 drivers/oprofile/oprof.c                      |  286 ---
 drivers/oprofile/oprof.h                      |   50 -
 drivers/oprofile/oprofile_files.c             |  201 --
 drivers/oprofile/oprofile_perf.c              |  328 ----
 drivers/oprofile/oprofile_stats.c             |   84 -
 drivers/oprofile/oprofile_stats.h             |   33 -
 drivers/oprofile/oprofilefs.c                 |  300 ---
 drivers/oprofile/timer_int.c                  |  122 --
 fs/Makefile                                   |    1 -
 fs/dcookies.c                                 |  356 ----
 include/linux/dcookies.h                      |   69 -
 include/linux/oprofile.h                      |  209 --
 init/Kconfig                                  |    2 +-
 kernel/sys.c                                  |    1 -
 usr/include/Makefile                          |    2 -
 198 files changed, 8 insertions(+), 15566 deletions(-)
 delete mode 100644 arch/alpha/oprofile/Makefile
 delete mode 100644 arch/alpha/oprofile/common.c
 delete mode 100644 arch/alpha/oprofile/op_impl.h
 delete mode 100644 arch/alpha/oprofile/op_model_ev4.c
 delete mode 100644 arch/alpha/oprofile/op_model_ev5.c
 delete mode 100644 arch/alpha/oprofile/op_model_ev6.c
 delete mode 100644 arch/alpha/oprofile/op_model_ev67.c
 delete mode 100644 arch/arc/oprofile/Makefile
 delete mode 100644 arch/arc/oprofile/common.c
 delete mode 100644 arch/arm/oprofile/Makefile
 delete mode 100644 arch/arm/oprofile/common.c
 delete mode 100644 arch/ia64/include/asm/perfmon.h
 delete mode 100644 arch/ia64/include/uapi/asm/perfmon.h
 delete mode 100644 arch/ia64/include/uapi/asm/perfmon_default_smpl.h
 delete mode 100644 arch/ia64/kernel/perfmon_default_smpl.c
 delete mode 100644 arch/ia64/kernel/perfmon_generic.h
 delete mode 100644 arch/ia64/kernel/perfmon_mckinley.h
 delete mode 100644 arch/ia64/kernel/perfmon_montecito.h
 delete mode 100644 arch/ia64/oprofile/Makefile
 delete mode 100644 arch/ia64/oprofile/backtrace.c
 delete mode 100644 arch/ia64/oprofile/init.c
 delete mode 100644 arch/microblaze/oprofile/Makefile
 delete mode 100644 arch/microblaze/oprofile/microblaze_oprofile.c
 delete mode 100644 arch/mips/oprofile/Makefile
 delete mode 100644 arch/mips/oprofile/backtrace.c
 delete mode 100644 arch/mips/oprofile/common.c
 delete mode 100644 arch/mips/oprofile/op_impl.h
 delete mode 100644 arch/mips/oprofile/op_model_loongson2.c
 delete mode 100644 arch/mips/oprofile/op_model_loongson3.c
 delete mode 100644 arch/mips/oprofile/op_model_mipsxx.c
 delete mode 100644 arch/parisc/oprofile/Makefile
 delete mode 100644 arch/parisc/oprofile/init.c
 delete mode 100644 arch/powerpc/include/asm/oprofile_impl.h
 delete mode 100644 arch/powerpc/oprofile/Makefile
 delete mode 100644 arch/powerpc/oprofile/backtrace.c
 delete mode 100644 arch/powerpc/oprofile/cell/pr_util.h
 delete mode 100644 arch/powerpc/oprofile/cell/spu_profiler.c
 delete mode 100644 arch/powerpc/oprofile/cell/spu_task_sync.c
 delete mode 100644 arch/powerpc/oprofile/cell/vma_map.c
 delete mode 100644 arch/powerpc/oprofile/common.c
 delete mode 100644 arch/powerpc/oprofile/op_model_7450.c
 delete mode 100644 arch/powerpc/oprofile/op_model_cell.c
 delete mode 100644 arch/powerpc/oprofile/op_model_fsl_emb.c
 delete mode 100644 arch/powerpc/oprofile/op_model_pa6t.c
 delete mode 100644 arch/powerpc/oprofile/op_model_power4.c
 delete mode 100644 arch/powerpc/platforms/cell/spu_notify.c
 delete mode 100644 arch/s390/oprofile/Makefile
 delete mode 100644 arch/s390/oprofile/init.c
 delete mode 100644 arch/sh/oprofile/Makefile
 delete mode 100644 arch/sh/oprofile/backtrace.c
 delete mode 100644 arch/sh/oprofile/common.c
 delete mode 100644 arch/sparc/oprofile/Makefile
 delete mode 100644 arch/sparc/oprofile/init.c
 delete mode 100644 arch/x86/oprofile/Makefile
 delete mode 100644 arch/x86/oprofile/backtrace.c
 delete mode 100644 arch/x86/oprofile/init.c
 delete mode 100644 arch/x86/oprofile/nmi_int.c
 delete mode 100644 arch/x86/oprofile/op_counter.h
 delete mode 100644 arch/x86/oprofile/op_model_amd.c
 delete mode 100644 arch/x86/oprofile/op_model_p4.c
 delete mode 100644 arch/x86/oprofile/op_model_ppro.c
 delete mode 100644 arch/x86/oprofile/op_x86_model.h
 delete mode 100644 arch/xtensa/oprofile/Makefile
 delete mode 100644 arch/xtensa/oprofile/backtrace.c
 delete mode 100644 arch/xtensa/oprofile/init.c
 delete mode 100644 drivers/oprofile/buffer_sync.c
 delete mode 100644 drivers/oprofile/buffer_sync.h
 delete mode 100644 drivers/oprofile/cpu_buffer.c
 delete mode 100644 drivers/oprofile/cpu_buffer.h
 delete mode 100644 drivers/oprofile/event_buffer.c
 delete mode 100644 drivers/oprofile/event_buffer.h
 delete mode 100644 drivers/oprofile/nmi_timer_int.c
 delete mode 100644 drivers/oprofile/oprof.c
 delete mode 100644 drivers/oprofile/oprof.h
 delete mode 100644 drivers/oprofile/oprofile_files.c
 delete mode 100644 drivers/oprofile/oprofile_perf.c
 delete mode 100644 drivers/oprofile/oprofile_stats.c
 delete mode 100644 drivers/oprofile/oprofile_stats.h
 delete mode 100644 drivers/oprofile/oprofilefs.c
 delete mode 100644 drivers/oprofile/timer_int.c
 delete mode 100644 fs/dcookies.c
 delete mode 100644 include/linux/dcookies.h
 delete mode 100644 include/linux/oprofile.h


base-commit: 7c53f6b671f4aba70ff15e1b05148b10d58c2837
-- 
2.25.0.rc1.19.g042ed3e048af

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