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Subject[PATCH v12 0/8] Disable compat cruft on ppc64le v12
Date
Less code means less bugs so add a knob to skip the compat stuff.

Changes in v2: saner CONFIG_COMPAT ifdefs
Changes in v3:
- change llseek to 32bit instead of builing it unconditionally in fs
- clanup the makefile conditionals
- remove some ifdefs or convert to IS_DEFINED where possible
Changes in v4:
- cleanup is_32bit_task and current_is_64bit
- more makefile cleanup
Changes in v5:
- more current_is_64bit cleanup
- split off callchain.c 32bit and 64bit parts
Changes in v6:
- cleanup makefile after split
- consolidate read_user_stack_32
- fix some checkpatch warnings
Changes in v7:
- add back __ARCH_WANT_SYS_LLSEEK to fix build with llseek
- remove leftover hunk
- add review tags
Changes in v8:
- consolidate valid_user_sp to fix it in the split callchain.c
- fix build errors/warnings with PPC64 !COMPAT and PPC32
Changes in v9:
- remove current_is_64bit()
Chanegs in v10:
- rebase, sent together with the syscall cleanup
Changes in v11:
- rebase
- add MAINTAINERS pattern for ppc perf
Changes in v12:
- simplify valid_user_sp and change to invalid_user_sp
- remove superfluous perf patterns in MAINTAINERS

Michal Suchanek (8):
powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro
powerpc: move common register copy functions from signal_32.c to
signal.c
powerpc/perf: consolidate read_user_stack_32
powerpc/perf: consolidate valid_user_sp -> invalid_user_sp
powerpc/64: make buildable without CONFIG_COMPAT
powerpc/64: Make COMPAT user-selectable disabled on littleendian by
default.
powerpc/perf: split callchain.c by bitness
MAINTAINERS: perf: Add pattern that matches ppc perf to the perf
entry.

MAINTAINERS | 6 +-
arch/powerpc/Kconfig | 5 +-
arch/powerpc/include/asm/thread_info.h | 4 +-
arch/powerpc/include/asm/unistd.h | 1 +
arch/powerpc/kernel/Makefile | 6 +-
arch/powerpc/kernel/entry_64.S | 2 +
arch/powerpc/kernel/signal.c | 144 +++++++++-
arch/powerpc/kernel/signal_32.c | 140 ----------
arch/powerpc/kernel/syscall_64.c | 6 +-
arch/powerpc/kernel/vdso.c | 3 +-
arch/powerpc/perf/Makefile | 5 +-
arch/powerpc/perf/callchain.c | 356 +------------------------
arch/powerpc/perf/callchain.h | 19 ++
arch/powerpc/perf/callchain_32.c | 196 ++++++++++++++
arch/powerpc/perf/callchain_64.c | 174 ++++++++++++
fs/read_write.c | 3 +-
16 files changed, 556 insertions(+), 514 deletions(-)
create mode 100644 arch/powerpc/perf/callchain.h
create mode 100644 arch/powerpc/perf/callchain_32.c
create mode 100644 arch/powerpc/perf/callchain_64.c

--
2.23.0

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