[PATCH v11 0/8] Disable compat cruft on ppc64le v11

From: Michal Suchanek <msuchanek@suse.de>
To: linuxppc-dev@lists.ozlabs.org
Cc: Mark Rutland <mark.rutland@arm.com>,
	Gustavo Luiz Duarte <gustavold@linux.ibm.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	linux-kernel@vger.kernel.org, Paul Mackerras <paulus@samba.org>,
	Jiri Olsa <jolsa@redhat.com>, Rob Herring <robh@kernel.org>,
	Michael Neuling <mikey@neuling.org>,
	Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
	Masahiro Yamada <masahiroy@kernel.org>,
	Nayna Jain <nayna@linux.ibm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Ingo Molnar <mingo@redhat.com>,
	Allison Randal <allison@lohutok.net>,
	Jordan Niethe <jniethe5@gmail.com>,
	Michal Suchanek <msuchanek@suse.de>,
	Valentin Schneider <valentin.schneider@arm.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Hari Bathini <hbathini@linux.ibm.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Nicholas Piggin <npiggin@gmail.com>,
	Claudio Carvalho <cclaudio@linux.ibm.com>,
	Eric Richter <erichte@linux.ibm.com>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	linux-fsdevel@vger.kernel.org,
	"David S. Miller" <davem@davemloft.net>,
	Thiago Jung Bauermann <bauerman@linux.ibm.com>
Subject: [PATCH v11 0/8] Disable compat cruft on ppc64le v11
Date: Thu, 19 Mar 2020 13:19:28 +0100	[thread overview]
Message-ID: <cover.1584620202.git.msuchanek@suse.de> (raw)
In-Reply-To: <20200225173541.1549955-1-npiggin@gmail.com>

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

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
  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                            |   2 +
 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          |  20 ++
 arch/powerpc/perf/callchain_32.c       | 196 ++++++++++++++
 arch/powerpc/perf/callchain_64.c       | 174 ++++++++++++
 fs/read_write.c                        |   3 +-
 16 files changed, 556 insertions(+), 511 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