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Message-Id: <1283442391-23612-1-git-send-email-namhyung@gmail.com> Date: Fri, 3 Sep 2010 00:46:07 +0900 From: Namhyung Kim <namhyung@...il.com> To: Roland McGrath <roland@...hat.com>, Oleg Nesterov <oleg@...hat.com> Cc: Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org Subject: [PATCH v2 00/24] ptrace cleanups Hello, This patchset tries to cleanup architecture independent/dependent part of ptrace syscall. Specifically it changes prototype of sys_ptrace() to have its arguments @addr and @data to be unsigned long. Since user space API of ptrace() declares them as void pointers, and most of archs consider them unsigned already in their arch_ptrace(), it would be no harmful to change them from (signed) long into unsigned long, IMHO. ptrace() code accesses user area using above arguments frequently, changing them enables to drop unnecessary __force markup when casting them to __user pointers because sparse allows it only in case of unsigned long. And some duplicated/misused castings can be grouped into one place in favor of new variables to cleanup code further. This was suggested by Arnd Bergmann and comment from Christoph Hellwig was also helpful. Although I couldn't test all archs, I hope it will not break anything. Any comments would be appreciated. Thanks. * Changes from v1: combine all arch signature changes into a single patch retain uses of get/put_user() rebased on top of 2.6.36-rc3 --- Namhyung Kim (24): ptrace: change signature of sys_ptrace() and friends ptrace: cleanup ptrace_request() ptrace: change signature of arch_ptrace() ptrace: cleanup arch_ptrace() on x86 ptrace: cleanup arch_ptrace() on ARM ptrace: cleanup arch_ptrace() on avr32 ptrace: cleanup arch_ptrace() and friends on Blackfin ptrace: cleanup arch_ptrace() on cris ptrace: cleanup arch_ptrace() on frv ptrace: cleanup arch_ptrace() on h8300 ptrace: cleanup arch_ptrace() on m32r ptrace: cleanup arch_ptrace() on m68k ptrace: cleanup arch_ptrace() on m68knommu ptrace: cleanup arch_ptrace() on microblaze ptrace: cleanup arch_ptrace() on MIPS ptrace: cleanup arch_ptrace() on mn10300 ptrace: cleanup arch_ptrace() on parisc ptrace: cleanup arch_ptrace() on powerpc ptrace: cleanup arch_ptrace() on score ptrace: cleanup arch_ptrace() on sh ptrace: cleanup arch_ptrace() on sparc ptrace: cleanup arch_ptrace() on tile ptrace: cleanup arch_ptrace() on um ptrace: cleanup arch_ptrace() on xtensa arch/alpha/kernel/ptrace.c | 7 ++-- arch/arm/kernel/ptrace.c | 28 ++++++++------- arch/avr32/kernel/ptrace.c | 11 +++--- arch/blackfin/kernel/ptrace.c | 16 +++++---- arch/cris/arch-v10/kernel/ptrace.c | 20 +++++----- arch/cris/arch-v32/kernel/ptrace.c | 16 ++++---- arch/frv/kernel/ptrace.c | 32 ++++++++--------- arch/h8300/kernel/ptrace.c | 33 +++++++++--------- arch/ia64/kernel/ptrace.c | 3 +- arch/m32r/kernel/ptrace.c | 11 +++--- arch/m68k/kernel/ptrace.c | 51 ++++++++++++++------------- arch/m68knommu/kernel/ptrace.c | 63 ++++++++++++++++------------------ arch/microblaze/kernel/ptrace.c | 5 ++- arch/mips/kernel/ptrace.c | 25 +++++++------ arch/mn10300/kernel/ptrace.c | 20 +++++----- arch/parisc/kernel/ptrace.c | 13 ++++--- arch/powerpc/kernel/ptrace.c | 66 ++++++++++++++++++----------------- arch/s390/kernel/ptrace.c | 3 +- arch/score/kernel/ptrace.c | 7 ++-- arch/sh/kernel/ptrace_32.c | 45 +++++++++++++----------- arch/sh/kernel/ptrace_64.c | 25 +++++++++----- arch/sparc/kernel/ptrace_32.c | 57 ++++++++++++------------------- arch/sparc/kernel/ptrace_64.c | 15 ++++---- arch/tile/kernel/ptrace.c | 11 +++--- arch/um/kernel/ptrace.c | 23 ++++++------ arch/um/sys-i386/ptrace.c | 4 +- arch/um/sys-x86_64/ptrace.c | 11 +++--- arch/x86/kernel/ptrace.c | 20 +++++------ arch/xtensa/kernel/ptrace.c | 14 ++++--- include/linux/ptrace.h | 12 ++++-- include/linux/syscalls.h | 3 +- kernel/ptrace.c | 29 +++++++++------ 32 files changed, 360 insertions(+), 339 deletions(-) -- 1.7.2.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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