[PATCH v1 0/8] Miscellaneous user access improvement

Christophe Leroy christophe.leroy at csgroup.eu
Thu Mar 11 04:56:59 AEDT 2021


Patches 1-3 are cleaning parts of uaccess.h not related
to put_user/get_user
Patch 4 removes some usage of consecutives __get_user
Patches 5 rewrite __patch_instruction to not use uaccess.h internals.
Patches 6-8 switch some parts of code to user_access_begin/end blocks

All patches are independant.

Christophe Leroy (8):
  powerpc/uaccess: Also perform 64 bits copies in unsafe_copy_to_user()
    on ppc32
  powerpc/uaccess: Swap clear_user() and __clear_user()
  powerpc/uaccess: Move copy_mc_xxx() functions down
  powerpc/syscalls: Use sys_old_select() in ppc_select()
  powerpc/lib: Don't use __put_user_asm_goto() outside of uaccess.h
  powerpc/net: Switch csum_and_copy_{to/from}_user to user_access block
  powerpc/futex: Switch to user_access block
  powerpc/ptrace: Convert gpr32_set_common() to user access block

 arch/powerpc/include/asm/futex.h         | 12 ++--
 arch/powerpc/include/asm/ptrace.h        |  2 +-
 arch/powerpc/include/asm/uaccess.h       | 75 ++++++++++++------------
 arch/powerpc/include/asm/unistd.h        |  1 +
 arch/powerpc/kernel/ptrace/ptrace-view.c | 30 ++++++----
 arch/powerpc/kernel/syscalls.c           | 12 +---
 arch/powerpc/lib/checksum_wrappers.c     | 15 ++---
 arch/powerpc/lib/code-patching.c         | 13 ++--
 8 files changed, 77 insertions(+), 83 deletions(-)

-- 
2.25.0



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