This is a follow up on the V4 feedback:

   https://lore.kernel.org/20251022102427.400699796@linutronix.de

Changes vs. V4:

  - Rename get/put_user_masked() to get/put_user_inline()

  - Remove the futex helpers. Keep the inline get/put for now as it needs
    more testing whether they are really valuable.

  - Picked up tags

The series is based on v6.18-rc1 and also available from git:

    git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git uaccess/scoped

Thanks,

	tglx
---
Thomas Gleixner (12):
      ARM: uaccess: Implement missing __get_user_asm_dword()
      uaccess: Provide ASM GOTO safe wrappers for unsafe_*_user()
      x86/uaccess: Use unsafe wrappers for ASM GOTO
      powerpc/uaccess: Use unsafe wrappers for ASM GOTO
      riscv/uaccess: Use unsafe wrappers for ASM GOTO
      s390/uaccess: Use unsafe wrappers for ASM GOTO
      uaccess: Provide scoped user access regions
      uaccess: Provide put/get_user_inline()
      coccinelle: misc: Add scoped_masked_$MODE_access() checker script
      futex: Convert to get/put_user_inline()
      x86/futex: Convert to scoped user access
      select: Convert to scoped user access

 arch/arm/include/asm/uaccess.h               |   26 ++
 arch/powerpc/include/asm/uaccess.h           |    8 
 arch/riscv/include/asm/uaccess.h             |    8 
 arch/s390/include/asm/uaccess.h              |    4 
 arch/x86/include/asm/futex.h                 |   75 ++----
 arch/x86/include/asm/uaccess.h               |   12 -
 fs/select.c                                  |   12 -
 include/linux/uaccess.h                      |  314 ++++++++++++++++++++++++++-
 kernel/futex/core.c                          |    4 
 kernel/futex/futex.h                         |   58 ----
 scripts/coccinelle/misc/scoped_uaccess.cocci |  108 +++++++++
 11 files changed, 501 insertions(+), 128 deletions(-)

Le 27/10/2025 à 09:43, Thomas Gleixner a écrit :
> This is a follow up on the V4 feedback:
> 
>     https://lore.kernel.org/20251022102427.400699796@linutronix.de
> 
> Changes vs. V4:
> 
>    - Rename get/put_user_masked() to get/put_user_inline()
> 
>    - Remove the futex helpers. Keep the inline get/put for now as it needs
>      more testing whether they are really valuable.
> 
>    - Picked up tags
> 
> The series is based on v6.18-rc1 and also available from git:
> 
>      git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git uaccess/scoped
> 

move_addr_to_user() in net/socket.c and put_cmsg() in net/core/scm.c 
should be converted as well

Christophe

> Thanks,
> 
> 	tglx
> ---
> Thomas Gleixner (12):
>        ARM: uaccess: Implement missing __get_user_asm_dword()
>        uaccess: Provide ASM GOTO safe wrappers for unsafe_*_user()
>        x86/uaccess: Use unsafe wrappers for ASM GOTO
>        powerpc/uaccess: Use unsafe wrappers for ASM GOTO
>        riscv/uaccess: Use unsafe wrappers for ASM GOTO
>        s390/uaccess: Use unsafe wrappers for ASM GOTO
>        uaccess: Provide scoped user access regions
>        uaccess: Provide put/get_user_inline()
>        coccinelle: misc: Add scoped_masked_$MODE_access() checker script
>        futex: Convert to get/put_user_inline()
>        x86/futex: Convert to scoped user access
>        select: Convert to scoped user access
> 
>   arch/arm/include/asm/uaccess.h               |   26 ++
>   arch/powerpc/include/asm/uaccess.h           |    8
>   arch/riscv/include/asm/uaccess.h             |    8
>   arch/s390/include/asm/uaccess.h              |    4
>   arch/x86/include/asm/futex.h                 |   75 ++----
>   arch/x86/include/asm/uaccess.h               |   12 -
>   fs/select.c                                  |   12 -
>   include/linux/uaccess.h                      |  314 ++++++++++++++++++++++++++-
>   kernel/futex/core.c                          |    4
>   kernel/futex/futex.h                         |   58 ----
>   scripts/coccinelle/misc/scoped_uaccess.cocci |  108 +++++++++
>   11 files changed, 501 insertions(+), 128 deletions(-)
> 

On Mon, Oct 27, 2025 at 09:43:40AM +0100, Thomas Gleixner wrote:
> Thomas Gleixner (12):
>       ARM: uaccess: Implement missing __get_user_asm_dword()
>       uaccess: Provide ASM GOTO safe wrappers for unsafe_*_user()
>       x86/uaccess: Use unsafe wrappers for ASM GOTO
>       powerpc/uaccess: Use unsafe wrappers for ASM GOTO
>       riscv/uaccess: Use unsafe wrappers for ASM GOTO
>       s390/uaccess: Use unsafe wrappers for ASM GOTO
>       uaccess: Provide scoped user access regions
>       uaccess: Provide put/get_user_inline()
>       futex: Convert to get/put_user_inline()
>       x86/futex: Convert to scoped user access
>       select: Convert to scoped user access

Applied to tip/core/rseq along with the first set of rseq patches. The
core-scoped-uaccess tag should denote just this series.

On Wed, Oct 29, 2025 at 11:23:32AM +0100, Peter Zijlstra wrote:
> On Mon, Oct 27, 2025 at 09:43:40AM +0100, Thomas Gleixner wrote:
> > Thomas Gleixner (12):
> >       ARM: uaccess: Implement missing __get_user_asm_dword()
> >       uaccess: Provide ASM GOTO safe wrappers for unsafe_*_user()
> >       x86/uaccess: Use unsafe wrappers for ASM GOTO
> >       powerpc/uaccess: Use unsafe wrappers for ASM GOTO
> >       riscv/uaccess: Use unsafe wrappers for ASM GOTO
> >       s390/uaccess: Use unsafe wrappers for ASM GOTO
> >       uaccess: Provide scoped user access regions
> >       uaccess: Provide put/get_user_inline()
> >       futex: Convert to get/put_user_inline()
> >       x86/futex: Convert to scoped user access
> >       select: Convert to scoped user access
> 
> Applied to tip/core/rseq along with the first set of rseq patches. The
> core-scoped-uaccess tag should denote just this series.

Due to various build fail, I've re-created the whole branch, including
the tag. Sorry about that.

On Mon, 27 Oct 2025 at 01:43, Thomas Gleixner <tglx@linutronix.de> wrote:
>
> This is a follow up on the V4 feedback:

This series looks all sane to me, and I think the naming etc now all
makes perfect sense.

                  Linus