Extend KCSAN to all powerpc

[PATCH 0/3] Extend KCSAN to all powerpc

Posted by Christophe Leroy 2 years, 9 months ago

This series enables KCSAN on all powerpc.

To do this, a fix is required to KCSAN core.

Once that fix is done, the stubs can also be removed from xtensa.

It would be nice if patch 1 could go in v6.4 as a fix, then patches 2 and 3
could be handled separately in each architecture in next cycle.

Christophe Leroy (2):
  kcsan: Don't expect 64 bits atomic builtins from 32 bits architectures
  xtensa: Remove 64 bits atomic builtins stubs

Rohan McLure (1):
  powerpc/{32,book3e}: kcsan: Extend KCSAN Support

 arch/powerpc/Kconfig          |  2 +-
 arch/xtensa/lib/Makefile      |  2 --
 arch/xtensa/lib/kcsan-stubs.c | 54 -----------------------------------
 kernel/kcsan/core.c           |  2 ++
 4 files changed, 3 insertions(+), 57 deletions(-)
 delete mode 100644 arch/xtensa/lib/kcsan-stubs.c

-- 
2.40.1

Re: [PATCH 0/3] Extend KCSAN to all powerpc

Posted by Michael Ellerman 2 years, 7 months ago

On Fri, 12 May 2023 17:31:16 +0200, Christophe Leroy wrote:
> This series enables KCSAN on all powerpc.
> 
> To do this, a fix is required to KCSAN core.
> 
> Once that fix is done, the stubs can also be removed from xtensa.
> 
> It would be nice if patch 1 could go in v6.4 as a fix, then patches 2 and 3
> could be handled separately in each architecture in next cycle.
> 
> [...]

Applied to powerpc/next.

[1/3] kcsan: Don't expect 64 bits atomic builtins from 32 bits architectures
      https://git.kernel.org/powerpc/c/353e7300a1db928e427462f2745f9a2cd1625b3d
[2/3] powerpc/{32,book3e}: kcsan: Extend KCSAN Support
      https://git.kernel.org/powerpc/c/95567f46b4d20c047750a5e3029461afcdc67697
[3/3] xtensa: Remove 64 bits atomic builtins stubs
      https://git.kernel.org/powerpc/c/bcea4f7a70dc800e769ef02d8c3bc4df357ed893

cheers

Re: [PATCH 0/3] Extend KCSAN to all powerpc

Posted by Marco Elver 2 years, 9 months ago

On Fri, 12 May 2023 at 17:31, Christophe Leroy
<christophe.leroy@csgroup.eu> wrote:
>
> This series enables KCSAN on all powerpc.
>
> To do this, a fix is required to KCSAN core.
>
> Once that fix is done, the stubs can also be removed from xtensa.
>
> It would be nice if patch 1 could go in v6.4 as a fix, then patches 2 and 3
> could be handled separately in each architecture in next cycle.
>
> Christophe Leroy (2):
>   kcsan: Don't expect 64 bits atomic builtins from 32 bits architectures
>   xtensa: Remove 64 bits atomic builtins stubs
>
> Rohan McLure (1):
>   powerpc/{32,book3e}: kcsan: Extend KCSAN Support

Acked-by: Marco Elver <elver@google.com>