linux-kernel - Re: [PATCH v3 0/9] Cleanup/Optimise KUAP (v3)

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Date:   Thu, 10 Aug 2023 16:02:25 +1000
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v3 0/9] Cleanup/Optimise KUAP (v3)

On Tue, 11 Jul 2023 17:59:12 +0200, Christophe Leroy wrote:
> This series is cleaning up a bit KUAP in preparation of using objtool
> to validate UACCESS.
> 
> There are two main changes in this series:
> 
> 1/ Simplification of KUAP on book3s/32
> 
> [...]

Applied to powerpc/next.

[1/9] powerpc/kuap: Avoid unnecessary reads of MD_AP
      https://git.kernel.org/powerpc/c/880df2d46a3f23f30f954f6e64c576d7f411cc46
[2/9] powerpc/kuap: Avoid useless jump_label on empty function
      https://git.kernel.org/powerpc/c/1bec4adcd59e923df6b7f5d492a9e4b8dfd22039
[3/9] powerpc/kuap: Fold kuep_is_disabled() into its only user
      https://git.kernel.org/powerpc/c/38bb171b958480b484e8e980be76c7d3656881ea
[4/9] powerpc/features: Add capability to update mmu features later
      https://git.kernel.org/powerpc/c/6b289911c80d45fd8da3d24ea14706361381b78d
[5/9] powerpc/kuap: MMU_FTR_BOOK3S_KUAP becomes MMU_FTR_KUAP
      https://git.kernel.org/powerpc/c/4589a2b7894d4266380b65e13291f609cf19dd19
[6/9] powerpc/kuap: Use MMU_FTR_KUAP on all and refactor disabling kuap
      https://git.kernel.org/powerpc/c/26e041208291bfdea1cb9e26bc94a0f9499efe15
[7/9] powerpc/kuap: Simplify KUAP lock/unlock on BOOK3S/32
      https://git.kernel.org/powerpc/c/5222a1d5142ec4f9ec063b274b80e20639584dbc
[8/9] powerpc/kuap: KUAP enabling/disabling functions must be __always_inline
      https://git.kernel.org/powerpc/c/eb52f66f0abd468caf8be4e690d7fdef96250c2f
[9/9] powerpc/kuap: Use ASM feature fixups instead of static branches
      https://git.kernel.org/powerpc/c/3a24ea0df83e32355d897a18bbd82e05986dcdc3

cheers