Re: [PATCH 5.10 01/14] arm64: insn: Add barrier encodings

[Sasha Levin <sashal@kernel.org>]

[ Sasha's backport helper bot ]

Hi,

✅ All tests passed successfully. No issues detected.
No action required from the submitter.

The upstream commit SHA1 provided is correct: d4b217330d7e0320084ff04c8491964f1f68980a

WARNING: Author mismatch between patch and upstream commit:
Backport author: Pu Lehui<pulehui@huaweicloud.com>
Commit author: Julien Thierry<jthierry@redhat.com>

Status in newer kernel trees:
6.15.y | Present (exact SHA1)
6.14.y | Present (exact SHA1)
6.12.y | Present (exact SHA1)
6.6.y | Present (exact SHA1)
6.1.y | Present (exact SHA1)
5.15.y | Present (exact SHA1)

Note: The patch differs from the upstream commit:
---
1:  d4b217330d7e0 ! 1:  ba32b33ce84dd arm64: insn: Add barrier encodings
    @@ Metadata
      ## Commit message ##
         arm64: insn: Add barrier encodings
     
    +    [ Upstream commit d4b217330d7e0320084ff04c8491964f1f68980a ]
    +
         Create necessary functions to encode/decode aarch64 barrier
         instructions.
     
    @@ Commit message
         Link: https://lore.kernel.org/r/20210303170536.1838032-7-jthierry@redhat.com
         [will: Don't reject DSB #4]
         Signed-off-by: Will Deacon <will@kernel.org>
    +    Signed-off-by: Pu Lehui <pulehui@huawei.com>
     
      ## arch/arm64/include/asm/insn.h ##
     @@ arch/arm64/include/asm/insn.h: __AARCH64_INSN_FUNCS(eret_auth,	0xFFFFFBFF, 0xD69F0BFF)
    @@ arch/arm64/include/asm/insn.h: static inline bool aarch64_insn_is_adr_adrp(u32 i
     +	       aarch64_insn_is_pssbb(insn);
     +}
     +
    + int aarch64_insn_read(void *addr, u32 *insnp);
    + int aarch64_insn_write(void *addr, u32 insn);
      enum aarch64_insn_encoding_class aarch64_get_insn_class(u32 insn);
    - bool aarch64_insn_uses_literal(u32 insn);
    - bool aarch64_insn_is_branch(u32 insn);
---

Results of testing on various branches:

| Branch                    | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-5.10.y       |  Success    |  Success   |