[PATCH 2/2] powerpc/bpf: Reject atomic ops in ppc32 JIT

[Naveen N. Rao]

Christophe Leroy wrote:
> 
> 
> Le 01/07/2021 à 17:08, Naveen N. Rao a écrit :
>> Commit 91c960b0056672 ("bpf: Rename BPF_XADD and prepare to encode other
>> atomics in .imm") converted BPF_XADD to BPF_ATOMIC and updated all JIT
>> implementations to reject JIT'ing instructions with an immediate value
>> different from BPF_ADD. However, ppc32 BPF JIT was implemented around
>> the same time and didn't include the same change. Update the ppc32 JIT
>> accordingly.
>> 
>> Signed-off-by: Naveen N. Rao <naveen.n.rao at linux.vnet.ibm.com>
> 
> Shouldn't it also include a Fixes tag and stable Cc as PPC32 eBPF was added in 5.13 ?

Yes, I wasn't sure which patch to actually blame. But you're right, this 
should have the below fixes tag since this affects the ppc32 eBPF JIT.

> 
> Fixes: 51c66ad849a7 ("powerpc/bpf: Implement extended BPF on PPC32")
> Cc: stable at vger.kernel.org

Cc: stable at vger.kernel.org # v5.13


Thanks,
- Naveen