Hello:
This patch was applied to bpf/bpf.git (master)
by Daniel Borkmann <daniel@xxxxxxxxxxxxx>:
On Fri, 19 Apr 2024 18:28:32 +0000 you wrote:
> The current implementation of the mov instruction with sign extension
> has the following problems:
>
> 1. It clobbers the source register if it is not stacked because it
> sign extends the source and then moves it to the destination.
> 2. If the dst_reg is stacked, the current code doesn't write the value
> back in case of 64-bit mov.
> 3. There is room for improvement by emitting fewer instructions.
>
> [...]
Here is the summary with links:
- [bpf] arm32, bpf: reimplement sign-extension mov instruction
https://git.kernel.org/bpf/bpf/c/c6f48506ba30
You are awesome, thank you!
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