Re: [PATCH v2] riscv: provide riscv-specific is_trap_insn()

[patchwork-bot+linux-riscv]

Hello:

This patch was applied to riscv/linux.git (for-next)
by Palmer Dabbelt <palmer@xxxxxxxxxxxx>:

On Tue, 29 Aug 2023 10:36:15 +0200 you wrote:
> uprobes expects is_trap_insn() to return true for any trap instructions,
> not just the one used for installing uprobe. The current default
> implementation only returns true for 16-bit c.ebreak if C extension is
> enabled. This can confuse uprobes if a 32-bit ebreak generates a trap
> exception from userspace: uprobes asks is_trap_insn() who says there is no
> trap, so uprobes assume a probe was there before but has been removed, and
> return to the trap instruction. This causes an infinite loop of entering
> and exiting trap handler.
> 
> [...]

Here is the summary with links:
  - [v2] riscv: provide riscv-specific is_trap_insn()
    https://git.kernel.org/riscv/c/b701f9e726f0

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html