riscv: keep interrupts disabled for BREAKPOINT exception
authorJisheng Zhang <jszhang@kernel.org>
Mon, 29 Mar 2021 18:16:24 +0000 (02:16 +0800)
committerPalmer Dabbelt <palmerdabbelt@google.com>
Fri, 16 Apr 2021 04:32:40 +0000 (21:32 -0700)
commit7ae11635ec90072083503c6b6485cdffe46203b3
treef7914021e422b50549e819decdb5992901ebe276
parente31be8d343e64e7ab17aef55c1d1b36dc504da67
riscv: keep interrupts disabled for BREAKPOINT exception

Current riscv's kprobe handlers are run with both preemption and
interrupt enabled, this violates kprobe requirements. Fix this issue
by keeping interrupts disabled for BREAKPOINT exception.

Fixes: c22b0bcb1dd0 ("riscv: Add kprobes supported")
Cc: stable@vger.kernel.org
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
[Palmer: add a comment]
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
arch/riscv/kernel/entry.S