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| author | Masami Hiramatsu <mhiramat@kernel.org> | 2020-11-03 14:49:04 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2020-11-10 17:12:30 +0000 |
| commit | ba090f9cafd53dbabe0f0a8c4ccae44203d3731b (patch) | |
| tree | 007b9a05464fa6f7eb18ab92e4cc3f1b316196b3 /arch/arm64/include/asm/kprobes.h | |
| parent | f8394f232b1eab649ce2df5c5f15b0e528c92091 (diff) | |
| download | lwn-ba090f9cafd53dbabe0f0a8c4ccae44203d3731b.tar.gz lwn-ba090f9cafd53dbabe0f0a8c4ccae44203d3731b.zip | |
arm64: kprobes: Remove redundant kprobe_step_ctx
The kprobe_step_ctx (kcb->ss_ctx) has ss_pending and match_addr, but
those are redundant because those can be replaced by KPROBE_HIT_SS and
&cur_kprobe->ainsn.api.insn[1] respectively.
To simplify the code, remove the kprobe_step_ctx.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201103134900.337243-2-jean-philippe@linaro.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/kprobes.h')
| -rw-r--r-- | arch/arm64/include/asm/kprobes.h | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/arm64/include/asm/kprobes.h b/arch/arm64/include/asm/kprobes.h index 8699ce30f587..5d38ff4a4806 100644 --- a/arch/arm64/include/asm/kprobes.h +++ b/arch/arm64/include/asm/kprobes.h @@ -28,18 +28,11 @@ struct prev_kprobe { unsigned int status; }; -/* Single step context for kprobe */ -struct kprobe_step_ctx { - unsigned long ss_pending; - unsigned long match_addr; -}; - /* per-cpu kprobe control block */ struct kprobe_ctlblk { unsigned int kprobe_status; unsigned long saved_irqflag; struct prev_kprobe prev_kprobe; - struct kprobe_step_ctx ss_ctx; }; void arch_remove_kprobe(struct kprobe *); |