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    Subject[PATCH v13 01/11] arm64: Remove NULL task check from unwind_frame()
    Date
    From: "Madhavan T. Venkataraman" <madvenka@linux.microsoft.com>

    Currently, there is a check for a NULL task in unwind_frame(). It is not
    needed since all current consumers pass a non-NULL task.

    Signed-off-by: Madhavan T. Venkataraman <madvenka@linux.microsoft.com>
    Reviewed-by: Mark Brown <broonie@kernel.org>
    Reviewed-by: Mark Rutland <mark.rutland@arm.com>
    ---
    arch/arm64/kernel/stacktrace.c | 3 ---
    1 file changed, 3 deletions(-)

    diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
    index 0fb58fed54cb..5f5bb35b7b41 100644
    --- a/arch/arm64/kernel/stacktrace.c
    +++ b/arch/arm64/kernel/stacktrace.c
    @@ -69,9 +69,6 @@ static int notrace unwind_frame(struct task_struct *tsk,
    unsigned long fp = frame->fp;
    struct stack_info info;

    - if (!tsk)
    - tsk = current;
    -
    /* Final frame; nothing to unwind */
    if (fp == (unsigned long)task_pt_regs(tsk)->stackframe)
    return -ENOENT;
    --
    2.25.1
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