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    Subject[PATCH v2 4/6] perf: Remove perf_event_attr::type check
    Date
    PMU type id can be allocated dynamically, so perf_event_attr::type check
    when copying attribute from userspace to kernel is not valid.

    Signed-off-by: Lin Ming <ming.m.lin@intel.com>
    ---
    kernel/events/core.c | 7 -------
    1 files changed, 0 insertions(+), 7 deletions(-)

    diff --git a/kernel/events/core.c b/kernel/events/core.c
    index 9f4f463..7bd8d5d 100644
    --- a/kernel/events/core.c
    +++ b/kernel/events/core.c
    @@ -5928,13 +5928,6 @@ static int perf_copy_attr(struct perf_event_attr __user *uattr,
    if (ret)
    return -EFAULT;

    - /*
    - * If the type exists, the corresponding creation will verify
    - * the attr->config.
    - */
    - if (attr->type >= PERF_TYPE_MAX)
    - return -EINVAL;
    -
    if (attr->__reserved_1)
    return -EINVAL;

    --
    1.7.5.1


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