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由 Rob Herring 提交于
stable inclusion from stable-v5.10.113 commit c55327bc3712ca96dc05bc4c6aab805b6fa8bb74 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5ISAH Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=c55327bc3712ca96dc05bc4c6aab805b6fa8bb74 -------------------------------- commit e5c23779 upstream. In the case where there is only a cycle counter available (i.e. PMCR_EL0.N is 0) and an event other than CPU cycles is opened, the open should fail as the event can never possibly be scheduled. However, the event validation when an event is opened is skipped when the group leader is opened. Fix this by always validating the group leader events. Reported-by: NAl Grant <al.grant@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: NRob Herring <robh@kernel.org> Acked-by: NMark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20220408203330.4014015-1-robh@kernel.org Cc: <stable@vger.kernel.org> Signed-off-by: NWill Deacon <will@kernel.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com> Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
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