ARM: 7873/1: vfp: clear vfp_current_hw_state for dying cpu
The CPU_DYING notifier is called by cpu stopper task which does not own the context held in the VFP hardware. Calling vfp_force_reload() has no effect. Replace it with clearing vfp_current_hw_state. Signed-off-by: Yuanyuan Zhong <zyy@motorola.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -642,9 +642,9 @@ int vfp_restore_user_hwstate(struct user_vfp __user *ufp,
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static int vfp_hotplug(struct notifier_block *b, unsigned long action,
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void *hcpu)
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{
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if (action == CPU_DYING || action == CPU_DYING_FROZEN) {
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vfp_force_reload((long)hcpu, current_thread_info());
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} else if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
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if (action == CPU_DYING || action == CPU_DYING_FROZEN)
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vfp_current_hw_state[(long)hcpu] = NULL;
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else if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
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vfp_enable(NULL);
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return NOTIFY_OK;
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}
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