fakekey: Simplify speakup_fake_key_pressed through this_cpu_ops
The whole function can be expressed as a simple this_cpu_read() operation. The function overhead is now likely multiple times that of the single instruction that is executed in it. Sedat: fixed compile failure caused by an extra ')'. Cc: William Hubbs <w.d.hubbs@gmail.com> Cc: Sedat Dilek <sedat.dilek@gmail.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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@ -95,10 +95,5 @@ void speakup_fake_down_arrow(void)
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*/
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bool speakup_fake_key_pressed(void)
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{
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bool is_pressed;
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is_pressed = get_cpu_var(reporting_keystroke);
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put_cpu_var(reporting_keystroke);
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return is_pressed;
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return this_cpu_read(reporting_keystroke);
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}
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