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authorDoug Anderson <dianders@chromium.org>2014-04-21 18:40:36 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-04-25 00:38:22 +0200
commitf94b0572683716f727b25086f8d39671506593ab (patch)
treec1428aa4245d01149c008c70558b15a166c84d12 /Documentation/netlabel/cipso_ipv4.txt
parentserial: samsung: don't check config for every character (diff)
downloadlinux-f94b0572683716f727b25086f8d39671506593ab.tar.xz
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serial: samsung: Change barrier() to cpu_relax() in console output
The two functions to write out to the console (one used in normal console mode and one in polling console mode) were slightly different. One used a barrier() in its loop and the other a cpu_relax(). The barrier() really doesn't do anything since we're using rd_regl() to read the port anyway. Switch it to cpu_relax() to make things consistent. No known bugs / issues are fixed by this change--it just makes things more consistent. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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