Fire is actually the rapid oxidation of a combustible material. Smoke is the airborne particulates and gases that result from the combustion, or from pyrolysis.
The sun is not undergoing an oxidation reaction, so it's not producing particulates that one might refer to as smoke.
The process the sun is undergoing is nuclear fusion, where hydrogen are combined and create helium. This reaction is very energetic and releases heat, visible radiation, and other radiation along a wide swath of the electromagnetic spectrum. The reaction is self-sustaining - as long as there is fuel, the emissions of fusion reactions cause nearby fuel to react as well. No oxygen or oxidizing agent is required.
Further, the resulting helium is comparatively heavy, and the sun being a huge mass keeps both the hydrogen that is the fuel and the helium that is the product nearby - they don't leave like hot smoke does from a fire.
So there is no smoke as we might consider it - just helium gas (plasma), and even if there were it would simply drop into the sun, there is no such thing as "rising" from it as one might consider smoke does on earth-borne fires.
You might find this music video provides further instruction on composition and reaction of the sun.
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