If it is only a slight bend, ask yourself, "Does the bend stop the inner pole sliding in the outer pole and/or does it affect the stability of the awning?" If not, then it is possibly best to leave well alone.
Aluminium is a strange material. It stretches when it gets bent and/or dented and it is almost impossible to straighten it without leaving kinks. I had a friend with a 1936 vintage HRG sports car. The bodywork was all aluminium. In the dark, he ran it into a sheep sleeping in the middle of the road in the wilds of Scotland. While the dumbirons on the front of the chassis took the brunt of the shunt, there was some damage to the front wings and the bonnet. Because it was aluminium it stretched and we had to beat it back as far as possible on a leather sand bag then cut out the stretched parts, patch from the inside with glass fibre then fill and paint. It was surprising how much metal we had left over after cutting out the stretched bits.
If the pole is slightly more bent than "does it really matter?" level, you could try putting it on a hard surface with the bend upwards, put a piece of 19mm chipboard or similar on it and press down. The chipboard spreads the load along the length thus, hopefully, avoid a kink. Failing that, it means a new pole.
Sorry to be a harbinger of dispare but it really is a "suck it and see" situation.