Travel back to USA after stay ~6 months in India

Hello,

I am a Green Card holder and am currently in India for more than 5 months. I had to temporarily travel to India due to a family medical emergency. My primary residence, employment, and life remain in the United States, and I am returning to USA next month before 6 month finishes.

Is there any cause for concern at US port of entry due to my stay ~6 months in India?

Appreciate any comment or feedback on this.

Thank you!

Sam