The largest US bank JPMorgan kicked off earnings season with a modest 6% annual rise in first-quarter profits on Friday, however, CEO Jamie Dimon warned that inflation and geopolitical risks may impact the bank’s operations in the future. Most metrics of JPMorgan’s business were solid for the year’s first three months. The lender earned a profit of $13.42 billion, or $4.44 a share. JPMorgan’s results were impacted by a $725 million one-time charge to the Federal Deposit Insurance Corporation. While investment banking revenues were largely flat, the bank reported an uptick in activity. In the c…